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Is it expected that a specific research trend will emerge regarding the issue of climate change that is different from what preceded it, especially after the election of President Donald Trump?
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Drill, baby drill? Trump policies will hurt climate ― but US green transition is under way
Market forces could undercut the administration’s plans to increase the use of fossil fuels such as oil and petrol...
"Higher greenhouse-gas emissions, fewer jobs, more expensive energy and dirtier air that kills more people: researchers have begun plugging US President Donald Trump’s energy and climate policies into their models, and the early results suggest far-reaching environmental, health and economic consequences..."
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How can I download historical climate data? What are the websites that could be beneficial for predicting rainfall in arid and semi-arid environments characterized by sudden and destructive rainfall?
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To download historical climate data and predict rainfall in arid and semi-arid environments, you can use the following resources:
  1. NOAA Climate Data Online (CDO): Provides extensive global historical weather and climate data.
  2. NASA POWER: Offers satellite-based climate data suitable for environmental modeling and agriculture.
  3. WorldClim: Supplies high-resolution climate data, including precipitation, for predictive modeling.
  4. Copernicus Climate Data Store (CDS): Offers free access to climate datasets and forecasting tools.
  5. National Meteorological Agencies: Local weather services often provide detailed, region-specific historical and forecasted climate data.
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Have a nice day everyone,
I'm stuck in extracting datasets out of MPI-ESM-MR netcdf files because the latitude ranges from -3*10^6 to 3*10^6 and longitude ranges -5,9*10^6 to 5,9*10^6. Plus, the consecutive latitude and/or longitude values have 50000 between them.
You can see the issue at the screenshot I shared with the question
I'd be so glad if you just tell me how to extract for example data of a point with lat 37.4 and long 27.28.
Thanks in advance
Best regards
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Hi. I am dealing with a similar issue with data from the MPI-ESM1-2-LR model output from the CMIP6 historical simulation. I am surprised that the output was not interpolated to lat/lon before being uploaded to the publicly available servers. I downloaded the data from the Copernicus Climate Data Store. My question is how you generated the 0.txt file. It seems like I would need a different text file to give to the remapbil function.
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I'm developing a machine learning model that requires up-to-date climate data of recent years. However, the historical period in the CMIP6 datasets typically ends in 2014.
Are there any solutions that can provide "historical" climate data extending beyond 2014?
Is it reasonable to use the "SSP 2 RCP 4.5" scenario of 2015-2023 "projection" data as "historical"?
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@Ali Reza Shahvaran I wish you all the best in your search.
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DOGMATISM or ABSURDITY or DOGMABSURDITY ?
( I invented the word "DOGMABSURDITY" for this context. )
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The choice to use Fahrenheit temperatures instead of Celsius can be viewed in different ways, depending on the context and culture. In some regions, especially the United States, the Fahrenheit scale is the norm and therefore may be considered easier for locals to use, as they are familiar with it. On the other hand, the Celsius scale is widely used in the scientific world and in many countries, and is seen as more logical due to its alignment with the metric system.
Resistance to adopting the Celsius system in places where Fahrenheit is standardized can be interpreted as a form of cultural dogmatism or an aversion to change. However, it can also be a matter of comfort and adaptation to what is already known. Thus, insistence on using Fahrenheit in contexts that favor Celsius can be seen as irrational, but it can also reflect cultural preference. The choice of a thermal scale should ideally prioritize clarity and comprehensibility, especially in situations where accuracy of information is crucial, such as in meteorology or environmental sciences.
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Hello, scientific community hope you are doing well. I am modeling the prediction of meteorological drought using the climate data (RCP4.5 & 8.5). However, I got stuck in the bias correction of downloaded data. Could anyone please help me out with this? I have tried to do it in Cmhyd software earlier but did not get the desired results. If anyone has Python code to do it, please share it in DM. Happy modeling. Thanks in advance.
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Dear Kalpesh,
There are a few Python packages that could be suitable for your work (depending on what variable you want to bias-correct and if you have a preference for a particular bias-correction method). I would suggest ISIMIP3 (https://github.com/xiaohuihuiwang/isimip3/tree/master, https://www.isimip.org/documents/413/ISIMIP3b_bias_adjustment_fact_sheet_Gnsz7CO.pdf). Just came across this as well https://egusphere.copernicus.org/preprints/2023/egusphere-2023-1481/egusphere-2023-1481.pdf.
In addition, you can also find bias-adjusted climate variables for the different SSP-RCP scenarios. NASA-NEX-GDDP CMIP6 provides bias-adjusted GCMs' variables at 0.25 x 0.25 deg resolution for almost 35 GCMs, but the number of GCMs will defer by variables and scenarios.
Could you clarify what you mean by "I am modeling the prediction of meteorological drought using the climate data". Do you mean a statistical/machine learning model to project droughts in the future? (If you use climate model data from CMIP5 or CMIP6, these are projections, not predictions, unless you are planning to do something different that I didnt' understand).
Rgds,
Malcolm
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I am working with temperature, precipitation data (0.1 degree from CDS store) and population density data (2.5 min from SEDAC) and often have to change the resolution of either data to achieve a common resolution. I do this using cdo but often get confused on which interpolation method would be more appropriate or give accurate results for a particular variable. And does the choice of method also depends on whether we are interpolating from coarser to finer grid or vice-versa? What method should be used for population data? Can you guide me on this or provide some good references?
cdo remapbil,target_file_name temp.nc outfile.nc cdo remapcon,target_file_name prec.nc outfile.nc
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You can uses remapdis o remapbil for regular grids. The interpolation for both methods are very same. You can analized performance compared reanalysis with local meteorological data. The metrics are used common RSME, Bias, Taylor Diagram.
Best regards Axel
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Hello, friends. Currently, I am working on species distribution modelling using maxent. I have run the model using occurrence and climate data from WorldClim. Where i can find calibration area (e.g., buffer zones, minimum convex polygons, enclosing rectangles) biases introduced during the calibration process from my model
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Creo que un Estadígrafo puede ayudar.
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Hello, if anyone can help , I am using CMHYD as a tool for bias correction. I use observed data 2006-2019, and cordex downloaded data 1981-2100 . I get No error for the file of observed Nor the evaluation file, but when I click check files I get this error in the terminal
Traceback (most recent call last):
File "climate_swat_plot_ui_org.py", line 1098, in check
File "climate_swat_plot_ui_org.py", line 1160, in pre_process
File "climateArcsSWAT2.pyc", line 1670, in getinnerdata
File "pandas\indexes\base.pyc", line 1264, in __getitem__
IndexError: index 0 is out of bounds for axis 0 with size 0
Anyone can help what is the problem ?
Thanks in advance
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Dear Ossama
If you use the observed data 2006-2019 the overlap period is not enough. To do the bias correction the overlap period is more than 80%. Therefore, the historical and observed data will be sufficient to get the correct. If you use 100% overlap period I am sure you get the perfect extracted data.
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I bought climate data from IMD. Now I cannot open the .grd files. I want to use it in GIS. HELP! Aside from grads software, what else can I use to open the file? I tried every possible way so please help me in this.
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Install GDAL and use GDAL translate command..
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Let me know if there is a tool or method we can use better than long-term meteorological data to get better yields and determine crop water use.
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Yes
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I have tried with no avail to make a logistic regression and random forest model work.
First i fitted a model with climatic measurements as independent variables (2015-2020, almost five years) and mosquito incidence (coded binary for a n regions) data as target. There were some under-sampling issues that were dealt with and the overall models were significant. Some variables were not-significant (or non important for RF) and not kept in the model.
Then, the same (significant) variables were extracted from a future time climate model for 2080-2085, and used to predict the incidence for said region.
The problem is that it for any year on the future time period it predicts presence for all regions.
Anyone has dealt with problems like this? logistic regression or RF models being inconclusive or unusable when used for prediction?
Best
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Destruction of mosquitoes breeding sites with Community engagement and application of IVM
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How can I make extrapolation of weather data of a given area which located near to my study area? (I only have the climate data of that region)
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De manera no automatizada, cuando se trata de temperaturas se utiliza el gradiente térmico, que varía según la altitud, en términos generales 0.6 °C por cada 100 metros de diferencia en regiones templadas y 0.7 °C en regiones semiáridas; aunque es mejor calcular dicho gradiente de manera local.
En cuanto a precipitación se pueden utilizar los polígonos de Thyessen.
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This discussion is to record the maintenance, development, and update of the MATLAB module to detect and analyse marine heatwaves - m_mhw.
If you have any suggestions, requests, or questions regarding this toolbox, please feel free to comment or email me
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Great!
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I do not doubt climate change and the disasters that come and will come from it ( ). However, one thing puzzles me: why would melting ice lead to rising ocean water levels? Plain high-school physics tell us it would not: see, for example: https://lnkd.in/d78U9S_f.
