Articles | Volume 15, issue 12
The Cryosphere, 15, 5675–5704, 2021
https://doi.org/10.5194/tc-15-5675-2021
The Cryosphere, 15, 5675–5704, 2021
https://doi.org/10.5194/tc-15-5675-2021

Research article 17 Dec 2021

Research article | 17 Dec 2021

Seasonal evolution of basal environment conditions of Russell sector, West Greenland, inverted from satellite observation of surface flow

Anna Derkacheva et al.

Data sets

Satellite-observed surface flow speed within Russell sector, West Greenland, bi-weekly average of 2015-2019 (1.0) A. Derkacheva, J. Mouginot, and R. Millan https://doi.org/10.5281/zenodo.5535532

Seasonal evolution of basal conditions within Russell sector, West Greenland, inverted from satellite observations of surface flow (1.0) A. Derkacheva, F. Gillet-Chaulet, and J. Mouginot https://doi.org/10.5281/zenodo.5535624

MEaSUREs Greenland Ice Mapping Project (GIMP) Digital Elevation Model (2.1) I. Howat, A. Negrete, and B. Smith https://doi.org/10.5067/NV34YUIXLP9W

Model code and software

Open Source Finite Element Software for Ice Sheet, Glaciers and Ice Flow Modelling Elmer/Ice http://elmerice.elmerfem.org/

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Short summary
Along the edges of the Greenland Ice Sheet surface melt lubricates the bed and causes large seasonal fluctuations in ice speeds during summer. Accurately understanding how these ice speed changes occur is difficult due to the inaccessibility of the glacier bed. We show that by using surface velocity maps with high temporal resolution and numerical modelling we can infer the basal conditions that control seasonal fluctuations in ice speed and gain insight into seasonal dynamics over large areas.