Geomorphology - Science topic

Book Theme: The rivers of India, vital lifelines that support agriculture, industry, and drinking water needs, are facing unprecedented challenges due to climate change and human activities of the Anthropocene. The impact of rising temperatures, altered precipitation patterns, and increasing frequency of extreme weather events is profoundly affecting the geomorphology, hydrology, ecology, and socioeconomic fabric associated with these waterways. This book project (edited volume) explores how climate change is influencing Indian rivers (impact) and outlines potential strategies for mitigation and adaptation (resilience). It also covers the impact of various human activities on the fluvial morphology, hydrology, and riverine environment. Yet, as we step further into the 21st century, these vital waterways face unprecedented challenges. Reviving and restoring fluvial ecosystems is essential for reviving the health of India's rivers. This involves rehabilitating wetlands, reforesting riparian zones, and restoring natural river channels that have been altered by human activity. The need to reimagine and revitalize India's rivers has never been more urgent. To ensure their sustainability and health, a comprehensive blueprint is essential—one that balances ecological preservation with socioeconomic development. Research initiatives from a range of academic perspectives, including geography, biology, hydrology, geomorphology, environmental sustainability, environmental science, water economy, sociology, and political geography, are required for the book project.

How to prepare

SL gradient index = (change in elevation/change in length of river)*L(river length), how can we calculate the L values?

I'm doing a teaching internship, and I need to prepare a class on the topic: 'Glacial Geomorphology and Climate Change and its Landscape Changes in Brazil, focusing on Brazil - Southeast.' I believe I need to focus on the relationship between climate change and the change in geomorphological landscapes - I imagine future ones. Could you assist me in indicating materials for me to study and prepare the class?

Prior various seismic events stress accumulation tajkes place .Its symptomatic siganals are displayed in the tectin region by subsurface condison varaion as in Geology Geomorphology ,Thermal emissivity , and gravitydata. As well as there are EM signals displaying anomalous variation.But do we have 500 or more EM data available deciphering past historical features and associated tectonic stature in the region of sesimicity?

Hi all,

I am looking for a detailed online source of maps of desert areas in North America produced annually since 1979, freely available (ideally). Could anyone point me in the right direction please?

Beyound the tectonic activity, how any human activity can lead to, or reinforce a siesmic activity?

We are working on a manuscript for groundwater potential by considering different raster layers like Geomorphology, Geology, Soil texture, Elevation, Slope, Drainage density, Lineament density, Topographic Position Index, Topographic Wetness Index, Profile curvature, etc. Some of these parameters like Geomorphology, Geology, and Soil texture are qualitative variables while the others are quantitative variables. Hence, it is difficult to perform a collinearity test of these variables in their original form. So, I thanks in advance the experts in this field to help me in finding out the solution. My question is whether there is any specific technique to perform a collinearity test of taking both qualitative and quantitative variables? Whether the original data be resampled then a collinearity test be performed?

I identified a portion of a small river river (~10km) in my region that went through significant physical changes after a recent forest disturbance, with meanders being cut through and new erosion and deposition areas. I would like to map river geomorphology and quantitatively assess physical changes through time to evaluate the impact of the disturbance.

Can you suggest published methodologies?

More precisely, do all types of winds contribute to shaping the landform? What does the wind need to be an essential factor in the wind processes of erosion, erosion, transportation, and sedimentation? How is it different from winds that do not affect the Earth’s surface and do not contribute to shaping geomorphological processes?

Firstly, please take a look at the image below. I want to create longitudinal river profiles of the main channel and its tributaries within the same watershed. I'm looking for information on the techniques and materials needed to accomplish this.

Thank you so much.

I am a geology student and the fields I took an interest in are remote sensing, GIS, and geomorphology. I want to study the past and post-geomorphology of a nickel mining claim. Can anyone recommend a good parameter/s to consider and related literature that I can anchor it with?

Physical geography is includes the study of the earth spheres. Geographers usually working on geomorphology, climatology and biogeography. Why they don't work mostly in oceanography ?

Discussion.

