I want build the soil data base for SWAT model. Where I can find the Canada soil data base which based by HWSD(Harmonized World Soil Database)?

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Timothy O Randhir

Did you check http://sis.agr.gc.ca/cansis/nsdb/dss/v3/index.html published by AgriCanada?

and

http://sis.agr.gc.ca/cansis/publications/surveys/pq/index.html

Awoke Dagnew

I am currently working on harmonizing Canada and US soil data for a SWAT modeling and the above mentioned sources are where you need to go and find soil data for your study area. They do have almost all of the parameters you need for SWAT modeling. You may need to convert units and calculate 2 or 3 SWAT soil parameters, such as AWC(%) and K from parameters available in the database.

Good luck!

Yu Liu

Thank you for your answer.

Awoke Dagnew Teshager, where I can find the data? Who should I contact?

Thanks a lot!

You can find a coarse resolution soil data-set for the entire country at http://sis.agr.gc.ca/cansis/nsdb/slc/v3.2/index.html

For a more finer resolution data-set, you may go to http://sis.agr.gc.ca/cansis/publications/surveys/pq/index.html#DSS. However, they have the shape files for only few areas in Quebec. I am not sure if your study area lays in there. If it does, it is your lucky day! Otherwise you may need to use both sources.

Rahel Birhanu Kassaye

Dear Awoke,

Could you please direct me to use HWSD to create soil classification lookuptable for HRU analysis?

I am using ArcSWAT and my case watershed is in Ethiopia. I have tried by replacing the UserSoil in SWAT2012 access by that of HWSD_DATA in the HWSD table. While I add the soil data in ArcSWAT, Land use/soil Data/slope definition and choose UserSoil database option then the soil values have appeared in the table, which I think are ID numbers of the HWSD data. But I am not sure which name to use to create a lookup table (it seems there is no unique name except the Id in the HWSD_DATA ) and I doubt whether SWAT will be able to load from the replaced usersoil (as the format of the two table is not similar) I have simply imported the HWSD_DATA in the SWAT2012 access data and renamed and replaced its usersoil by the imported one.

could you please share with me supporting materials also at [email protected]

I really appreciate your help!

Regards,

Rahel