Of course, there is another physical thing we've all learnt in high school: warmer substances have a larger volume than cold substances. However, we also know the volume expansion coefficient of water is very tiny: only 210 parts on a million per degree Celsius (https://lnkd.in/e65sxJ5a). Oceans are 3.8 km deep (on average) but span millions of km2, so that can explain a few cm only - at best. Also, studies on rising sea levels in coastal cities show these cities tend to sink. So they need better shore protection but it has got nothing to do with rising ocean levels, it would seem.
Any thoughts, anyone? [Again, I am not a climate change denier. See my rant against John Clauser, for example: https://readingfeynman.org/2023/09/04/another-tainted-nobel-prize/.]
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This is a good point, and your back-of-envelope calculations are correct, but I'm not sure that the temperature will uniformly increase down to the bottom of the ocean. As far as I understand, the deep ocean (below 200m) does not sense that much what happens above. OK, let's increase this depth to 500m - still, we will be dealing with ~8 times smaller volume that should be considered as an expanding one, yielding ~10cm per degree of warming. Overall, I would be more worried by the increasing frequency of extreme meteorological events associated with global warming - it's easier to build even a 3m dam than to protect the whole area from hurricanes or tsunamis.
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Hi
I intend to model a thermal responde we measured with ERA5 variables, and later, use this model to predict the future responde with CMIP6 variables.
My doubt is, how to use precipitation correctly?
In ERA5 hour analysis total precipitation comes in meters acumulated in 1hour (so its m/h I suppose) and in CMIP6 comes in Kg/m2/s .
Kg/m2/s is the same as mm/s, so I'm wondering if turning ERA5 precipitation from meters/hour to mm/s and use that in a valid way?
Also, am I messing up units considering the grids are not even the same in both datasets?
Thank you!
Cheers, Luís Pereira.
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Hi Luis
To convert precipitation from g/m**2/s , you have to multiply by 3.6 to get precipitation in mm/hour. Since 1g=0.001kg, we can match units of kg/m**2/s to mm/hr. Now if you have the time of accumulation of precipitation in hr, you can easily match the two units (kg/m2/sec to meter).
See "On the continuity and distribution of water substance in atmospheric circulations" by E. Kessler, Atmospheric Research 38 (1995) 109-145.
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a continuously generated (date based) controlled climate data including temperature, Relative humidity, and solar radiation. A relevant insight or script for a crop growth model
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Olumide Alabi Both R and Python are capable of handling crop growth modeling with controlled-climate data. The choice between the two largely depends on your familiarity with the programming languages and your specific requirements. Here's a brief overview:
1. R:
- R is known for its strong statistical and data analysis capabilities, making it suitable for working with agricultural data.
- It has packages like "agricolae," "crop," and "phytotools" that are specifically designed for crop modeling.
- You can utilize packages like "ggplot2" for data visualization, which can be helpful in understanding the results of your crop growth model.
- R's user-friendly interfaces like RStudio make it accessible for researchers with different backgrounds.
2. Python:
- Python is a versatile programming language with a wide range of libraries and frameworks.
- Libraries like "numpy," "pandas," and "scipy" provide robust data manipulation and scientific computing capabilities.
- "matplotlib" and "seaborn" are popular Python libraries for data visualization.
- Python offers machine learning libraries like "scikit-learn" that can be used for predictive modeling in agriculture.
- Integration with Jupyter notebooks allows for interactive data analysis and modeling.
For crop growth modeling with controlled-climate data, you can use either R or Python, depending on your personal preference and the specific tasks you need to perform. If you are comfortable with both languages, you may choose the one that aligns better with your existing workflow or research team's preferences. Additionally, consider the availability of relevant packages and resources in the chosen language to streamline your work.
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After going to this website https://esgf-node.llnl.gov/search/cmip6/ I am facing doubt in which models to select, since there are many Global Climatic Models available. I am new in this field. Please guide.
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Thank you so much Brook.
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how can I obtain free precipitation, temperature, and potential evaporation data for a specific lake for the past 20 years?
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Dear Saba Moshtaghi,
The availability of historical climate data can fluctuate based on the specific location and the particular parameters of interest. To ensure accurate data retrieval, it is crucial to possess the precise name and geographic coordinates, including latitude and longitude, of the lake in question.
Numerous government agencies, such as the National Weather Service, diligently gather and manage climatic data for various locations, including lakes. Additionally, you can explore organizations and websites that offer access to climate data, such as NASA's Earthdata Search and the World Meteorological Organization.
It is worth noting that certain datasets may necessitate permissions or subscriptions for access, requiring initial registration. Furthermore, depending on your research objectives, it may be advisable to consider data from at least three nearby weather stations and compute an average. This becomes especially critical when dealing with rainfall data, as precipitation patterns can vary significantly both temporally and spatially.
humble regards,
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Does anyone know how to import climate data into MODFLOW (in ModelMuse)
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  1. Get Your Climate Data: Grab your climate data – stuff like rainfall and temperature.
  2. Make Rain = Recharge: Turn that data into recharge rates. Basically, how much of that rain is going into the ground? Use a method like Soil-Water-Balance or Thornthwaite.
  3. Set Up Boundaries: Use ModelMuse to set up boundaries. Think of these as rules for where the rain goes. You can do this in the Recharge Package in MODFLOW.
  4. Import Data: In ModelMuse, import your recharge rate data. Usually, it's a simple import from a file (like CSV).
  5. Double-Check: Make sure your data matches the model cells and looks good.
  6. Run the Model: Hit the run button! Let ModelMuse crunch the numbers with your climate data.
  7. Check the Results: After it's done, dig into the results. See how your climate data impacts groundwater flow and levels.
  8. Experiment If Needed: If you're feeling adventurous, play around with different climate data or parameters to see what happens.
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What are the research results that support the thesis that as a result of human civilization, as a result of still increasing greenhouse gas emissions, the process of global warming in recent years has accelerated faster than previously predicted?
A growing number of research centers analyzing the planet's climate in the long term, analyzing the progressive process of climate change, developing long-term forecast models of climate change, changes in ocean water temps are publishing the results of their research, which show that as a result of human civilizational activity, as a result of still increasing greenhouse gas emissions, the process of global warming in recent years has accelerated faster than previously predicted just a few years ago. These institutions include, among others, the international research team established at the UN and publishing IPCC reports. In addition to this, the European Space Agency (ESA) Copernicus also recently published the results of its ongoing research on the climate of planet Earth, which showed that in the 1st half of 2023, the average temp. of planet Earth's atmosphere was 16.8 degrees C. This is the highest temp. in the history of measurements. This is further evidence supporting the thesis that the global climate crisis has begun, and that the green economic transformation measures carried out in recent years, including the reduction of greenhouse gas emissions, were definitely insufficient. In addition, in many countries, these actions have fallen far short of the pledges made at the UN Climate COP. Besides, the results of the aforementioned studies also support the thesis that the process of global warming in recent years has accelerated faster than previously predicted. This is a particularly important issue in the context of the living conditions of the next generations of people on the planet. Living conditions will rapidly deteriorate for many people on the planet in the not too distant future. Increasing summer heat, droughts, forest fires, weather anomalies, violent storms, drinking water shortages, deterioration of air quality, melting glaciers, rising water levels in the seas and oceans, shrinking areas of forests and other types of natural ecosystems, deterioration of the natural environment, progressive loss of biodiversity of natural ecosystems, extinction of pollinating insects and many other forms of life, etc. these are the key effects of the progressive global warming process, which will determine the deterioration of the quality of life on the planet for many people. In 2023 and 2024, the El Ninio effect is also an additional factor generating an increase in atmospheric temperature. However, according to the results of studies on the planet's climate, analyses of long-term climate change El Ninio is only an additional factor to the main factor is still the rapidly increasing greenhouse gas emissions generated by human civilization still based largely on the dirty combustion economy. However, there are many more research results also conducted by other institutions and research centers confirming the above theses. Please also provide other results of research conducted on this issue.
Key aspects of the negative effects of the progressive process of global warming and the related necessary acceleration of the processes of green transformation of the economy in order to decarbonize the economy, slow down the process of global warming, protect the climate, biosphere and biodiversity of the natural ecosystems of the planet, I described in the article:
IMPLEMENTATION OF THE PRINCIPLES OF SUSTAINABLE ECONOMY DEVELOPMENT AS A KEY ELEMENT OF THE PRO-ECOLOGICAL TRANSFORMATION OF THE ECONOMY TOWARDS GREEN ECONOMY AND CIRCULAR ECONOMY
In the following article, I included the results of the research conducted on the connection of the issue of sustainable development, the genesis and meaning of the Sustainable Development Goals, the essence of sustainable development in the context of social, normative, economic, environmental, climate aspects, as well as human rights, etc. The research also addressed the issue of key determinants of human existential security as an element of the concept of sustainable development.
HUMAN SECURITY AS AN ELEMENT OF THE CONCEPT OF SUSTAINABLE DEVELOPMENT IN INTERNATIONAL LAW
In view of the above, I address the following question to the esteemed community of scientists and researchers:
What are the results of research supporting the thesis that, as a result of human civilization, as a result of still increasing greenhouse gas emissions, the process of global warming in recent years has accelerated faster than previously predicted?