I have started exploring hydrogeomorphology of river catchments in northern hemispheres and looking for suggestions/reference articles focused on Machine Learning and Deep Learning based prediction of changes in channel morphology, suspended sediments, hydrological response of basin to climatic factors. A draft paper has methodology section has capacity to include the above mentioned technique, although physical hydrological models such as Hec HMS, HecRAS and SWAT have been used and I wanted to have a comparison between ML/DL based modelling and Physical hydrological modelling as well as totally remote sensing based extraction of hydrological characteristics.

Do reach me if you have interest in the domain.

Regards

We are looking to identify characteristics of a river from drone images in ArcGIS pro.

I have been able to successfully delineate the wetted channel, riparian zone and and wood material based on hue, saturation and value in ImageJ but we are hoping to find a similar tool in ArcGIS. I have investigated the classification tools and they seem to either be designed for specific jobs (e.g. NDVI), rely on a training dataset (e.g. supervised classification) or segment into groups (but this provides too many of the wrong groups and we cant specify the colour characteristics of each group!).

We are looking for a tool which allows you to threshold the images based on known values of RGB or HSV but maybe this doesn't exist?

Thanks for your help!

Rich

Provide me information for obtaining Geological, Soil, Geo-morphological, Lineament map for Latur district, Maharashtra, India.

I need to simulate GBHM but I am confuse that which software or system would be good.

Can any one please explain that?

GIS

Remote Sensing

River Studies

Geomorphology

Hello, I plan to use a hunting camera for monitoring of geomorphological processes on daily basis. My problem is finding a camera that, in addition to motion detection (which I don't need), has the ability to take time-lapse photos. More precisely, I am interested in a model that I could program (time interval) so that it takes a photo once every day at the same time or, for example, every other day at the same time (for example, at the selected hour when I have the most natural light at the location, ). I currently have a camera that can take a photo every 60 minutes which drains the batteries very quickly, especially during cold weather (and produces a lot of not needed photos...). I would appreciate someone with experience recommending a model according to the needs I mentioned; no wifi or mobile connection required but if it can not be avoided not a problem. Thank you.

Look at the map of the Sea of Azov (https://gkd.ru/408019a-glubina-azovskogo-morya-osobennosti-i-interesnyie-faktyi).

Additional information in the explanations to my questions: 1. Are hydrodynamic barriers capable of creating sand islands and underwater shallows? 2. Is there any reason to doubt that the geomorphology of shallow waters depends on exogenous processes (storms)? 3. Why are almost all non-aqueous and underwater sand accumulative forms rectilinear and have angles of only 0° and 270°; 17° and 287°; 35° and 305°; 45°?

Within the paleoenvironment, changes take place in sea level, tectonics, geomorphology, pollen, temperature, rainfall etc. These changes take place in time (range of years, specific year, or season in a year) and over different areas (locally, regionally, and globally). I'm looking for a way to collate my research where I can build and keep track of these changes in time...while keeping track of the sources. In essence, a database with my input.

Is there software or a database template for this? Spreadsheets don't work for this and I'm in the middle of research to build my own database from scratch.

Thank you

there are many countries which have challenges with dust storms. maybe some of these dust storms are salty and have different methods for biological performance. Certainly, these countries and their researcher's were applied some methods for stabilize and control of dust storm. i would like familiar with methods and will be grateful you if introduce me some article, guideline and photos.

In our last monograph "A new paradigm of formation of accumulative relief in shallow areas of oceans and seas" (Ukrainian), the exogenous theory of the formation of underwater and above-water accumulative bottom relief forms is called into question. Look at the photo of the strait between the Sea of ​​Azov and the Black Sea. In the Sea of ​​Azov, the level is higher (two rivers flow into it) and storm surges often occur both from the north and from the south. Very often current velocities exceed 100 cm/s. Based on the exogenous theory, there should not be sandy islands (spits) in the strait. They exist contrary to the exogenous theory of the formation of the bottom relief of shallow waters. The storm theory of bottom relief formation cannot explain why the accumulative bottom relief forms are stable for hundreds of years. This can be seen by looking at the bathymetric maps of the Sea of ​​Azov made 200 years later. Please comment and ask questions.

In shallow regions near the coast, sediment transport models require some geomorphological properties of the sea bed. Is there any database that contains d50, d16, d84, some cores to know the kind of material in layers?

