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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fttibhannoverren:oai:oa.tib.eu:123456789/673 2024-09-15T18:07:46+00:00 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://oa.tib.eu/renate/handle/123456789/673 https://doi.org/10.34657/1264 eng eng München : European Geopyhsical Union DOI:https://doi.org/10.5194/tc-11-1519-2017 https://doi.org/10.34657/1264 https://oa.tib.eu/renate/handle/123456789/673 CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/ frei zugänglich ddc:550 climate modeling diurnal variation freeze-thaw cycle future prospect glacier mass balance ice sheet model validation parameterization regional climate snowpack surface energy surface temperature status-type:publishedVersion doc-type:Article doc-type:Text 2017 fttibhannoverren https://doi.org/10.34657/126410.5194/tc-11-1519-2017 2024-07-03T23:33:53Z 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. Article in Journal/Newspaper glacier Greenland Ice Sheet Prospect Glacier Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover) |
institution |
Open Polar |
collection |
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover) |
op_collection_id |
fttibhannoverren |
language |
English |
topic |
ddc:550 climate modeling diurnal variation freeze-thaw cycle future prospect glacier mass balance ice sheet model validation parameterization regional climate snowpack surface energy surface temperature |
spellingShingle |
ddc:550 climate modeling diurnal variation freeze-thaw cycle future prospect glacier mass balance ice sheet model validation parameterization regional climate snowpack surface energy surface temperature Krapp, Mario Robinson, Alexander Ganopolski, Andrey SEMIC: An efficient surface energy and mass balance model applied to the Greenland ice sheet |
topic_facet |
ddc:550 climate modeling diurnal variation freeze-thaw cycle future prospect glacier mass balance ice sheet model validation parameterization regional climate snowpack surface energy surface temperature |
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. |
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://oa.tib.eu/renate/handle/123456789/673 https://doi.org/10.34657/1264 |
genre |
glacier Greenland Ice Sheet Prospect Glacier |
genre_facet |
glacier Greenland Ice Sheet Prospect Glacier |
op_relation |
DOI:https://doi.org/10.5194/tc-11-1519-2017 https://doi.org/10.34657/1264 https://oa.tib.eu/renate/handle/123456789/673 |
op_rights |
CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/ frei zugänglich |
op_doi |
https://doi.org/10.34657/126410.5194/tc-11-1519-2017 |
_version_ |
1810445146255261696 |