Has the process of global warming in recent years accelerated faster than it was predicted just a few years ago?
Please answer,
I invite everyone to join the discussion,
Thank you very much,
The above text is entirely my own work written by me on the basis of my research.
In writing this text I did not use other sources or automatic text generation systems.
Copyright by Dariusz Prokopowicz
On my profile of the Research Gate portal, you can find several publications on the issues of environmental policy, green transformation of the economy, green economics, sustainable economic development, etc. I invite you to scientific cooperation in these issues.
Best wishes,
Dariusz Prokopowicz
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There have been so many predictions of the effects of global warmings that it is imoossible to tell if the effects of global warming are greater than expected. For instance the The annual Arctic sea ice melt has stopped increasing whereas the Antarctic sea ice has stopped increasing and is now hitting record lows. https://nsidc.org/arcticseaicenews/charctic-interactive-sea-ice-graph/
But the number of wild fires and hurricanes etc. does seem to be increasing in intensity.
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AI aids in climate change mitigation through various applications, such as optimizing renewable energy systems, analyzing climate data for predictive modeling, and enabling more efficient resource management, leading to reduced greenhouse gas emissions and more sustainable practices.
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Artificial Intelligence (AI) plays a significant role in climate change mitigation by providing innovative solutions and tools to address various aspects of environmental challenges. Here are several ways AI contributes to climate change mitigation:
  1. Energy Efficiency and Management:AI can optimize energy consumption in various sectors, such as buildings, transportation, and industries. Smart grids and energy management systems powered by AI can balance energy demand and supply, reduce wastage, and integrate renewable energy sources effectively.
  2. Renewable Energy Generation:AI can enhance the efficiency of renewable energy sources like solar, wind, and hydroelectric power by predicting optimal conditions for energy generation, optimizing power output, and managing energy storage systems.
  3. Climate Modeling and Prediction:AI-driven climate models can analyze vast amounts of climate data to improve weather and climate predictions. These models assist in understanding climate patterns, extreme weather events, and long-term climate changes, enabling better preparedness and planning.
  4. Natural Resource Management:AI helps monitor and manage natural resources like forests, oceans, and water bodies. Satellite imagery and AI algorithms enable real-time monitoring of deforestation, illegal fishing, pollution, and habitat degradation.
  5. Agriculture and Land Use:AI-powered precision agriculture techniques improve crop yields, minimize resource use, and reduce emissions from agricultural activities. AI can provide insights into optimal planting times, irrigation scheduling, and pest control.
  6. Transportation and Mobility:AI can optimize transportation systems, reduce traffic congestion, and promote the use of electric and autonomous vehicles. Ride-sharing platforms, traffic management, and route optimization contribute to lower emissions and energy consumption.
  7. Carbon Capture and Storage (CCS):AI aids in developing more efficient and cost-effective carbon capture and storage technologies, which capture CO2 emissions from industrial processes and power plants, preventing them from entering the atmosphere.
  8. Waste Management:AI helps in improving waste management practices by identifying recycling opportunities, optimizing waste collection routes, and reducing landfill waste.
  9. Environmental Monitoring and Compliance:AI-driven sensors, drones, and monitoring systems assist in detecting pollution, illegal activities, and environmental violations, promoting compliance with regulations.
  10. Policy and Decision Making:AI provides data-driven insights to policymakers, helping them design effective climate policies and strategies based on accurate modeling and analysis.
  11. Climate Finance and Investment:AI algorithms assist in evaluating investment opportunities related to clean energy, carbon markets, and sustainable infrastructure projects.
By harnessing the capabilities of AI, researchers, scientists, policymakers, and businesses can make informed decisions and develop innovative solutions to address the complex challenges of climate change and contribute to a more sustainable future.
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Climate Data Operators (CDO)
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Dear Awad, to calculate seasonal precipitation Anomaly for 30 years using CDO you can do this as follows:
cdo ymonmean infile.nc outfile_climatology.nc #### The command "cdo ymonmean" is used to calculate the monthly mean of a dataset
and then
cdo ymonsub infile.nc outfile_climatology.nc outfile_anomalies.nc ####cdo ymonsub is used to calculate monthly anomalies from monthly climatologies
I hope this can help you
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Are there any open sources where I can access weather details from past 25 years? (Especially India)
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There are several reanalysis products you could use including MERRA2, NCEP-NCAR, and ERA-5 for global data. Each is a modelled product and all will give you different representations for your data, but any of them is a good start. I personally love python because it's very easy for geospatial data. Check out the xarray package within python to read .nc files and manipulate them easily.
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can anyone help me in doing Bias correction such as Quantile mapping using climate data in python ?
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I recommend the python-cmethods package: https://github.com/btschwertfeger/python-cmethods
There are multiple methods available for 1- and 3-dimensional time-series climate data.
  • Linear Scaling
  • Variance Scaling
  • Delta Method
  • Quantile Mapping
  • Quantile Delata Mapping
And the documentation includes descriptions and formulas as well as links to articles that deal with these methods: https://python-cmethods.readthedocs.io/en/stable/src/introduction.html
For fast bias corrections on large data sets I recommend the BiasAdjustCXX command-line tool: https://github.com/btschwertfeger/BiasAdjustCXX. There is also a brand new article describing about this tool (https://doi.org/10.1016/j.softx.2023.101379).
Both tools are free, open source and made by me.
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I found a discrepancy in ERA5-Land precipitation product. The monthly data is in theory the daily mean precipitation in meters per day. The problem is that when computing this from the hourly data the result is not the same value. I computed this for several months and grid-points, and I found in each case a discrepancy. Does anybody know why this discrepancy exists? Is there a problem/issue with the ERA5-Land product? If that is the case, which product is "correct"?
There another person got the same discrepancy, then in the comments, another researcher got also the mismatch in the precipitation values.
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Hi,
I use the ERA5-Land product and compare the hourly data with the monthly data of the same product ERA5-Land. This is a reanalysis, there is no forecast. I downloaded the data (monthly and hourly) two weeks ago. In theory, these datasets must be equivalent since one is the monthly mean of the other. See: https://essd.copernicus.org/articles/13/4349/2021/
Best,
Santiago
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I am trying to do bias correction for rainfall data using the ‘qmap’ package in R.
My daily observed data is collected from 1981 to 2014 at the point (station) scale. To downscale the future data, I extracted the variable for corresponding locations from GCMs, including historical and future period (1981-2100).
The observed and GCMs data are detected the relationship and estimate the parameters of downscaling future data. But when I do that using qmap package, the results are poor. The output data is aggregated to monthly scale, and evaluated the performance of different GCMs with root mean squared error (RMSE) and correlation coefficient (r). From the results, I found that the bias correction even decreased the r. Additionally, I also provide the boxplot for month and annual precipitation. The above results are based on the fitQmapRQUANT method in the ‘qmap’ package. I also tried to other methods (fitQmapDIST, fitQmapPTF, fitQmapQUANT, and fitQmapSSPLIN), however, the results are still poor.
Does anyone get such results or I am doing it in the wrong way? How can I apply "qmap" to downscale daily precipitation data with my observed data?
Thanks in advance
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If possible applie Quantile Mapping in daily value of precipitation, fir extreme value. For mean regimen use delta method
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Hi everyone,
I'm working on a research project on building performance under climate change scenarios. Does anyone know where can I get the future climate data in .EPW format for both typical and extreme weather files based on the IPCC climate change scenarios AR5 or AR6 in the US region?
Thanks a lot for your time,
With regards,
Ahmad Faiz Khan
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Hi
you can use meteonorm software and export future weather data files in epw. format.
Best
Christian
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I need to merge multiple netCDF files into one.
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Use Matlab
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My species of interest is a marine animal, and my study area is the Mediterranean Sea. All previous occurrence points are within the Mediterranean Sea, and my climate data has been clipped down to the size of my study area. When I run MaxEnt with WORLDCLIM BioClim data, the model output gives me only predicted distribution on LAND (mostly coastlines, some inland areas surrounding the Mediterranean Sea). Why is my model generating land-based occurrence points instead of occurrence points in the Med. Sea if my previous occurrence points and climate data occur in/over a waterbody? How can I fix this issue?
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Dear Caroline,
WorldClim contains data only for the terrrestial raster cells. So I completely agree with Alexandre Schickele and Pietro Milanesi . You should download marine datasets, such as Bio-ORACLE (https://www.bio-oracle.org/).
HTH,
Ákos
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specifically for the region of asia
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Hi If you are up to detailed weather data. Try to extract the synoptic weather data. See https://en.wikipedia.org/wiki/METAR and http://www.ogimet.com/synops.phtml.en
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My question might sound bit silly. But, I am really curious to know what makes two GCMs differnt? We know, GCMs simulate past and future climate based on some assumptions. Regarding future, we can not comment anything, but when the task is to simulate past climate, why does the model output vary from each other? Can someone please elaborate on this with some examples?
