Urban Climatology - Science topic

Hello Community. I need your help! I want to write Bachelorthesis in field of city research/ecosystem services/climate change and adaptation. I still have no specific research question. So if someone can advice what is better and more important to research at the moment in these fields, i would be very grateful! It will be a huge help!

As a number of US city planners contemplate the removal the highways from their metropolitan boundaries with a view to restoring long lost neighbourhoods are we looking at the post car era?

By the mid century gasoline and diesel power cars will be all but extinct. A few of them, like veteran biplanes will still be seen in heritage centres but the hundreds of millions of them that now inhabit the planet might be gone.

Is the highway and the car soon to join the stage coach and the pony express as a memory?

I'm doing a theses doctoral with the aim of the investigation is the analysis of the urban heat island of the urban area of Girona. I'm doing thermal transects in differents moments of day, noon, sunrise, afternoon and night. Most of them I made with pedestrian way method. Other transects I made with car. My question is: Are there scientific papers with thermal transects made in past in a pedestrian way or the pedestrian way is a new method in urban climatology?

I am performing mapping of urban up sprawl for 5 cities in Pakistan using advanced geospatial methods with satellite imagery for 25 years (1995-2020) with a 5 year interval. Can someone enlighten me how to mark a reference years for tracking changes and what are the pros and cons?

I have following options.

a). Mark present year as reference and track changes backwards

b). Mark 1995 as reference and track changes onwards.

c). and other option you may suggest?

We observed that in the simulations performed with the ENVI-met model there is a strong influence of the winds on the air temperature in the areas from the windward edges, resulting in very high air temperatures, even with the use of nesting grids. I would like to know if there are papers with this discussion and how these distortions can be minimized.

More than half of the people in the world now live in cities and this proportion is expected to continue to increase. Global Climate Change (GCC) and Urban Heat Island (UHI) intensification are making cities hotter places to live .

Thus, the need of an organized and comprehensive methods for sustainable urban design is considerable.

At Present i am working on Building Aerodynamic, i have modeled a group building models and analysed in CFD. Now, I want to verify my result in wind tunnel. I am getting problem in scale down model according to non-dimensional analysis, to match Reynolds number for model and prototype.

 vehicle speed and air pollution in street canyon

Looking for a free softwar that can calculates PET indices from given inputs.

In cities where pro-environmental values for sustainability are missing, e.g., cities where car-centric lifestyles, energy consuming large conditioned spaces, mega-structures and international branding appear to be the preferred trends, what role/scope does individual (unit) sustainability play in such context.

Modelling pollutant dispersion in urban centers need street level meteorological data. Whereas much of the research in this field is carriedout using met data from stations far away from study area or with general meteorological details.

Are there any urban air pollutant studies conducted using street level met data by considering the canyon effects of buildings.

I appreciate if anyone Can Suggest / Provide me with a resource that I can use to get a list of C3 & C4 plants in Egypt?

Previous model investigations both on Beijing area and on the outskirts pollution have shown that based in US EPA Models-3/CMAQ about 34% of PM 2.5 on average and 35-60% of ozone  - in the Olimpic stadium site - can be attributed to sources outside Beijing. Our activity using passive sampling (at present still unpublished) has clearly shown a potential for a sensible influence  for e.g. SO2, O3, NOx and NO2. I am not aware that other activities employing passive sampling having the purpose to discriminate both types of source of pollution, has ever been performed.

I am conducting research to evaluate the effect of “ water flow” and “artificial open water surfaces” on urban micro-climate and also mitigate the maximum urban heat island effect. Can I use this software for this purpose?

What is the most practical micro-climate model for examining the relationship between urban design parameters and outdoor thermal comfort (considering the effect of wind, mean radiant temperature and air temperature in calculating PET). I have found many softwares, I am not sure which would be the best for my research question. (Envi-met, Rayman, SOLWEIG, Townscope, Urbawind). Please share your experiences. Thank you.

What dose density and composition of urban heat island mean, and how can measure it using MODIS?

Climate change  a phenomenon being talked about world over and the contribution of human kind. As most of the populations reside in cities . What are the ethical issues the cities and citizens have to follow keeping this phenomenon in view,

I am interested on UHI's studies, especially in tourist cities to observe if touristic activities could cause modifications on the UHI's features. So I am looking for studies about this. 

What are the current researches on environmental responsiveness with respect to urban form and/or urban built environment?

What are/could be the parameters of environmental responsiveness in and around buildings/ built form? especially at community/neighbourhood level.

