A mass balance model for the Eurasian ice sheet for the last 120,000 years
We present a mass balance model for Eurasia which is based on the calculation of accumulation from a moisture balance concept. The model is forced with 500 hPa temperatures from GCM time slices at LGM and present day. The model simulates key characteristics, such as control on the size of ice sheets...
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ftunivutrecht:oai:dspace.library.uu.nl:1874/224612 2023-12-03T10:24:19+01:00 A mass balance model for the Eurasian ice sheet for the last 120,000 years van den Berg, J. van de Wal, R.S.W. Oerlemans, J. Marine and Atmospheric Research Dep Natuurkunde 2008 application/pdf https://dspace.library.uu.nl/handle/1874/224612 other unknown 0921-8181 https://dspace.library.uu.nl/handle/1874/224612 info:eu-repo/semantics/OpenAccess Article 2008 ftunivutrecht 2023-11-08T23:11:14Z We present a mass balance model for Eurasia which is based on the calculation of accumulation from a moisture balance concept. The model is forced with 500 hPa temperatures from GCM time slices at LGM and present day. The model simulates key characteristics, such as control on the size of ice sheets through the advection of moisture, asymmetric ice sheets due to advection of moisture and orography, and the drying of ice sheets when they grow. A simulation of the Eurasian Ice Sheet through a full glacial cycle shows that the model reproduces realistic ice sheets that compare well with geomorphological data. During the Middle Weichselian and the Late Weichselian, the model picks up the trend that the Scandinavian part of the ice grows towards the south and east whilst the ice sheet covering the Barents and Kara Seas remains relatively stable. However, the model seriously underestimates the observed ice extent in the Baltic area. Uncertainties in the temperature and the wind field limit the reliability of regional modelling results. Article in Journal/Newspaper Ice Sheet Utrecht University Repository |
institution |
Open Polar |
collection |
Utrecht University Repository |
op_collection_id |
ftunivutrecht |
language |
unknown |
description |
We present a mass balance model for Eurasia which is based on the calculation of accumulation from a moisture balance concept. The model is forced with 500 hPa temperatures from GCM time slices at LGM and present day. The model simulates key characteristics, such as control on the size of ice sheets through the advection of moisture, asymmetric ice sheets due to advection of moisture and orography, and the drying of ice sheets when they grow. A simulation of the Eurasian Ice Sheet through a full glacial cycle shows that the model reproduces realistic ice sheets that compare well with geomorphological data. During the Middle Weichselian and the Late Weichselian, the model picks up the trend that the Scandinavian part of the ice grows towards the south and east whilst the ice sheet covering the Barents and Kara Seas remains relatively stable. However, the model seriously underestimates the observed ice extent in the Baltic area. Uncertainties in the temperature and the wind field limit the reliability of regional modelling results. |
author2 |
Marine and Atmospheric Research Dep Natuurkunde |
format |
Article in Journal/Newspaper |
author |
van den Berg, J. van de Wal, R.S.W. Oerlemans, J. |
spellingShingle |
van den Berg, J. van de Wal, R.S.W. Oerlemans, J. A mass balance model for the Eurasian ice sheet for the last 120,000 years |
author_facet |
van den Berg, J. van de Wal, R.S.W. Oerlemans, J. |
author_sort |
van den Berg, J. |
title |
A mass balance model for the Eurasian ice sheet for the last 120,000 years |
title_short |
A mass balance model for the Eurasian ice sheet for the last 120,000 years |
title_full |
A mass balance model for the Eurasian ice sheet for the last 120,000 years |
title_fullStr |
A mass balance model for the Eurasian ice sheet for the last 120,000 years |
title_full_unstemmed |
A mass balance model for the Eurasian ice sheet for the last 120,000 years |
title_sort |
mass balance model for the eurasian ice sheet for the last 120,000 years |
publishDate |
2008 |
url |
https://dspace.library.uu.nl/handle/1874/224612 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_relation |
0921-8181 https://dspace.library.uu.nl/handle/1874/224612 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1784272699602763776 |