All Questions
Tagged with precipitation hydrology
10 questions
2
votes
1
answer
668
views
How to find out which areas are affected by flooding due to heavy rain?
I'm working on a little project to visualize affected streets of flooding due to heavy rain. I already got a DEM for my study area and filled the depressions with r.fill.dir.
Since I never worked on ...
- 21
-1
votes
1
answer
899
views
How can I reduce the size of shapefile (.prj, .shx, .shp) up to 8 MB? [closed]
It is sub basin photo which I want to upload to CHRS so that I can to download satellite precipitation data (https://i.sstatic.net/EQt3v.jpg)
- 1
8
votes
3
answers
2k
views
Locate wet patches using DEM
I'm searching for a way to determine the location of wet patches, after rainfall, in a DEM. By this, I mean puddles.
We are investigating the best locations to locate paths for recreational use. ...
- 81
1
vote
2
answers
339
views
Interpreting GLDAS 2.1 precipitation data
I am trying to use the GLDAS 2.1 3-hourly precipitation datasets available at:
The dataset is documented here:
https://hydro1.gesdisc.eosdis.nasa.gov/data/GLDAS/README_GLDAS2.pdf
The data is ...
- 1,330
1
vote
0
answers
176
views
Open-source tools for run-off depth calculation
I am working on modeling surface run-off (in ArcGIS 10.2) due to a rain event (e.g., 5 year rain for a duration of 30 mins.) over an approx. area of 30 km2 for which I have a DEM and necessary soil as ...
- 51
1
vote
0
answers
620
views
Depth of run-off water [closed]
I am working on modeling surface run-off due to a rain event (e.g., 5 year rain for a duration of 30 mins.) over an approx. area of 30 km2 for which I have a DEM and necessary soil as well as land-...
- 51
1
vote
1
answer
1k
views
Using rainfall data (raster) as an input to determine stream lines in Arc Hydro?
I was wondering if it is possible to use rainfall data (raster) as an input to Arc Hydro for determining stream lines?
I am learning Arc Hydo and have gone through a couple of tutorials. As far as I ...
- 11.2k
1
vote
1
answer
750
views
How to use ArcMap for HydroPower Potential
I am trying to determine the sites for small hydropower. I have a elevation dem, rainfall data, Curve number data (from soil and landuse shapefiles). I have already used the DEM to fill sinks, find ...
- 11
6
votes
5
answers
9k
views
Calculating Runoff / Streams using DEM in ArcGIS
I am just curious about the workflow that many of you use for runoff/stream analysis using a DEM and create a "water network" from the results in ArcGIS 10.1? I know the average rainfall for different ...
- 830
5
votes
3
answers
7k
views
How to calculate runoff in Rainfall Analysis?
I have 30 years daily rainfall data. How can i calculate the mean monthly runoff, minimum monthly runoff and maximum monthly runoff with the available rainfall data using GIS?
I would like to use ...
- 61