Articles | Volume 8, issue 6
https://doi.org/10.5194/tc-8-2335-2014
https://doi.org/10.5194/tc-8-2335-2014
Research article
 | 
15 Dec 2014
Research article |  | 15 Dec 2014

Inferred basal friction and surface mass balance of the Northeast Greenland Ice Stream using data assimilation of ICESat (Ice Cloud and land Elevation Satellite) surface altimetry and ISSM (Ice Sheet System Model)

E. Larour, J. Utke, B. Csatho, A. Schenk, H. Seroussi, M. Morlighem, E. Rignot, N. Schlegel, and A. Khazendar

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AR by Anna Wenzel on behalf of the Authors (09 Sep 2014)  Author's response
ED: Publish subject to technical corrections (30 Sep 2014) by Andreas Vieli
AR by Eric Larour on behalf of the Authors (30 Sep 2014)  Author's response    Manuscript
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Short summary
We present a temporal inversion of surface mass balance and basal friction for the Northeast Greenland Ice Sheet between 2003 and 2009, using the altimetry record from ICESat. The inversion relies on automatic differentiation of ISSM and demonstrates the feasibility of assimilating altimetry records into reconstructions of the Greenland Ice Sheet. The boundary conditions provide a snapshot of the state of the ice for this period and can be used for further process studies.