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Search for and read "The Art and Science of Climate Model Tuning" in the Bulletin of the American Meteorological Society to gain an understanding of the complexity of forcing models to replicate some of the "essential" elements of the global climate
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I have only Temperature and precipitation data of climate station
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Philbert Modest Luhunga thanks for your answer
I will grateful to you if provide me the script
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I will be thankful for any kind of help to extract from binary files using R programming, Python or MATLAB.
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Hello dear colleagues
How I am exploring colling strategies in buildings against overheating impact of climate change in this regard, I wanted to know where can i download RCP 8.5 free which are valid and trust
best regard
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The RCP database intends to document the "Representative Concentration Pathways" emissions, concentrations, and land-cover change projections (RCPs).
Click on the link below and fill in your details to retrieve the RCP 8.5 data
You might also find these links useful
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Hello, I want a weather generator that produces future climate data from 2022 to 2100, except (SDSM , LARS- WG) weather generator because they produce forecasts up to 2055 and I need to 2100, Can anyone recommend one to me?
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You can use CMIP6 model data. The historical data in CMIP6 is from 1850 to 2014, while the future model experiments are from 2015 to 2100.
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I am trying to get the bioclim data for each bioclimatic variable (1-19) per each sampling point that I have. I am able to manipulate the data in R and even get them into a data frame so that I can export them to my main excel data sheet. But when I look at the exported data it seems off. For instance, BIO1 is annual mean temp in celsius, but my locations were assigned values of 94-164. Something here is not adding up, many of the other variables are also quite a bit off from what I would expect. Am I interpreting these values incorrectly (is it not just simply a mean temp?) or when I got the data from worldclim did something go wrong?
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I seem to have found an answer thanks to someone over at stackexchange so I figured I would also share here in case others run into a similar issue. Worldclim temperature data is scaled by a factor of 10, meaning the mean annual temperatures I was talking about would have an actual range of 9.4°C-16.4°C. This helps to make file sizes smaller and easier to work with.
The worldclim website is not the easiest to navigate so I will link the exact page with the above info here: https://worldclim.org/data/v1.4/formats.html
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How the proxy data (from lacustrine records) are useful to validate climate models for future climate predictions?
Any suggestion would be great.
Thank you
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Proxy data (e.g. lacustrine) can be used to generate proxy temperature and precip. data for past periods, and they can conceivably be compared with historical simulations by climate models for validation purposes, especially for times before ~1950, i.e., before good observational networks were established to provide more direct validation. Those lacustrine records, however, don't have much to say about future climate. Any validation would be over historical times, and if the models perform okay for past climate, then confidence should be increased in their future projections.
See for info. on how to calibrate your lacustrine data. It looks like there are lots of tricky subtleties involved!
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Hello.
I understand how to detrend annual climate data, e.g. temperature, rainfall, and radiation.
However, for long-time series of daily climate data, what should I do? Maybe some software does that?
Hope to hear your opinions.
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Simple linear detrending works for an "interval" variable like temperature (and is what you get e.g., from CDO detrend) - even for long climate data, though in that case you should detrend each day of the year separately, i.e., detrend all 1st Januarys, then all 2nd Januarys, etc. Otherwise, try to remove the seasonal cycle first.
However, a "ratio" variable like precipitation should probably be de-trended differently than an "interval" variable like temperature. If you try simple linear detrending with precipitation, you will most likely get some unphysical negative rainfall, and turn some dry days into wet ones. So a "multiplicative" or geometric de-trending function is needed instead. See the attached presentation for the ideas and the formula:
Pdetrended = Poriginal * [1 + (Pmean – Plinear-estimate)/Pmean ]
This avoids negative precipitation and avoids turning dry days into wet ones, but it does not preserve the original mean (Pmean). If that is important, compute the mean of the new Pdetrended series, then scale all Pdetrended values by the factor (Pmean/Pdetrended_mean). This produces a final de-trended precipitation series that preserves the original mean.
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I am looking for some quality biophysical data products (ocean temperature, salinity, dissolved oxygen, Chl-a etc.), especially in-situ ones, for the water bodies situated near the arctic sea and Antarctica. Profiling Floats, Ice-Borne Observing Systems, Ice/Snow Surface Drifters etc. are some of the systems for acquiring polar ocean datasets. So far, I have come across the following sources:
  1. International Arctic Buoy Program: https://iabp.apl.uw.edu/data.html
  2. USGODAE Argo GDAC Data Browser: https://nrlgodae1.nrlmry.navy.mil/cgi-bin/argo_select.pl
  3. Biogeochemical-Argo: https://biogeochemical-argo.org/data-access.php
Are these sources good enough to represent ocean dynamics within the polar circle? I would much appreciate it if you could point out some other sources, whether it is in-situ, satellite or model, for understanding polar ocean dynamics.
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you can check Ocean Data View websites and Copernicus marine resources (https://resources.marine.copernicus.eu/products).
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I'm doing research for my degree thesis in architecture on the urban heat islands of the city of Naples - Italy.
I'm reclassifying the Land surface temeperature map in gis and I am looking for a method to classify the temperatures on the ground in a precise way, according to the classes that allow me to locate the heat islands.
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Cara Rosa,
There are no universal thresholds to classify urban heat islands because each city will experience its own specific climate and environmental constraints. Since you are dealing with a single city, I suggest you start by determining the lowest and the highest temperatures in your data set, and then divide that range (Tmax - Tmin) in 3 equal intervals. For instance, if Tmin = 18 and Tmax = 24, your intervals would be 18 to 20, 20 to 22 and 22 to 24 C. In that case, all areas falling in the lower interval could be labeled 'cool', the areas falling in the next class could be called 'warm', and those belonging to the higher interval could be indicative of 'hot' conditions.
You should make sure that your data set covers a region around the city large enough to include agricultural fields or forests: those areas would provide you with a baseline environmental temperature away from the urban center. An obvious extension of this approach would be to map the city areas in single degree intervals, from blues through to greens, yellows, oranges and red. That will clearly indicate which areas are hotter.
A better approach would be to start from a preliminary question: why do you need to make a map of the urban heat island effect of Naples in the first place? If you were concerned by the health effect of temperature on morbidity and mortality of the inhabitants, for instance, then your temperature thresholds should be driven by medical rather than purely statistical considerations. Similarly, if your underlying concern were energy expenditures (cooling during the summer or heating during the winter), then your thresholds should relate to the corresponding critical rates of energy expenditure. In other words, your approach should depend on your ultimate goal.
Remember also that
- the urban heat island is quite time-dependent: it varies with cloudiness and synoptic conditions such as sea-breeze on a daily time scale, it is much more noticeable during the winter than the summer, and it may evolve on longer time scales, depending on the rates of urbanization and industrialization;
- land surface temperature is quite dependent on altitude, so you might want to acquire a topographic map of your area and look at the correlation between these two parameters;
- a land use map of the region will be useful to properly interpret your results, as the hotter area may not be the city center but some industrial area, depending on their relative rates of energy consumption.
I hope these comments may help you in your work. Michel.
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According to information brought by WorldClim the new CMIP6 spatial data on temperature and precipitation should contain 12 layers per each downloadable file (1 layer per month) and the bio-climatic variables should have 19 layers in total.
However, when downloading the files from the page: https://www.worldclim.org/data/cmip6/cmip6_clim2.5m.html each file comes as a zip-file apparently only containing one geotiff-file. I don't know if each *.tif file could be layered, but haven't heard about it being possible? (Not like NetCDF).
I have used the WinRar for decompressing the zip-files and Surfer v. 15 for processing the *.tif files.
Thanks!
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The working solution to your question lies here:
Option B, will separate the layers in .tif format
All the best.
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Which Climatic Data is required for Temperature Forecasting by Artificial Neural Networks (ANNs)?
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The temperature regime of any planet is determined by external sources (solar radiation) and internal, if any (geothermal flows). Solar radiation is discrete and has a daily period, geothermic heat fluxes are continuous. There are territories on the surface of the planet where geothermal heat flows are blocked by lava covers (permafrost zones). The oceans also block geothermal heat flows.
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where can i download time series dataset in GRIM format to be run on CLIMEX 4.0 Compare Locations/Years? The user guide said that it is available from climond.org but i could not find it
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I have contacted by the website but no respond yet
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I had two raster stacks; the first represents the current climate data for 2010 and the second represents the future climate data for 2060. Each raster stack comprises 7 raster layers, including the mean annual temperature and mean annual precipitation etc. Is there any code r for computing distance-based climate change velocity?
Thank you so much
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If resilience will be faster...and the planet Haven posibility to regenerate in max double time then resilience...
Remake enviroment and climate at minimum condition from one generațion ..and all will come back to normal
PS
Dont eat insects or create farms for them.Please think what can be happened an accident at of escape of them ....in habitat...
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All significant climate change studies have been properly studied and are based on the most current, reliable science. Climate models form a reliable guide to potential climate change. However, which data is best for analyzing a certain area's climatic trend remains unclear. Climate data from weather stations or NASA's Worldwide Energy Resource Prediction (POWER).