How to perform sensitivity analysis for dam/reservoir site suitability mapping? if we have considered some parameters (i.e. elevation, slope, distance to the river, geology, geomorphology). So, by using AHP we have done overlay analysis in Arc GIS to develop a suitability map. However, if the dam or reservoir is not constructed, how we can validate the model/resulted maps.

Thanks

Are there any iPad pro apps for GIS mapping and analysis? Thanks

As to deal with micro scale problem we have to constricted by some political or administrative boundary , which may conflict with regional aspect or may not be accurately authenticated with overall geological, geomorphological and geographical perspective. Again natural scale regional focus may dilute the specific spatial issues . That's why the question arises.

I computed different models with 3 variables and there interactions using procD.lm function( so 7 models). Then I would like to compare my models to choose the one which explain most of the variance. I thought to use stepAIC function or a similar function adapted for procD.lm format, but I didn't found any. Any tips ?

Thank

Is there a way to flip the skull? I need the skull to be faced in the opposite direction.

I am using this code string (in r-studio): plotRefToTarget(PCAf$shapes$shapes.comp1$min, mshf).

mshf is the mean shape.

Geomorphology, Geography, Geology and Coastal

I'm looking for some information about mountains in the Andes of Colombia (cordillera central, occidental and oriental) such as geomorphology, width, relief and climate conditions.

Thanks.

May be seems an easy question, but i emphasis didn't see an integrated definition!

So far, there is no comprehensive definition for desert that is accepted by most of the experts and Different Sciences Scientists. Depending on the conditions prevailing in their country and culture, the people have different perceptions and definitions of the desert.

For example, the French consider desert, a Large areas covered with sand dunes that camels and camel traveling there. Russia's; vast prairie sand with Tamarix trees and pastures of the shepherds Turks and Mongols in the desert supposed to remember.

Americans see a sharp rocky meat plants, desert visualize in their minds and in language Uighur desert meaning "journey without return” .

Philosophers describe desert as mysterious environment, because it is the origin of the world's major religions (Judaism, Christianity and Islam) . biologists refer to as the laboratory environment because these places are preserved fossils of plants and animals to survive and adapt the best possible there.

Botanists believe deserts are areas with little vegetation, with very poor species diversity and plant density.

Ecologists believe, deserts are ecosystems that production plant tissues is minimized and chemical energy production are poor.

Soil Science say deserts, are areas whit low potential production, These soils typically include Low permeability, low organic matter, salt accumulation in the surface layers, clay, less developed and less developed soil horizons.

- Geologists believed, desert are areas with saline evaporite formations (gypsum and salt).

- climatologists say deserts are areas with high temperature and low precipitation ( less than 250 mm rain )

- Geomorphology scientists known deserts as Playa, sand dunes hills, Badland, rocky lands, alluvial fans, and Kalut, Glassy, and so on.

So, as you see, there is not an integrated definition for desert that accept and agreed by all scientists and specialists.

Dear Colleagues

What is slope spectrum and how is it useful for landforms differentiation?

Thanks for help in concept clarification.

With best regards

Ijaz

Hello everyone,

I'm studying about geomorphology for dissertation, furthermore i have doubts about difference of terms geomorphometry and quantitative geomorphology and meaning.

Dear researchers

The provisions of ASCE 7-10 states that New Next Generation Attenuation Relationships (NNGAR) has been used in the process of Probabilistic Seismic Hazard Analysis (PSHA) to prepare seismic hazard maps provided in United State Geologic Survey (USGS).

Now, I want to know what is new next generation attenuation relationships and how are they different from other typical attenuation relationships such as Campbell, Douglas, Godrati, BJF, etc?

I am using UAV data for mapping geomorphological processes in different environments, from coastal and estuarine subtropical areas to subpolar and polar glacial landscapes, and I want to profit from the huge amount of information in such high-resolution datasets. So, I was wondering if there are good free options for object-oriented image classification, alternative to eCognition for example?

trying to explore new probably mineralized areas depending on the previous knowledge and data acquired from a mineralized ones around them.

Data collection, river flow measurements, three height, cross sections of rivers, velocity of water flow, identification of rocks, geomorphology etc.

I am searching for any landscape-scale indices that can be used to predict spatial soil moisture variability such as the range of slope gradients, slope aspects, plan, or profile curvatures.

