Some ice-age aspects of a calving ice-sheet model.

Abstract

The model predicts ice thickness and bedrock deformation in a N-S cross section, with a prescribed snow-budget distribution shifted vertically to represent the orbital perturbations. An ice calving parameterization is added, crudely representing proglacial lakes or marine incursions that attack the ice whenever the tip drops below sea level. With this extension the model produces a large 100 kyr response with complete deglaciations, and agrees fairly well with the d18O deep-sea core records. -from Author