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Thanks 👍
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Are hotter and hotter summers, more and more frequent droughts, drying up rivers and lakes, less and less rainfall, more and more forest fires the result of climate change and, above all, of the increasingly rapid process of global warming?
Is the current (mid-2022) record low water level in rivers a weather anomaly or another example of a long-term unfavourable trend resulting from accelerating global warming?
As of mid-August 2022, river water levels in several countries in Europe are at a 500-year record low.
It has been reported in the meanstream media that, for example, France's longest river, the Loire, can already be crossed on foot in some places.
Besides, the Loire has never flowed so slowly. The Rhine in Germany, on the other hand, is fast becoming impassable by barges.
In Italy, the water level in the Po is 2 metres lower than usual, with devastating effects on crops.
Is this a weather anomaly or another example of an unfavourable trend realised over a multi-year period as a result of accelerating global warming?
Or is it a combination of various unfavourable factors in 2022, which has resulted in the simultaneous occurrence of weather anomalies and the effects of an accelerating global warming process?
On the one hand, many countries have experienced hotter and hotter summers, more and more hot days in the summer period, increasingly frequent droughts, rivers and lakes drying up, less and less rainfall, etc.
On the other hand, an increase in the scale of forest fires has been reported in many countries. In Poland, from the beginning to the middle of 2022, there have already been as many forest fires as in the whole of the previous 2021.
What is your opinion on this subject?
What is your opinion on this topic?
Please reply,
I invite you all to discuss,
Thank you very much,
Greetings,
Dariusz Prokopowicz
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Everything is simpler and more complicated. Do you believe that this is beyond the capabilities of a person?
There is a HOLDING that gives such opportunities. I have them. The last case. And I read the horoscope on Wednesday. Today I will dream of a new idea. Don't oversleep. I didn't oversleep. I woke up and sat down at the computer. I drew diagrams, checked. This idea is now being formalized in the article "Chemical sources: the mechanism by which electrons convert the binding energy of atoms into a direct electric current." This is the third article in which I prove that electric current is not free electrons, but electromagnetic radiation of an electron. A new idea. Valence electrons do not need spins when combining atoms. It's not LGBT electrons to unite with their backs. When atoms combine, electrons cannot form a combined orbital, since immediately after radiation, the binding energies move to the nucleus (minimum energy). Read our articles on quantum theory. They all came in a dream. In the hospital when I was sick with covid,
in delirium, I saw and read the Internet, the doctors' magazine, then my article appeared, which I wrote before the illness. I read it 3 times, shortened it, edited it in my mind. They were discharged, immediately amended it and sent it to the editorial office on March 3. On March 29, they sent me a finished article, the Mining Industry magazine No. 3 2022 was published on May 6, 2022.
As for the climate, this year they promised to publish an article in English "Electron-wave energy of climatic processes in the natural environment".
I suggested changing the climate and weather to reduce weather anomalies. But they don't believe me. I'm sorry for the English. I taught in Africa for 3 years in French. Colleagues, Sincerely.
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I recently acquired subsets of two climate datasets containing data of monthly mean air temperature for my study area, one based on interpolation of surrounding meteorological stations and the other based on climate models. On both of them, despite wich kind of fit i try to do, the coefficient of determination values are below 0.3. Comparing this data with climate data from a relatively close airport, the values show some linear trend, but coefficient of determination is 0.65 and the slope has an opposite sign. What maybe the reason of this apparent local absence of trends? I thank you in advance for your time and consideration on this matter. (On the graphs: y-axis degree celsius, x-axis years).
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You are not the only one who doubts the existence of global warming. I noticed this after 1998, when there was a short but very statistically significant increase in temperature. It was not caused by the greenhouse effect. Look at charts from the internet.
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I have climate and vegetation data by latitude longitude. The vegetation data is a categorical variable with 20 possible options. The climate data is relative frequency of occurrence (RFO) for a dozen climate states - adding up to 100%.
What I want is a model where I can input the vegetation data classification, and it gives a most likely RFO for each climate state.
Using Random Forest models I already know that the climate data can predict the vege classification ~80% of the time, with quite a lot of 'near-misses' according to the confusion matrix, but what I need is the flip-side of this - if I input the vege data, can I get the RFO of the climate states.
I have been looking at K-means clustering, Linear Discriminant Analysis and Multiple Nominal Logistic Regression, but I am unsure if these apply to what I am trying to achieve. I also thought about producing probability densities for each climate state for each vege type, but I am not sure if there is already a method that would do that in a more functional way.
Are their existing statistical or machine learning techniques that achieve what I am trying to do?
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Partially, you are on the right path, but you need to make it more practical as your work objectives need. Therefore, I suggest you read about "fuzzy k-means classification of topo-climatic data derived from 100 m gridded digital elevation models (DEMs)". Moreover, you must know about NDVI and for your predictions make it CA-Markov.
Integrating all of these into your work is another story which is more accessible and possible than what I have told you here.
So, you data identification and analysis one side, and you must think about the integration as well.
Good Luck
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I was wondering if there's any tutorial or scripts that can be used to directly downscale and correct the bias in a reanalysis data available as NetCDF such as those provided by CRU or GPCC?
Also, for the downscaling part, does this mean we're just interpolating to lower mesh or is there an actual algorithm used to downscale the data in CDO?
Thanks in advance!
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what Ahmed Albabily mentioned in the query looks like he is interested in downscaling the precipitation data. I seriously suggest against statistical downscaling, especially for precipitation. Though physical-based numerical models are better for downscaling, the present employed methods can not downscale the precipitation reliably.
Cheers,
Kishore
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then the time column is showing as numbers, not as dates or different time steps. Please guide me how i can convert those nummbers into time steps or dates. Furthermore, if i compare the time column then 01-04-1959 08:00 AM is displaying as 519344.
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It doesn't look like UNIX. It looks like something that excel does when you convert a date field to number etc. Could be a badd formatting conversion
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What should be the method for big netcdf files? It will be good if anyone provide me the Python, R or MatLab code.
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Ákos Bede-Fazekas I want to obtain the data at every lat-long in spreadsheet form.
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Can anyone help me in doing such as downscaling using climate data in python?
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You can find a tool here: https://agrimetsoft.com/sd-gcm
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Hello friends,
I need to calculate such extreme precipitation indices (e.g., R5D, R20, RR1..etc) using R programming or Python. I will be thankful for any kind of help.
note that:
R5D --> the highest 5-day precipitation amount for each year.
R20 --> the annual count of days with precipitation >20 mm.
RR1 --> the annual count of rainy days > 1mm.
Regards,
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It seems that you likely read in netCDF files, ege.from https://psl.noaa.gov/data/gridded/data.unified.daily.conus.html.
There are many tutorials and videos you can google on how to access netCDF data via R. I find this one nice: https://cran.r-project.org/web/packages/futureheatwaves/vignettes/starting_from_netcdf.html
Once you have the data in R, then the calculations boil down to applying some "moving window"or "sliding window" function on a numeric vector.
In R you can use filter() for this purpose:
R5D <- filter(x, rep(1, n = 5), sides = 2) # gives sums on 5-day windows
which.max(R5D) # gives index of largest 5-day sum
From the date vector ("date"), that should be of class dateTime, you can create a vector containg the only the year:
year <- format(date, "%Y")
This vector can be used to split the precipitation vector ("prec") into yearly chunks (it's a list of numeric vectors):
precip_chunks <- split(precip, year)
No you can apply and kind of function on these chunks, e.g.
RD20 <- sapply(precip_chunks, function(x) sum(x>20))
or
RR1 <- sapply(precip_chunks, function(x) sum(x>1))
etc.
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I need to create a spatial map of precipitation data for a specific basin using python or R. I will be thankful if anyone can help me by sharing python or R code.
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Example in R
Requires package:
library(tidyverse), library(sf), library(sp), library(raster), library(ggplot2), library(ggpubr), library(tmap), library(viridis), library(leaflet), library(tmaptools), library(shiny), library(dplyr), library(rgeos), library(rgdal), library(gridExtra)
Use the getData function to download the climate data (Tmin, Tmax, Tmoy, Prec, RH) of your choice from the R:
c1<-getData('worldclim',var='bio',res=5)
Use the crop function to crop your raster according to the geographic coordinates of your study area:
c1<-crop(c1,extent(7.5,17.5,1,15))
To check the cut, use the plot function:
plot(c1)
The data from the Raster contains several pieces of information that you can extract:
bio12=annual precipitation
cam<-c1$bio12
To download the shapefiles of the country:
scam<-rnaturalearth::ne_countries(country = 'cameroon',returnclass = 'sf')
plot(scam)
Convertion into dataframe:
camdf<-as.data.frame(cam,xy=TRUE)%>%drop_na()
to=mask(cam,counties)
tocamdf<-as.data.frame(to,xy=TRUE)%>%drop_na()
View(camdf)
head(camdf)
attach(rasdf)
In order to produce the map:
x=ggplot()+
geom_raster(aes(x=tocamdf$x,y=tocamdf$y,fill=tocamdf$bio12))+
geom_sf(fill='transparent',data=counties)+
scale_fill_viridis_c(name='mm/an',direction=-1)+
labs(x='Longitude',y='Latitude',
title = "Carte climatique du Cameroun",
subtitle="Précipitations annuelles",
caption = 'Source worldclim,2021')+
grid()+
theme_bw()+
theme(panel.grid.major = element_line(color='black',
linetype='dashed',
size=.5),
panel.grid.minor = element_blank())
x
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hi everyone
I need this dataset to do my thesis.
can you help me?
