oggm.tasks.catchment_intersections(gdir)[source]

Computes the intersections between the catchments.

A glacier usually consists of several flowlines and each flowline has a distinct catchment area. This function calculates the intersections between these areas.

Parameters
gdiroggm.GlacierDirectory

where to write the data

Notes

Files writen to the glacier directory:
catchments_intersects.shp

The intersections between cathments (shapefile) in the local map projection (Transverse Mercator).

flowline_catchments.shp

Each flowline has a catchment area computed from flow routing algorithms: this shapefile stores the catchment outlines (in the local map projection (Transverse Mercator).