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Analyzing Seasonal Water Yield Results: very low values of Qf
Hi, Nat Cap!
Can you help me please with some calibration in Seasonal Water Yield model? I came trough the results of the SWY model for some watersheds in south Brazil, and while some results seem very fair to me (as annual AET), others are difficult to me to interpret. I managed to have actual evapotranspiration rates very similar to observed data (about 900 mm), using CN and Kc parameters based in local literature. But the baseflow (Qb) is relatively higher (557 mm/yr) that other studies in the same region (the areas with bigger baseflow rarely overpass 300 mm/yr, according literature). What caught my attention was the low average value of quickflow (68mm/yr); I'm not sure if quickflow in InVEST's context means streamflow (if so, the actual values are much larger than SWY output). Do you have a clue on how to balance the Qb and Qf values to have more realistic outputs?
I have created a monthly table for the alpha parameter, and have amde few tests with beta and gamma, which seem to have not much influence in the results.
Thank you, cheers,