- oggm.tasks.compute_velocities(gdir, glen_a=None, fs=None, filesuffix='', with_sliding=False)¶
Surface velocities along the flowlines from inverted ice thickness.
Computed following the methods described in Cuffey and Paterson (2010) Eq. 8.35, pp 310:
u_s = u_basal + (2A/n+1)* tau^n * H
In the case of no sliding (or if with_sliding=False, which is a justifiable simplification given uncertainties on basal sliding):
u_z/u_s = [n+1]/[n+2] (= 0.8 if n = 3).
The output is written in ‘inversion_output.pkl’ in m yr-1
You’ll need to call prepare_for_inversion with the add_debug_var=True kwarg for this to work!
- gdirGlacier directory
default is False, if set to True we will compute using the sliding component.
- glen_aGlen A, defaults to PARAMS
- fssliding, defaults to PARAMS
add a suffix to the output file
- Files written to the glacier directory:
List of dicts containing the output data from the inversion.