SEMIC: An efficient surface energy and mass balance model applied to the Greenland ice sheet
We present SEMIC, a Surface Energy and Mass balance model of Intermediate Complexity for snow- and ice-covered surfaces such as the Greenland ice sheet. SEMIC is fast enough for glacial cycle applications, making it a suitable replacement for simpler methods such as the positive degree day (PDD) met...
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ftleibnizopen:oai:oai.leibnizopen.de:l5NS04kBdbrxVwz6PRDa 2023-10-01T03:56:09+02:00 SEMIC: An efficient surface energy and mass balance model applied to the Greenland ice sheet Krapp, Mario Robinson, Alexander Ganopolski, Andrey 2017 application/pdf https://doi.org/10.34657/1264 https://oa.tib.eu/renate/handle/123456789/673 eng eng München : European Geopyhsical Union CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/ The Cryosphere, Volume 11, Issue 4, Page 1519-1535 climate modeling diurnal variation freeze-thaw cycle future prospect glacier mass balance ice sheet model validation parameterization regional climate snowpack surface energy surface temperature 550 article Text 2017 ftleibnizopen https://doi.org/10.34657/1264 2023-09-03T23:18:04Z We present SEMIC, a Surface Energy and Mass balance model of Intermediate Complexity for snow- and ice-covered surfaces such as the Greenland ice sheet. SEMIC is fast enough for glacial cycle applications, making it a suitable replacement for simpler methods such as the positive degree day (PDD) method often used in ice sheet modelling. Our model explicitly calculates the main processes involved in the surface energy and mass balance, while maintaining a simple interface and requiring minimal data input to drive it. In this novel approach, we parameterise diurnal temperature variations in order to more realistically capture the daily thaw–freeze cycles that characterise the ice sheet mass balance. We show how to derive optimal model parameters for SEMIC specifically to reproduce surface characteristics and day-to-day variations similar to the regional climate model MAR (Modèle Atmosphérique Régional, version 2) and its incorporated multilayer snowpack model SISVAT (Soil Ice Snow Vegetation Atmosphere Transfer). A validation test shows that SEMIC simulates future changes in surface temperature and surface mass balance in good agreement with the more sophisticated multilayer snowpack model SISVAT included in MAR. With this paper, we present a physically based surface model to the ice sheet modelling community that is general enough to be used with in situ observations, climate model, or reanalysis data, and that is at the same time computationally fast enough for long-term integrations, such as glacial cycles or future climate change scenarios. publishedVersion Article in Journal/Newspaper glacier Greenland Ice Sheet Prospect Glacier The Cryosphere LeibnizOpen (The Leibniz Association) Greenland Prospect Glacier ENVELOPE(-67.398,-67.398,-69.546,-69.546) |
institution |
Open Polar |
collection |
LeibnizOpen (The Leibniz Association) |
op_collection_id |
ftleibnizopen |
language |
English |
topic |
climate modeling diurnal variation freeze-thaw cycle future prospect glacier mass balance ice sheet model validation parameterization regional climate snowpack surface energy surface temperature 550 |
spellingShingle |
climate modeling diurnal variation freeze-thaw cycle future prospect glacier mass balance ice sheet model validation parameterization regional climate snowpack surface energy surface temperature 550 Krapp, Mario Robinson, Alexander Ganopolski, Andrey SEMIC: An efficient surface energy and mass balance model applied to the Greenland ice sheet |
topic_facet |
climate modeling diurnal variation freeze-thaw cycle future prospect glacier mass balance ice sheet model validation parameterization regional climate snowpack surface energy surface temperature 550 |
description |
We present SEMIC, a Surface Energy and Mass balance model of Intermediate Complexity for snow- and ice-covered surfaces such as the Greenland ice sheet. SEMIC is fast enough for glacial cycle applications, making it a suitable replacement for simpler methods such as the positive degree day (PDD) method often used in ice sheet modelling. Our model explicitly calculates the main processes involved in the surface energy and mass balance, while maintaining a simple interface and requiring minimal data input to drive it. In this novel approach, we parameterise diurnal temperature variations in order to more realistically capture the daily thaw–freeze cycles that characterise the ice sheet mass balance. We show how to derive optimal model parameters for SEMIC specifically to reproduce surface characteristics and day-to-day variations similar to the regional climate model MAR (Modèle Atmosphérique Régional, version 2) and its incorporated multilayer snowpack model SISVAT (Soil Ice Snow Vegetation Atmosphere Transfer). A validation test shows that SEMIC simulates future changes in surface temperature and surface mass balance in good agreement with the more sophisticated multilayer snowpack model SISVAT included in MAR. With this paper, we present a physically based surface model to the ice sheet modelling community that is general enough to be used with in situ observations, climate model, or reanalysis data, and that is at the same time computationally fast enough for long-term integrations, such as glacial cycles or future climate change scenarios. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Krapp, Mario Robinson, Alexander Ganopolski, Andrey |
author_facet |
Krapp, Mario Robinson, Alexander Ganopolski, Andrey |
author_sort |
Krapp, Mario |
title |
SEMIC: An efficient surface energy and mass balance model applied to the Greenland ice sheet |
title_short |
SEMIC: An efficient surface energy and mass balance model applied to the Greenland ice sheet |
title_full |
SEMIC: An efficient surface energy and mass balance model applied to the Greenland ice sheet |
title_fullStr |
SEMIC: An efficient surface energy and mass balance model applied to the Greenland ice sheet |
title_full_unstemmed |
SEMIC: An efficient surface energy and mass balance model applied to the Greenland ice sheet |
title_sort |
semic: an efficient surface energy and mass balance model applied to the greenland ice sheet |
publisher |
München : European Geopyhsical Union |
publishDate |
2017 |
url |
https://doi.org/10.34657/1264 https://oa.tib.eu/renate/handle/123456789/673 |
long_lat |
ENVELOPE(-67.398,-67.398,-69.546,-69.546) |
geographic |
Greenland Prospect Glacier |
geographic_facet |
Greenland Prospect Glacier |
genre |
glacier Greenland Ice Sheet Prospect Glacier The Cryosphere |
genre_facet |
glacier Greenland Ice Sheet Prospect Glacier The Cryosphere |
op_source |
The Cryosphere, Volume 11, Issue 4, Page 1519-1535 |
op_rights |
CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.34657/1264 |
_version_ |
1778525330091278336 |