6
votes
Accepted
Is Hudson Bay part of the Arctic or the Atlantic Ocean?
Water above the blue line flows to the arctic. No question there. Water below the green line flows to the Atlantic. Also no debate.
Water between the blue and green lines flows to Hudson Bay. But ...
- 76
5
votes
Can I interpolate rainfall data from stations outside of watershed for the watershed?
Yes, you can interpolate the rainfall from stations outside the watershed. However, the quality of the interpolation will depend on the distance between the stations and the watershed, the prevailing ...
- 4,427
5
votes
Accepted
Easiest way to visualize precipitation drainage using raster elevation files in R?
It sounds like you're looking for flow accumulation (upstream) area, most likely. That's imperfect for what you're looking for (e.g. doesn't account for varying infiltration rates), but it's probably ...
- 915
4
votes
Can I interpolate rainfall data from stations outside of watershed for the watershed?
In short: Yes you can/should use stations outside of your watershed.
More in detail: There is well known methods in hydrology to solve the situation you are presenting.
One simple method is to ...
- 2,669
2
votes
Unable to prepare input file for HSPF software for watershed modeling!
I have found the solution and it seems that in BASINS 4.1, user has to import wdm file before launching HSPF by going to 'File' and then to either 'import data' or 'manage data'. Once this step is ...
- 779
2
votes
Accepted
To delineate the drainage basin for a lake, would the pour point be the inlet or the outlet?
I think there are a few things to consider. First, a drainage basin is defined as the area upstream of the point to which all precipitation converges. Flow does not converge at the outlet - flow ...
- 432
2
votes
Comparing Pros and Cons of SWAT and HSPF
This is a broad question, the best way to compare the models is to go through the manuals and compare the process algorithms to see how the various hydrologic processes are handled. There are other ...
- 751
1
vote
Accepted
How much water do aquifers contain? How much does it take to deplete them?
It depends on the size of the aquifer and the amount of precipitation falling on the exposed areas of the aquifer. These have been used to provide water form many major cities.
The Trafalgar square ...
- 183
1
vote
Comparing Pros and Cons of SWAT and HSPF
I'll preface by saying I have no hands-on experience with either model; however, HSPF has always seemed cumbersome whereas SWAT seems more user friendly. Again, just my read of the software without ...
- 41
1
vote
how to know the correct results in watershed delineation in ArcGIS?
I would recommend looking at automatic stream network delineation and/or known stream locations features, and overlaying those as a check on the final watersheds created through whatever procedure you ...
- 751
1
vote
Agricultural non point source of pollution (AGNPS) model input data
tldr;
On the official support page titled AGNPS Climate Data -- agGEM & preGEM you find a download link to a climate data template file. Your data files need to have this format. All ...
- 2,711
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