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Just as Dennis Becker has explained, which also depends on what you want and the purpose for which you need the data.
You may also consider the hybrid data that combine different data sources like; https://www.chc.ucsb.edu/data/chirps
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Hello;
We have two twenty years data sets, for a historical time span, and a future prediction. for both, statistical distributions are fitted for five-year intervals, and for historical and predicted data, the same statistical distribution (Johnson SB, Gen. Pareto, and Wakeby) اave been selected as the most appropriate distributions.
Similar statistical distributions have been obtained for all five-year intervals and for the entire twenty-year time series. We want to know what this similarity in data analysis means?
Best
Saeideh
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Thanks for the plots they look pretty good to me.,Best wishes David Booth
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I have soil moisture dataset of woodland from four different soil depths like 0-5 cm,5-20cm,20-40 cm and 40-70 cm. I also have rainfall, and other climate data for Hydrus 1d model but I don't have any data about root water uptake. please suggest me what should I can do in place of the trees roots parameters. My woodland have Cypress trees.
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A water stress index introduces compensation in root water uptake. See detailed discussion in "Šimůnek, J., and J. W. Hopmans, Modeling compensated root water and nutrient uptake, Ecological Modeling, doi:10.1016/j.ecolmodel.2008.11.004, 220(4), 505-521, 2009." When the index is equal to one, there is no compensation, when it is smaller than one, there is compensation. This option allows the model to consider the fact that at high potential transpiration rates (r2H = 5 mm/day in the model simulation) stomata start to close at lower pressure heads (h2H) (in absolute value) than at low potential transpiration rates (r2L = 1 mm/d) (h2L), and thus an optimal range of pressure heads for root water uptake may vary.
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There are no reliable climate data for my research which is remote and quite far from a weather station. So, NASA power data is the last option. But I need to know the resolution.
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Thank you @pulakabha
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Hello Experts,
Since our targeted species is found only in the 2 km region of the study site, we are planning to use 30 m spatial resolution climate data on our Species Distribution Model. But the problem is that my local weather station is capable of providing 20 km resolution data. On the other hand, if I use WorldClim data that is also 1 km.
My questions are
1. Can I use these downscaled data (from 1 km or 20 km) on my local study on SDM, which will be on 30 m resolution?
2. If I downscale, will be there any variational changes on climate data? Is it acceptable to do so?
Please note that I'm new to this field.
Thank you for your valuable time.
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I am attending graduate school in Africa center of excellence for water management at Addis Ababa University, with a focus on hydrology and water resource management.   My specific project will likely focus on  satellite-based rainfall-runoff modeling on  wabi shebele river basin , and I am particularly interested in exploring the question of different satellite rainfall products for surface water assessment.
but i can not get a manual\video for detail analysis  about CDT
How can I get a training manual for CDT? If there are, Please share them with me by email or help me in recommending other tools/material for climate data?
I look forward to your response. Thank you very much again
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Dear Kindie,
As far as I know, I don't think you can find video tutorial for CDT so far. May be you can contact Dr.Tufaand Rijaf of IRI colombia university.
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I am trying to choose models for my Species Distribution Analyses. I know that according to CMIP6, up to 100 models should be released. However, I found only 68 in Meehl et al. 2020. Moreover, there are only five models available to download from the Chelsa database. I wonder how I can prefer one model to another? According to ECS (equilibrium climate sensitivity) or TCR (transient climate response)? If yes, which one is crucial in choosing the model?
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R. T. Corlett Thank you for your answer!
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How can I measure/predict soil temperature from climate data?
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Remote sensing data like surface temperature can help in mapping soil temperature.
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Hi all,
I am trying to look at the relationship between young birds' survival rate and temperature variations. For survival rate estimates, they are in annual resolution e.g. bird survival rate =20% in 2001 and 30% in 2002. While temperature measurements are in monthly resolution e.g. Jan 2001 average temperature = 10degreeC, Feb 2001 average temperature = 15degree C etc.
I tried running two linear regressions between 1) annual average temperature (averaging monthly weather estimates) and annual bird survival rate, 2) monthly average temperature and monthly bird survival rate (copying annual estimates so that all months of each year have the same values).
These two regressions yield very different results. The one using annual weather estimates showed a significant relationship between average temperature and survival rate whereas the monthly one showed no significant association.
I wonder if the difference in result is caused by copying and presenting the annual survival estimates in monthly resolutions? And should I use the annual method or monthly method to get a more accurate result from linear regression?
Thank you
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Hi,
I think it may give different results as in monthly data you have more variation (extreme values). However, when you average this monthly data to make it annual, then it become smoother in contrast to the monthly data. This can be one of the reasons.
Good luck!
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Hi Guys!
I usually download future climate data from Worldclim.org.
Their website says that "Data at 30-seconds spatial resolution is expected to be available by the end of March 2020", however, this has not materialized . . . https://www.worldclim.org/data/cmip6/cmip6climate.html
Does anyone know of alternative sources to download future data at this (1km) resolution?
Many thanks!
Joshua
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Hi Guys
Update, Worldclim has updated their website with new CMIP6 30arc sec variables.
We have waited long enough.
Enjoy!
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I am looking for daily/ monthly / annual temperature and precipitation data for southern African Cities and National parks. If there is anyone with a link, please help and also on how to extract it. I tried Worldclim.org/data but cant extract it....is there a special software for this?
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Hi Lazarus Chapungu , the worldclim data is given as raster and you can easily extract values using the raster package in R; here is an easy-to-follow guide (https://gisday.wordpress.com/2014/03/24/extract-raster-values-from-points-using-r/comment-page-1/).
The CRU dataset suggested by David Mendes is good but If you are looking for station dataset, you can find them on the Ogimet website (www.ogimet.com), a Weather Information Service. However, please note that this is given in the United Nations World Meteorological Organization’s Synoptic, METAR, and SPECI codes. To decipher these codes, please find the key to the codes here: https://www.nodc.noaa.gov/archive/arc0021/0002199/1.1/data/0-data/HTML/WMO-CODE/WMO4677.HTM.
I hope this helps!
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Numerous papers talk about creating latilong or lat/long blocks of 1 degree or 2 degrees. Is there a way to do this in ArcGIS? We have nest location data for three species of shorebirds in six states of the US, as well as the location and data for all the weather stations in those six states. We would like to find average temperature during the breeding season in those six states and see if changes in average temperature are correlated with changes in clutch initiation date in the shorebird species. One way we can do this (according to previous studies) is to create latilong blocks and use the data from the weather stations in those blocks where our nests are located. However, we are unfamiliar with how to do this in ArcGIS or if there is another way to do it. Any suggestions are much appreciated!
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Thank you everyone! I will look into these suggestions! I really appreciate your help!
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I am looking for a Matlab toolbox/function for the visualization of climate projection to get the similar figure in the attachment.
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Hello Onur,
Your can use the Climate Data Toolbox (https://github.com/chadagreene/CDT) with its funcionalities described here:
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Can we make ENSEMBLE data of Future temperature and precipitation from CMIP data (different models) available on the WORLDCLIM website?
I mean one dataset representing all the models for different SSP scenarios?
Regards
Gowhar Meraj
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check google earth engine data
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Hello everyone,
I am working on a project on maximization of water system performance in a river basin in Chile.
Now, I am looking for streamfow data for hydroelectricity production in the Laja river baisn. Could anyone please suggest a good source to download this data from year 1980 to 2010? Also, I am looking for turbine flow data for the same period.
Thank you in advance.
Regards,
Asmita
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When I go to https://www.ncei.noaa.gov/data/cmorph-high-resolution-global-precipitation-estimates/access/30min/8km/?C=S;O=A I have to continue clicking on a year>month>day before I can download something. Who knows how to download all 20 years, and who has a (R?) script to extract it?
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Thanks for you help, strangely enough I still get the "No module named 'netCDF4" warning after installation..
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Dear respected RG professionals, I'm doing my climate data with MKT (Mann Kendall Test) and SST (Sens' Slope Test) methods to test TREND and VARIABILITY of the basic climate variables (rainfall and temperature). Can I proceed to do these with climate data of 30 years but only from 5 meteorological stations? What is the minimum number of meteorological stations required for analysis of climate TREND and VARIABILITY?
Thank you in advance for your genuine and helpful answers!!!
