Surface runoff generated from QSWAT+

[Subhadip Datta]

There are several surface runoff outputs generated from the QSWAT+ simulation. 

surq_gen = H2O |surface runoff generated from the landscape
surq_cont = H2O |surface runoff leaving the landscape
surq_runon = H2O |surface runoff from upland landscape
surq_cha = H2O |surface runoff flowing into channels
surq_res = H2O |surface runoff flowing into reservoirs
surq_ls = H2O |surface runoff flowing onto the landscape

Which of those I have to take for Water Budgeting? or there are any equation to calculate it from those simulation outputs? please help with this.

[Maarten Waterloo]

Hi Subhadip,

 

Nice question, and it depends on what scale you are looking. If you look at (sub-)catchment scale, you would use the channel flow output of that (sub-)catchment. If you look at more detailed HRU scale, then you may want to use one or more of the surq_ outputs as well as lat and gw outputs. SWAT+ check provides the water balance info for the whole catchment for checking.

 

Kind regards,​ Maarten Waterloo Acacia Water

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