Questions tagged [watershed]
The watershed tag has no usage guidance.
14
questions
3
votes
0
answers
48
views
Causes of high calcium levels in sandy alluvial soils
When soil calcium is high: High levels of soil calcium may be expected when there is substantial calcium carbonate bedrock from which the soil has weathered. Calcium levels can be high in agricultural ...
0
votes
0
answers
17
views
MIKE SHE Lateral inflow outputs and the differences between them
There are four 'Lateral inflow' related variables coming out from the .res1d file
Lateral inflow SHE overland
Lateral inflow SHE saturated zone
Lateral inflow SHE overland drain
Lateral inflow SHE ...
4
votes
1
answer
62
views
Easiest way to visualize precipitation drainage using raster elevation files in R?
As a non-specialist, enviro-enthusiast, I am curious about visualizing post-precipitation run-off in my local area. I have been able to access and download appropriate elevatio rasters for my local ...
0
votes
0
answers
52
views
Rainfall guage stations outside the watershed
How can I determine the rainfall depth for an event over the watershed, if I just have two stations, S1 and S2, that are outside the catchment?
Methods I have thought of were to take the average of ...
12
votes
1
answer
2k
views
Is Hudson Bay part of the Arctic or the Atlantic Ocean?
Years ago I learned that the Columbia ice field was North America's triple divide point: water flowing from this ice field could drain into the Artic, the Pacific, and the Atlantic Ocean. Something I ...
- 6,824
0
votes
1
answer
47
views
How much water do aquifers contain? How much does it take to deplete them?
How much water does a typical aquifer contain, and is casual well use is likely to deplete them?
Your answer can take many forms, but an ideal question would cover these sort of areas- would a single ...
- 103
5
votes
2
answers
225
views
Can I interpolate rainfall data from stations outside of watershed for the watershed?
I have only few station inside the watershed so I want to use the stations outside if I can to get better results
- 51
5
votes
2
answers
403
views
Comparing Pros and Cons of SWAT and HSPF
To model hydrology in a watershed, two of the most famous and widely used distributed models are SWAT and HSPF. I have some good understanding of HPSF, but I don't know when and why should one prefer ...
- 759
4
votes
1
answer
95
views
how to know the correct results in watershed delineation in ArcGIS?
When I use one DEM in my study area to delineate watersheds, the results are different from when I mosaic 4 DEM layers adjacent to each other.
After the mosaic process, 3 of the basins were merged in ...
1
vote
0
answers
44
views
Watershed scale water quality indices
I understand water quality indices play a fundamental role in modelling water quality as they integrate multiple water quality parameters to bring about a single dimensionless digit that represents ...
- 245
3
votes
0
answers
131
views
Why Coastal catchments should be appended for watershed analysis (Archydro Suggestion)?
I'm a GIS specialist with a good background in watershed hydrology and geomorphology theories. In a project, I should analyse coastal and inland catchments separately. I have some neighbourhood ...
- 173
1
vote
1
answer
419
views
Agricultural non point source of pollution (AGNPS) model input data
How to input climate data for AGNPS model? AGNPS model is developed USDA https://www.nrcs.usda.gov/wps/portal/nrcs/detailfull/null/?cid=stelprdb1042468
- 11
2
votes
1
answer
82
views
Unable to prepare input file for HSPF software for watershed modeling!
I am trying to use BASINS 4.1 software to prepare input file for HSPF (.uci). When I launch HSPF from BASINS software, I have to direct the sofware to read a time series file (.wdm). In my case I am ...
- 759
3
votes
1
answer
367
views
To delineate the drainage basin for a lake, would the pour point be the inlet or the outlet?
I am interested in the area draining into and affecting a particular lake. Delineating this drainage basin, should I use the lake's inlet or outlet to best capture the relevant drainage basin? I think ...
- 1,178