Alem
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It depends upon the size of your study area. How big is your area?
Technically, it doesn't matter the number of stations to use in MK, but coverage of the gauge network and length of record will have an impact on the physical meaning of your result.
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I am currently working on climate data for my research. I got daily weather data for minimum temperature, maximum temperature, and precipitation for 35 stations and for 40 years (e.g., 1980-2020). How can I downscaling the data with 5 arc-minute spatial resolution and for different time slices (e.g., 2030-40, 2050-60, 2090-2100)?
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Hello all,
I am working on a WEAP model in a mountainous region in Chile. For this, I need data for snow accumulation gauge. The snow water equivalent data [mm] can be downloaded from the nsidc.org website in .hdf format. Can anyone please suggest me a way to convert the .hdf file to a csv file for WEAP? Is there other way to extract SWE in csv format like AppEEARS?
Thank you!
Asmita
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You can do it in ArcGIS. Watch for some tutorials on Youtube, e.g., this one below.
Further, I feel Dr.
Majid Farooq
may also guide you further in this if youtube is not able to solve your problem
Best of luck.
Regards
Meraj
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I read about CORDEX regional projections but I can't access the data files. Can someone suggest others regional climate models suitable for this area or provide a help on how to access the climate data for CORDEX. Thank you very much!
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Please, Chenghai Wang is your response a follow-up of Collins Kwame Oduro response or WRF provides another solution to my puzzle? If not, what is WRF and does this model provides resolution lower than 30km, my data has a resolution of less than 5km and want to perform future projections for the Congo Basin region. Thank you very much.
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Hello,
"CDO" is a LINUX based operation for evaluating climate data.
Could any one assists me by means of installing or utilizing CDO on Windows operation systems?
Best regards
Saeideh Baghanian
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You can easily use CDO in window 10 by installing Ubuntu's terminal as a window application in window 10. Kindly follow the six steps below:-
step1: Open your window 10 and go to search are and then search the word turn window features on or off as illustrated in image1 (step1) attached below.
step2: from the popup window resulting due to step1, Scroll down until you see Window Subsystem for Linux and check it (tick) then click ok and restart your computer.
AIM OF STEPS 1 & 2: Is to create an environment for using Ubuntu (Linux) in Windows 10.
Step3: After finishing to restart your computer then search for Microsoft store and then click the app store as illustrated in image 3 (step3)
step4: After opening the Microsoft store then search Ubuntu and then install the latest version as illustrated in image 4 (step4).
step5: Open the Ubuntu terminal (App) and then create your username and password and finally update the ubuntu packages by using the command sudo apt-get update as shown in image 5 (step5).
step6: then install CDO by using the command sudo apt-get install cdo
lastly:
If you will get this error after installing CDO
# error
cdo: error while loading shared libraries: libQt5Core.so.5: cannot open shared object file: No such file or directory
THEN USE THE COMMAND BELOW
sudo strip --remove-section=.note.ABI-tag /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
All the best, if you will get any challenges, feel free to share them here
PLEASE SEE THE ATTACHED IMAGES BELOW FOR GUIDANCE
Thank you
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Hello everyone,
I am currently working on my masters thesis to maximize water system performance in the Chilean Laja River basin under climate change. I need historical observed data for streamflow of the rivers Tucapel and Puente Perales. Similarly, I need snow accumulation data for the basin as well.
Could someone please kindly suggest, where/how I could find these data? Has anyone downloaded these data from internet. I would be grateful for any suggestions.
Thank you in advance!
Cheers
AS
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Dear Asmita Subedi , maybe you can find you the data you are looking for in the CR2 database: https://www.cr2.cl/.
Cheers
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I have arranged data according to AquaCrop text file format, which content Tmax, Tmin, Win-speed, RHmean and Rainfall.
Incomplete Series of Rainfall Data occur when I am trying to import Climate data, how to Fix this?
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It could be the years you put in do not fall into (or fit) the 30 year interval for rainfall climate data. Every 10 years a 30 year normal is released. https://www.noaa.gov/news/new-us-climate-normals-are-here-what-do-they-tell-us-about-climate-change
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Hi everyone
I'm looking for a quick and reliable way to estimate my missing climatological data. My data is daily and more than 40 years. These data include the minimum and maximum temperature, precipitation, sunshine hours, relative humidity and wind speed. My main problem is the sunshine hours data that has a lot of defects. These defects are diffuse in time series. Sometimes it encompasses several months and even a few years. The number of stations I work on is 18. Given the fact that my data is daily, the number of missing data is high. So I need to estimate missing data before starting work. Your comments and experiences can be very helpful.
Thank you so much for advising me.
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It is in French
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Currently, the UN climate summit in Katowice is taking place in Katowice. COP (Conference of the Parties) on climate policy on Earth. UN climate summits, i.e. COP (Conference of the Parties) are global conferences during which climate policy actions are negotiated. Poland twice hosted them - in 2008 in Poznań and in 2013 in Warsaw. In December 2018, the climate summit is held for the first time now in Katowice in Poland.
During this summit, conferences are held, discussions are held on the need to develop a sustainable development policy and the need for development of ecological, renewable energy sources in order to generate a reduction in greenhouse gas emissions in the future and ultimately reduce the average annual temperature rise on the Earth's surface. From the discussions it follows that it is necessary to develop eco-innovations, new pro-ecological energy sources, development of electromobility of transport means. It is necessary to develop and implement on a large scale renewable energy sources. In addition, it is important to increase the scale of afforestation, as forests and the flora contained in them absorb a large proportion of greenhouse gas emissions.
As part of this year's UN Climate Summit, the 24th Conference of the Parties to the United Nations Framework Convention on Climate Change (COP24), 14th Meeting of the Parties to the Kyoto Protocol (CMP 14) and the Conference of the Paris Agreement signatories (CMA 1) are held. About 20,000 people from 190 countries participate in the event, including politicians, representatives of non-governmental organizations, and scientific and business spheres.
Perhaps during this UN climate summit important and specific agreements, declarations and signed agreements on the reduction of greenhouse gas emissions will be taken. The present lectures show that in recent years the warming process of the Earth's climate has accelerated significantly and therefore, in the black scenario of future climate changes, the temperature on the Earth's surface can rise by 4 ° C to the end of the 21st century. If this happened, then the scale of climate-related cataclysms that are dangerous to humans, including droughts, floods, fires and weather anomalies in many places around the world, will increase many times. The problem is very serious globally and therefore a lot depends on whether international cooperation will develop in order to limit these problems and their negative effects.
In view of the above, I would like to ask you: Should you think that international cooperation should increase to reduce greenhouse gas emissions on Earth? In addition, another key question arises: how much of this international cooperation is possible, to what extent will real and effective measures be undertaken on the basis of the discussions and declarations undertaken to reduce greenhouse gases?
Please reply. I invite you to the discussion
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Call for Book Chapter
Call for Book Chapters "Book Theme: Microbial Bio-remediation - Sustainable Management of Environmental Contamination"
· 📷Rouf Ahmad Bhat
· 📷Gowhar Hamid Dar
· 📷Monica BUTNARIU
Goal: We are pleased to inform you that we are in the process of editing our forthcoming publication entitled " Microbial Bioremediation - Sustainable Management of Environmental Contamination" to be published by Springer Nature. We would like to take this opportunity to cordially invite you to contribute a chapter on the given below tentative chapter titles or other topics relevant to the theme of the book. Section A: Overview of Environmental Pollution and Microbial Ecology 1. Credibility of Biosensors for Monitoring contamination in different Environments 2. Major groups of microorganisms employed in bioremediation 3. Microbes in Restoration of Ecology and Ecosystem Services Section B: Microbial Solutions for Environmental Management 4. Perspectives of Microbial Inoculation for Environmental Management 5. Microbial inoculums for Groundwater Decontamination 6. Plant-Associated Bacteria in Ecosystems Functioning and Sustainability 7. Microbial metabolisms: Application in environmental decontamination and Management 8. Microbial degradation of Emerging Environmental Contaminants (EECs) Section C: Microbial Degradation Technologies and Remediation 9. Microbial Biotechnology: Energy generation approach from the environmental waste 10. Environmental Microbial Genomics in Sustainable agri-ecosystems 11. Hydrocarbon and oil-spill bioremediation 12. Microbial enzymes and their importance in the environmental decontamination 13. Microbial biotechnology for the production of the biodegradable plastics polyhydroxyalkanoates 14. Genetically engineered microorganisms for bioremediation processes 15. Microbial degradation of industrial pollutants from different environments 16. Bioremediation of organic and metal-contaminated environments Submission Deadline: 30th November 2021
Publication charges: Nil
Contact Details
Editors Dr. Rouf Ahmad Bhat (rufi.bhat@gmail.com)) Prof. (Dr.) Monica Butnariu (monicabutnariu@yahoo.com) Dr. Gowhar Hamid Dar (dargowharhamid@gmail.com)
Prof (Dr.) Khalid Rehman Hakeem
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I'm looking for NDVI data that I can use as an independent variable in models of antler asymmetry. I'm sure it's out there just like climate data but somehow I can't find a good source besides a gigantic list of files with incomprehensible labels and an extension I'm not familiar with. Would there be someone on this network who already used this kind of data and could direct me to the right source? Thanks.
