Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [catchment]

The tag has no usage guidance.

0
votes
0answers
31 views

Clipping features with the attributes of another feature

I have a vector polygon for a catchment which contains numerous subbasins. In addition, I also, possess another vector polygon showing the impervious areas of the catchment. What I want to do is ...
0
votes
1answer
361 views

Calculating Specific Catchment Area in QGIS?

I have tried to calculate the Specific Catchment Area in QGis from Specific Catchment Area and Flow Width Tool available through Saga. However, I got just SCA product with valour 0. I got a reasonable ...
2
votes
1answer
49 views

Watershed issue

I am attempting to create a catchment of Danube. So far I have used the r.fill.dir to create a depressionless map and flow directions. Thus, I am now looking to use r.watershed to create stream ...
1
vote
1answer
241 views

Adjoint catchments missing in Arc Hydro?

I am using ArcGIS Desktop 10.4. I have to calculate the upstream river catchments of all my small river catchments. As you can see in the picture below, there are catchments missing in a weird ...
3
votes
0answers
311 views

ArcHydro catchment area of specific stream segment

I am given the task to create the catchment areas of specific streams/lakes. To sum it all up, I am looking to find the catchment areas for lake 1, stream, lake 2 and downstream of lake 2 all ...
1
vote
3answers
136 views

GRASS r.catchment causes r.reclass error

I'm using GRASS 7.0.3 on Windows 7 (part of the QGIS 2.14 distribution) with the extra installed add-on module r.catchment. I'm trying to use GRASS to calculate a catchment raster, but I keep getting ...
3
votes
1answer
311 views

Catchment boundary polygon from catchment area raster

I am trying to generate a catchment area polygon from a digital elevation model. I am using SAGA tools in QGIS and used the Flow Accumulation (Flow Tracing) tool to generate a catchment area raster ...
1
vote
0answers
325 views

Why do I get an error running Catchment Polygon Processing?

I am trying to run catchment polygon processing in ArcGIS 10.3, and this is what i get "error hresult e_fail has been returned from a call to a com component" Can you help me to debug this error?
2
votes
0answers
447 views

“Problem loading output layers” error when running algorithms on rasters in QGIS

I am trying to delineate a catchment from SRTM 1arc second data in QGIS. For this, I first try to use the Fill Sinks algorithm and then the Catchment Area algorithm. Both of the operations gives a "...
2
votes
0answers
95 views

Prevent polygon feature (catchment) overlap for land-use extraction using QGIS?

My aim is to calculate catchments for around 150 points and to extract land-use variables for them. In order to do so I need a vector dataset where no polygons overlap. This, however, seems to be a ...