Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 15, issue 18
Articles | Volume 15, issue 18
https://doi.org/10.5194/gmd-15-7121-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-15-7121-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 15, issue 18
Development and technical paper
 | 
21 Sep 2022
Development and technical paper |  | 21 Sep 2022

Improved representation of the contemporary Greenland ice sheet firn layer by IMAU-FDM v1.2G

Max Brils, Peter Kuipers Munneke, Willem Jan van de Berg, and Michiel van den Broeke

Supplement

https://doi.org/10.5194/gmd-15-7121-2022-supplement

Data sets

Firn temperatures and measurement depths at nine Greenland Climate Network (GC-Net) weather stations, 1998-2017 B. Vandecrux https://doi.org/10.18739/A2833N00P

Model code and software

IMAU-FDM v1.2G GMD release Max Brils, Peter Kuipers Munneke, Willem Jan van de Berg, and Michiel van den Broeke https://doi.org/10.5281/zenodo.5172513

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Short summary
Firn covers the Greenland ice sheet (GrIS) and can temporarily prevent mass loss. Here, we present the latest version of our firn model, IMAU-FDM, with an application to the GrIS. We improved the density of fallen snow, the firn densification rate and the firn's thermal conductivity. This leads to a higher air content and 10 m temperatures. Furthermore we investigate three case studies and find that the updated model shows greater variability and an increased sensitivity in surface elevation.
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