Articles | Volume 10, issue 2
https://doi.org/10.5194/tc-10-895-2016
https://doi.org/10.5194/tc-10-895-2016
Research article
 | 
26 Apr 2016
Research article |  | 26 Apr 2016

Improved GRACE regional mass balance estimates of the Greenland ice sheet cross-validated with the input–output method

Zheng Xu, Ernst J. O. Schrama, Wouter van der Wal, Michiel van den Broeke, and Ellyn M. Enderlin

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Short summary
In this paper, we compare the regional mass changes of the Greenland ice sheet between the solutions based on GRACE data and input/output method. Differences are found in some regions and indicate errors in those solutions. Therefore we improve our GRACE and IOM solutions by applying a simulation. We show the improved regional mass changes approximations are more consistent in regions. The remaining difference in the northwester Greenland is due to the underestimated uncertainty in IOM solution.