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glerosion

Module glerosion

This IGM module implements change in basal topography (due to glacial erosion). The bedrock is updated (with a frequency provided by parameter processes.glerosion.update_freq years) assuming a power erosion law, i.e. the erosion rate is proportional (parameter processes.glerosion.cst) to a power (parameter processes.glerosion.exp) of the sliding velocity magnitude. By default, we use the parameters from [1].

[1] Herman, F. et al., Erosion by an Alpine glacier. Science 350, 193-195, 2015.

Contributors: G. Jouvet

Config Structure

glerosion:
  cst: 2.7e-7
  exp: 2
  update_freq: 1

Parameters

Name Type Units Description Default Value
cst float dimless Erosion multiplicative factor, here taken from Herman, F. et al. Erosion by an Alpine glacier. Science 350, 193–195 (2015) 2.7e-07
exp float dimless Erosion exponent factor, here taken from Herman, F. et al. Eerosion by an Alpine glacier. Science 350, 193–195 (2015) 2
update_freq float y Update the erosion only each X years 1