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You can use the GEE app to get the NDVI data
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Dear colleagues
I would like to obtain the Monthly Soil Moisture Data(and some other gridded climate data) for the provinces of Thailand (for the last 20 years).
Could you tell me please,how i can get the full sample for each provice of Thailand (76 provinces)?
Thank you very much for your help
Yours sincerely
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For gridded climate data, there are a lot of sources. Some might be listed here: https://www.rccap.org/data/
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We have looked AOD data from aeronet site. However, we found a large amount of data is missing for different stations of Nepal. Do you aware of some satellite data for AOD over the regions of Kathmandu? If yes, please let us know the website for data download. Thank you.
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You can use the website of the Eurpean Center to get the required data
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Hi
I m working on climate change impact on water resources.
I have climate data for a mountainous watershed. The gauges are sparsely located.
Most of the time series I have examined are found to be inhomogeneous.
What should I do now? As accord8ng to literature, inhomogeneous series should not be used for further use.
Is there any procedure to remove the inhomogeneity?
Plz help
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Dear Summera,
I guess your question may regard to rough error removal of precipitation measurements that you called inhomogeneous. Rough error can come from different sources such as from human, animals, failed trees... I think if this measurements change a lot the your trend, you just avoid them (delete) or replace them by long-term mean annual data of the same day.
Hopefully it helps.
Best,
Quang
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Site-specific weather data is required in order to perform historical simulation of power plants and similar systems. A long record of information is needed to adequately capture the range of operating conditions. An excellent source of such data is the Global Surface Summary of the Day (GSOD) database maintained by the National Climate Data Center (NCDC) operated by the National Oceanographic and Atmospheric Administration (NOAA). Data from thousands of meteorological stations around the world are packaged in "tar balls" (LINUX zip files), one for each year, available at their site ftp.ncdc.noaa.gov/pub/data/gsod/ While these files provide daily values, there is enough information to infer hourly behavior using the method of Waichler and Wigmosta described in, "Development of Hourly Meteorological Values From Daily Data," Proceedings of the American Meteorological Society, 2003.
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Dear Dudley J Benton , it seems that the website (ftp.ncdc.noaa.gov/pub/data/gsod/) is not accessible. Can you send us an accessible link?
Regards.
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hi
i am new to climate studies.
can anyone plz tell that by how much resolution the climate data can be downscaled by using LARS-WG?
I want to increase resolution of 0.44 degree RCMs
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The following articles describe the downscaling using LARS-WG:
Hope they help!
Best regards,
Ebrahim
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I have a NetCDF dataset, and I want to extract the values for multiple locations. For this purpose, I used the "Make NetCDF Table View" tool. Instead of doing one by one with the"Make NetCDF Table View" tool, how could I extract the variables for several locations in ArcMap and save them as csv or similar format? I would be highly greatful if someone can help me in this regard.
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Given that you ArcGIS is licensed, you can use Multidimensional Tools (using Make NetCDF Raster Layer) in ArcToolbox to resolve your inquiry. You will need to select the particular data you want to extract from the set of data within the .netcdf data file. So, the first result will generate a raster as expected. After that you can extract location points data from the raster by using the Extraction Tool within the ArcToolbox by clicking "Extract Multi Values to Points" within the Spatial Analysis Toolbox section. After fitting all necessary data requirement, you request should be resolved.
Give it a try.
Regards.
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In the development of forecasting, prediction or estimation models, we have recourse to information criterions so that the model is parsimonious. So, why and when should one or the other of these information criterions be used ?
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You need to be mindful of what any one IC is doing for you. They can look at 3 different contexts:
(a) you select a model structure now, fit the model to the data you have now and keep using those now-fitted parameters from now on.
(b) you select a model structure now and keep that structure, but will refit the model to an expanded dataset (reducing parameter-estimation variation but not bias).
(c) you select a model structure now and keep that structure, but will continually refit the model as expanded datasets are available (eliminating parameter-estimation variation but not bias).
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Dear experts, I am new to SWAT and SWATCUP, I have climate data (precipitation and temperature from 1980-2017 but my streamflow observed data is from 2000-2015. I want to model in ArcSwat. I want to know if the observed flow data and the climate data should have an equal duration before swatcup calibration will run. I think the pcp1 and tmp1 file may be different from my input observed data during swatcup calibration. Or will this work and will the software run even for the different dates except match between 2000-2015? please I need your expert help and judgement soon.
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1- Model runs during 1980-2017.
2- You could calibrate the model for any days and/or months and/or years during these years.
3- To set up model, you do not need observed discharge data. You will use the observed discharge data in SWAT-CUP.
4- Also, you could calibrate your model for different periods for example 2000-2004, 2006-2007, 2008-2010. I mean, any period during 1980-2017 is possible.
5- It could be better (and maybe necessary) to have some years for the warm-up period (e.g. 3 years). If you use 3 years (1980-1981-1982) you will not have the output for these years.
Good luck,
Mamad
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Hi,
Could anyone explain me about your experience with tuning qstep to improve climatic data?
I'm using qmap in R.
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Quantile mapping (QM) techniques are among the most important and popular bias correction methods. ... This study aims to shed light on the general abilities of QM methods in correcting the bias of both temperature and rainfall variables, both of which can have direct and indirect impacts on water resources
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Dears
I am wondering what is the best website that provides accurate historical climate data (eg for Saudi Arabia)? I found several sites but I suspect some of the data are inaccurate.
Best regards to you
Abdullah
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1. NASA Power Access Portal
2. Check the NOAA "Global Historical Climatology Network" (GHCN). Access via ftp (ftp://ftp.ncdc.noaa.gov/pub/data/ghcn/daily/).
3.Check SERVIR ClimateSERV (https://climateserv.servirglobal.net/).
Daily precipitation of countries and states is available (1981-Current). It also allows entering polygons in GeoJSON format.
Please do R and D and enjoy.
Best Regards,
Harish Bahadur Chand
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I'm looking to find the mean annual temperature (ºC) and mean annual precipitation (cm) of specific locations (globally) over the past 10 years. I've been trying to find a single database to standardize my research but so far have had no luck. I'm looking to assign the climate data to sample sites which have lat and long data which I realize is a lot to ask for but even databases that can give averages within the ballpark would work great. I appreciate any insight, thank you!
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Hi Danyel Yogi , You need to be specific that Global climate data of what places you need by coordinates database. Then you can get those from different satellites.
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Authentic climate data that can be used in research.
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Hi,
Except synoptic stations, does anybody know any website/software that gives the climatological data of unequipped places?
I am aware of using interpolation methods, but, I am looking for a method that extract data for a desired location numerically (like an excel format etc,.).
Thanks,
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Interesante pregunta, sería muy bueno poder acceder a sitios o software q aportaran esta información
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If possible please suggest for freely available software name with available link, because I will be use for Academic purpose.
Thank you
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If it is 3D data then it's not possible. If it is station data that is saved as .nc file then you can use python. It can take at least 5 min to read and save it to csv or excel. You can call me tomorrow at around 12:00.
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Hello friends,
I am looking for future climate data.
Is there any website providing free downscaled data under different scenarios?
Cheers,
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You can found the future climatic data on Worldclim.
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Working with climate/Geographical data, there is some moment you definitely need to analyze data with programming language or software tools. In that case which one you will prefer more to do that task?
  • Python
  • R
  • Matlab
  • QGIS/ArcGIS
  • Other( Please mention the name with details)
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ARCGIS AND ERDAS
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I am from South Peru (Arequipa), I need to make a Raster of Erosivity but  I only have climate data like precipitation, some ideas?Does somebody know the procedure? It's for work with InVEST models (Sediment Retention).
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I have been able to obtain data of averages for the whole of India from the IMD website and also global datasets over a large timeframe however I cannot seem to obtain individual state/station data.
I am looking to get data that shows trends across different areas of India over the period 1985-2015, therefore data from individual states or weather stations would be much more useful. These exact years are not necessary but data covering this approximate period showing annual or seasonal values would be very helpful.
Does anyone know where I might be able to get this?
Thanks!
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Hi Alice, I just came across your question.
This link may prove beneficial to you or anyone else looking for similar data.
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EDIT: Up to the literature suggested in the answers, IT IS NOT POSSIBLE because they are required at least some calibration data, which - in my case - are not available.
I am looking for a technique/function to estimate soil temperature from meteorological data only, for soils covered with crops.
In particular, I need to estimate soil temperature for a field with herbaceous crops at mid-latitudes (north Italy), but the models I found in literature are fitted for snow-covered and/or high-latitude soils.
I have daily values of air temperature (minimum, mean and maximum), precipitation, relative humidity (minimum, mean and maximum), solar radiation and wind speed.
Thank you very much
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