I want to do HRU analysis in ArcSWAT for a watershed that is extended a little to the boundary of another country. When i try to upload the soil data set, it does not proceed. I get the message " the percentage of between the soil datasets and the watershed is only 91.34%. you must have greater than 95 to continue".
Dear Taimur Khan,
Ideally, you should extend your soil map data to get information regarding soil layer outside the actual boundaries of the country within your basin lies.
I do not know how detailed is your actual soil data... But in case you want another source of information which covers a larger area, you can go for the Harmonized World Soil Database (https://www.iiasa.ac.at/web/home/research/researchPrograms/water/HWSD.html), which is global, from which you can rip the soil layer that you need.
Also, there is this recent release from Abbaspour et al. (2019), featuring a global dataset curated and ready to use in SWAT that you might find worth of interest.
Article Global soil, landuse, evapotranspiration, historical and fut...
Hope this helps.
Dear Taimur Khan,
I agree with Yonaba. I think you don't have the data for the part of your basin in the other country. Check this, hopefully this issue will be solved.
Best of luck
Dear Roland Yonaba ,
Actually from the digital soil map of the world i have clipped the soil data for the whole country of my interest ( using shape file of this country). So during HRU analysis, i upload soil data and it overlay but since some part of the watershed is in extended to the neighbor country and due to this reason i get error. is there any way to combine soil data of two countries and then from that i can cut the soil data as per my watershed? Thank you
Dear Taimur,
Instead of using the country shapefile to clip data from the global FAO soil layer, use your watershed boundaries shapefile. As such, you will have soil data for the entire watershed area.
- Badges
- Science topic