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| Titel |
The effect of different climate states on the Antarctic Ice Sheet |
| VerfasserIn |
Malou Maris, Hans Oerlemans  |
| Konferenz |
EGU General Assembly 2011
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250050776
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| Zusammenfassung |
| Variations of the Antarctic Ice Sheet have a large impact on sea level and ocean circulation.
Its state depends strongly on geometric and climatic parameters, it is therefore important to
find out which parameters have the strongest influence. In this study we use the parallel ice
sheet model PISM to investigate how the Antarctic Ice Sheet reacts to different climate states.
We use output of the high-resolution regional climate model RACMO2.1/ANT to provide
PISM with detailed and realistic precipitation and temperature fields. ALBMAP v1
(A.M. Le Brocq et al., 2010) is used to provide the topography, ice thickness and
geothermal heat flux data. The model has been run towards a steady state with different
initial settings. Changing one parameter at a time, results are compared to assess the
effects of different climate states on the ice sheet. Parameters that have been changed
are the temperature lapse rate and the geothermal heat flux, amongst others. The
build-up of the ice sheet, starting with no ice at all, is also investigated. Results
will be presented for the different parameter settings and for the build-up scenario. |
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