What is the difference between agent and process in geomorphological studies?

Factor

I want to know which quantitative morphotectonic analysis could use as a tool and method for detecting deformation patterns in coastline and geomorphology of the coasts. And know about the relation between morphotectonic and geomorphology in coastlines.

Hi,

I am working on the analysis of landslide causative factors. Generally, while generating landslide hazard models, we make a random selection of variables. We take into account the geology, geomorphology and other terrain conditions to choose these variables. How to check the statistical significance of these parameters?

Thanks in advance.

Geomorphology is not a science. Unlike physics and chemistry it has no empirical basis. No one measured stream sediments or mass wasting over a century, which should have been done in hundreds of locations, under all climates, topography, degree of degredation, etc. It is based solely on experts. In the Sierra Nevada, work like yours is typically off by 2 to 5 orders of magnitude from constraints imposed by field evidence. I'm a serious geomorphologist; been one since 1968, and it takes decades to get comprehensive results. Geomorphology is a belief system, like Christianity, and it's interesting to see how each evolved over time. OK, I'm old. Am finally going to publish a very abreviated, if lengthy paper, on history of Sierra Nevada uplift based on Late Cretaceous to Eocene sediment remnants and Oligocene to Quaternary volcanic remnants in the range. There are about 300 sites.

Can classical geomorphological concepts such as peneplanation or retrogressive erosion be quantitatively understood? Old mountain ranges such as the Appalachian or the Urals seem to retain relief for >10^8 years, while subglacial fluvial valleys under Antarctica are preserved under moving ice of kilometric thickness since the Neogene. What controls the time-scale of topographic decay?

Hello:

I'm studying (neo)tectonic geomorphologies associated to the Liquiñe-Ofqui Fault Zone, Chile, using airborne LiDAR data.

Please, may someone recommend to me some useful papers, books and/or keynotes for this?

Thank you!

Sebastián

I am working on Ririwai ring complex using aeromagnetic and aero-radiometric data. I have generated different maps but i need to generate the temperature of formation or curie temperature of each rock unit to augment my conclusion .

As part of my proposed research work on gully erosion, the contribution of subsurface flow components for the total erosion at the gully mouth has to be known. Subsurface flow components of soil water and groundwater were planned to address using isotopic mass balance approach. Even though it depends on the area, some publications showed that soil piping plays an important role on subsurface flow and erosion. Therefore, I'm wondering how can I measure the flow and erosion amounts from these soil pipes mostly found on the walls of active gullies.

A correlation of the concentrations of SiO2 versus Zr for a suite of basalts show a progressive increase in SiO2 relative to Zr content. Where is the zirconium coming from being a low temperature mineral?

Do you know an article or source for evaluating the river's geomorphological quality?

Hello,

do you use smartphone apps (Android) for collecting field data?

Up to now I used following:

Orux - for preparing offline maps from WMS as mbtiles,

Locus Map - for collecting data and georeferenced photos,

FieldMove Clino - for collecting geological data,

Mobile Topographer Free for work in local CRS and WGS conversion,

GPS Status PRO - for sensors calibration and handling A-GPS data.

The best experience I have with Locus.

Do you use anything else?

I asked a similar question but thought a different question headline would help get people to answer. I am working on a new publication trying to explain marine geomorphology of a reef system. I wanted to make a series of images showing how the geomorphology may have changed with changing sea level fluctuations. Does anyone have suggestions for programs I can use to make something like this? I attached some suggestions for what I am trying to do but I am not sure what program to use for this. Thank you.

I have been reading tens of articles about automated landform mapping methods. However, articles don't give the detailed information about the steps which are taken. How can I implement the methods in arcgis or other open source software? I try to educate myself I need a manual or tutorial or lecture.

I understand that the Hurst exponent of the Gaussian white noise is equivalent to 0 theoretically, because of the definition of fractional Brownian motions, fBms.

Why do some papers say that the exponent is -0.5, not 0?

Hello! Please help to find a simple cross-shore sandy beach evolution (erosion+accretion) model for using in day-week scale (i had initial and intermediate profiles (once at month), and 3 hr forcing factors - wave height, period, wave length etc.

I need to estimate beach dynamics between my surveys (primary for getting beach width and slope).

Thanks for your advice!

