community! I'm running a hydrological model called Seasonal Water Yield from InVEST, based on monthly precipitation rasters, monthly ET rasters, a land use raster and watershed shapefile. One of the outputs is monthly quickflow rasters, displayed in mm/month. However, the outputs show quickflow values PER PIXEL. Since I'm trying to compare the results with measured stream data, I need to know the total quickflow at the watershed outlet.
Is there anyway I can compute cummulative quickflow from the outputs?