I am looking for the water bodies micro climate studies in tropical regions and how the water temperature variation can effect the surrounding micro-climate and a proper simulation software to simulate the water bodies micro climate accurately.

Variables that are to be handled primarily (as per my understanding) are Solar Radiation and its corresponding shadow due to buildings and trees of adjacent area, Wind profile disturbance due to buildings of adjacent area, etc., In addition to this, Turbulence, moisture etc., will also come into picture.

Also the Lateral Boundary Condition that one has to use also plays a key role which may need info on the whether the area is homogeneous or has lot of variability.

I would like to discuss upon the numerical schemes that one can use to merge the simulation results to give combined area simulation results.

what are the major prospects and challenges of developing water resilient cities in South Asia?

What kind of institutions need to be arranged for designing and developing water resilient cities in context of SA?

I am Aeronautical Engineering Student, at present working on Urban Heat Island Effect analysis in CFD. I want to validate my result, for that i plan to take aerial thermal photo from UAV but now cost is little higher for me. So, I plan to go with Wind tunnel testing. In this case i didn't get any reference journals and i have doubt in make similarity and is it possible to study radiation effect.  

Sunshine Hours data

Specifically, I want to determine if green roofs can lessen the Urban Heat Island effect, even if it's only on a micro-scale (not whole-city-wide). I'll be conducting this study in Metro Manila.

Any help would be really appreciated. Thank you very much!

especially in the areas of data collection

So far I mostly know urban climatology books from my own country (Brazil) or the great classics (such as Oke and Landsberg). I have read many papers recently, but I would like to know your suggestion of a relatively recent book on this topic which covers most of the urban climate-related phenomena such as the UHI, floods, air pollution, etc. (such as "Urban Climatology" from Brazel & Quatrocchi, 2005). Thank you.

I am using Envi-met 3.1. This version just gives me T mrt ,not PET.

When I use ENVI-met v3.1 to compare between deep canyon H/W=5 and Shallow canyon H/W=1, I observed that the air temperature at daylight is similar with literature review about deep canyon has low temperature from shallow canyon as shown in attached file, because the effect of wall height which decrease of effect from direct short radiation. At night the air temperature in deep canyon is lower than shallow canyon, literature review which has studied street canyon ratio proved that air temperature in deep canyon in night is higher than shallow canyon, because SVF is low and low air velocity in deep canyon to release heat from walls.

Can I appreciate a change in the PMV if I put a shallow pool (it is constructed by setting only the uppermost grids to "water") in an open area? Or should I use "water" only as a complete column to do this?

I have fifteen heights data. Supposing that zm has nothing to do with d - who can give me a method to calculate them simultaneously?

I am aware that there isn't any vegetation scheme in CFD package. So the modeled area in ENVI-met should eliminate any type of vegetation.

A city of 100,000 has more than 50 ponds. How to measure its implications on climate change adaptation?

As above.

I wonder if anyone have an idea of index that classifies comfort based on meteorological and air quality parameters.

Thanks

We are planning to do an evaluation of these water surfaces on thermal comfort. Of course we will measure air temperature, relative humidity, and wind speed. For mean radiant temperature we can use globe temperature. However, using this methodology to extract Tmrt, does anybody know to what extent the little drops of spray water influence the globe temperature and thus in correct derivation of Tmrt?

Additionally, has anybody evaluated their effect in urban areas? Do you know any literature references?

I have in mind using the fusion of dynamic and thermodynamic meteorological models to do simulate and predict the intensity dispersion of air pollution. the model would be hierarchical structure from macro scale to micro scale, which using some methods should be connected to each other as a chain.

Reviewing the literature shows the relationship between urban sprawl and regional climate change but I am looking for the most appropriate indicators!

I´m looking for something like the CORINE Land Cover Project for the countries in Europe.

Until now I've tried to work with the data of the Plan Regulador Communal, but its not the right instrument for my work.

I am starting research in the field of trace gases and I wanted to make a comparative study of satellite data with ground based observation as well as their percent contribution. For this purpose, I have chosen ozone measurements. What I understand from literature is that first we need to get total columnar ozone data vide OMI and subtract the value of stratospheric columnar ozone vide MLS from total columnar ozone to derive tropospheric columnar ozone. Thereafter I could calculate percent contribution of surface ozone to tropospheric columnar ozone and tropospheric columnar ozone to total columnar ozone. However, for this purpose I need stratospheric columnar ozone and total columnar ozone, of which I have total columnar ozone but I am unable to derive stratospheric columnar ozone. Can you please suggest how to derive stratospheric columnar ozone without writing program and downloading the data to MS-Excel?