What satellite images/bands should I use for this purpose?

Hi,

does any body know of an open source implementation of the geomorphological unit hydrograph? Actually the most relevant part is the derivation of the unit hydrograph based on the Digital Elevation Model. So likely it is a GIS routine to extract the respective parameters.

These photos taken at Sandstone layer . Please can somebody help me in the identification of these concentric and parralel laminations ? And which is the origin of this process ? NB : outcrops located on the coast influenced by marrine erosion.

Please, i'm looking for a copy of a Book : "Principles of Alluvial Fan Morphology ( Dan Bowman )", can you help me to find it ??

We have a fault system expanding on tens of kms with more than 1000 m of altitude difference between its eastern and western ends the western being the lower part. Is it exagerated to infer that the fault works as a water conduit bringing water from the eastern mountans to the western plain? Provoking the assotiated geomorphological phenomena due to water circulation? These phenomena are evident. Does the fact that assuming the fault’s role as a water conduit needs a proof?

Dear RG experts in Earth Science and Geomorphology

Upper part of the topographic slope is "convex" while lower part is "concave"; what are the factors shaping such a topographic slope morphology?

Regards

Ijaz

There is a project plan to provide a 130m deep well in this area but I am concerned about the transmissivity of the underlying granite. I have no info on the condition of the rock, or any aquifer it contains, potential yield etc. Any evidence as to likely success in this formation would be welcome.

I am writing a town paper on the above topic and I am searching for new published papers on the topic

Water bodies and Topo Maps

Hi. Maybe someone know any publications containing information about the morphological division (sub-unit description) of the coastal foredunes and attached sea beach. I found only coarse units in coastal geomorphology terms like "lee\windward slope", "dune crest", "dune foot", but nothing about more fractional zoning. Blowouts are described as "blowouts" without any sub-uniting. Also with the beach - its possible to find some phrases about "berms", but nothing concrete, with descriptions or definitions of their borders ets.

I will be conducting a cost-benefit analysis of the impact of the freedom space river managing approach in Québec.

The first and only example I have in hand is of: Thomas Buffin-Bélanger, Pascale M. Biron, Marie Larocque, Sylvio Demers, Taylor Olsen, Guénolé Choné, Marie-Audray Ouellet, Claude-André Cloutier, Claude Desjarlais, Joanna Eyquem, Freedom space for rivers: An economically viable river management concept in a changing climate, Geomorphology, Volume 251, 2015, Pages 137-148,

ISSN 0169-555X, https://doi.org/10.1016/j.geomorph.2015.05.013.

I am looking for more papers and ideas in that regard.

Thank you for your collaboration!

-Cherine

This is more an update, not really a question. But did you know that Harris et al. (2014), doi:10.1016/j.margeo.2014.01.011) have done a great job with making a worldwide map of marine geomorphology? The map may be downloaded (as zipped shape files) from http://www.bluehabitats.org/

I am interested to know the geomorphology of the chattisgarh region. specifically the places: Kanger, Dantewara, and Bastar. If anyone has something related, I'd welcome the help.

Thanks in advance!

The best research I have carried in my whole life has been finally published! Here we use some of the current most advanced statistics to model landslide occurrences.

I would even dare to say that it is one of the most complex and complete statistical applications in Geomorphology. I would have absolutely not been able to do it without the other two co-authors and most of the credit should go to them. Nevertheless, here we are online with Lombardo et al. (2018b)! Enjoy the reading at the following link:

http://rdcu.be/GRh8

In general, the term 'geological complexity' is used qualitatively. Are there any indicators, which can quantify the complexity? Or how the complexity of terrains be compared?

Hello! I am looking for a city that is situated on one of the tropicals or that experiences a tropical climate that has a similar geomorphology as my hometown of Athens, Greece for a possible comparative study for my dissertation. Athens is nested in a plateau surrounded by 3 mountains and lies near the sea. It's elevation range according to wikipedia is 70.1m to 338m. Thank you in advance!

Dear RG colleagues

I want to know which geomorphological features/landforms are developed from each type of following rocks by exogenic processes:

1. Volcanic rocks

2. Plutonic rocks

3. Sedimentary rocks

4. Metamorphic rocks

Thanks for valuable comments and feedback.

Regards

ijaz