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| Titel |
Adding a dynamical cryosphere to iLOVECLIM (version 1.0): coupling with the GRISLI ice-sheet model |
| VerfasserIn |
D. M. Roche, C. Dumas, M. Bugelmayer, S. Charbit, C. Ritz |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1991-959X
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| Digitales Dokument |
URL |
| Erschienen |
In: Geoscientific Model Development ; 7, no. 4 ; Nr. 7, no. 4 (2014-07-10), S.1377-1394 |
| Datensatznummer |
250115658
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| Publikation (Nr.) |
 copernicus.org/gmd-7-1377-2014.pdf |
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| Zusammenfassung |
| We present a coupling approach to and the first results of the
GRISLI ice-sheet model within the iLOVECLIM-coupled climate
model. The climate component is a relatively low-resolution earth
system model of intermediate complexity, well suited for long-term
integrations and thus for coupled climate–cryosphere studies. We
describe the coupling procedure with emphasis on the downscaling
scheme and the methods to compute the snow fraction from total
precipitation fields. We then present results for the Greenland ice sheet
under pre-industrial climate
conditions at the end of a 14 000 yr long integration. The
simulated ice sheet presents too large a thickness in its central
part owing to the overestimation of precipitation in the
atmospheric component. We find that including downscaling procedures
for temperature improves the temperature distributions over Greenland
for both the summer and annual means. We also find an
ice-sheet areal extent that is overestimated with respect to the observed
Greenland ice sheet. |
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