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Jindřich Zelinka

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Apr 1, 2025, 5:57:30 AMApr 1

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Hello,

I would like to ask, when modeling the situation in APEX, I have a problem with surface runoff (Q) and I get high values. And I have the slope set to 0. So I want to ask if there are any parameters related to surface runoff (Q) that I could adjust.

Thank you,
Zelinka

Luca Doro

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Apr 2, 2025, 9:48:50 AMApr 2

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Dear Zelinka,

I don't know the magnitude of the runoff simulated by APEX in your simulation, but keep in mind that when upland slope is set to zero in the subarea file, the model sets it at 0.001.

In the output file, you can check the value of curve number (CN) during the simulation. High values will result in high runoff.