oggm.tasks.compute_centerlines¶
-
oggm.tasks.
compute_centerlines
(gdir, heads=None)[source]¶ Compute the centerlines following Kienholz et al., (2014).
They are then sorted according to the modified Strahler number: http://en.wikipedia.org/wiki/Strahler_number
This function does not initialize a
oggm.Centerline
but calculates routes along the topography and makes ashapely.Linestring
object from them.Parameters: - gdir :
oggm.GlacierDirectory
where to write the data
- heads : list, optional
list of shapely.geometry.Points to use as line heads (default is to compute them like Kienholz did)
Notes
- Files writen to the glacier directory:
- centerlines.pkl
- A list of
oggm.Centerline
instances, sorted by flow order. - gridded_data.nc
- A netcdf file containing several gridded data variables such as topography, the glacier masks, the interpolated 2D glacier bed, and more.
- gdir :