oggm.tasks.catchment_area

oggm.tasks.catchment_area(gdir)[source]

Compute the catchment areas of each tributary line.

The idea is to compute the route of lowest cost for any point on the glacier to rejoin a centerline. These routes are then put together if they belong to the same centerline, thus creating “catchment areas” for each centerline.

Parameters:

gdir : oggm.GlacierDirectory

Returns:

Files writen to the glacier directory:

catchment_indices.pkl

A list of len n_centerlines, each element conaining a numpy array of the indices in the glacier grid which represent the centerline’s catchment area.