Computing basin area for the latlon requires attention
Hi David, just figured out a possible issue regarding the basin area calculation for latlon version... please check (not urgent)
For coordinates in latlon, the grid-cell area decreases with increasing latitude-y (from equator to poles). After consultation with @rkumar, the area should be:
AREA = Ncells_from_FACC * (L0resolution_x * scaling factor) * (**cos(LAT_in_degrees)** * L0resolution_y * scaling factor)
Possible quick solution for a user is to provide drainage area divided by cos(LAT_in_degrees) in the yml file directly.
If you have a better solution, which you would like to implement, please let me know. Thanks!
Note that for the coordinates in meters, all is fine, scaling factor is 0.001