Simulating surface height and terminus position for marine outlet glaciers using a level set method with data assimilation. (arXiv:2201.12235v1 [physics.ao-ph])

Web: http://arxiv.org/abs/2201.12235

We implement a data assimilation framework for integrating ice surface and
terminus position observations into a numerical ice-flow model. The model uses
the well-known shallow shelf approximation (SSA) coupled to a level set method
to capture ice motion and changes in the glacier geometry. The level set method
explicitly tracks the evolving ice-atmosphere and ice-ocean boundaries for a
marine outlet glacier. We use an Ensemble Transform Kalman Filter to assimilate
observations of ice surface elevation and lateral ice extent by …

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