 |
| Titel |
A climate model intercomparison for the Antarctic region: present and past |
| VerfasserIn |
M. N. A. Maris, B. Boer, J. Oerlemans  |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1814-9324
|
| Digitales Dokument |
URL |
| Erschienen |
In: Climate of the Past ; 8, no. 2 ; Nr. 8, no. 2 (2012-04-18), S.803-814 |
| Datensatznummer |
250005485
|
| Publikation (Nr.) |
 copernicus.org/cp-8-803-2012.pdf |
|
|
|
|
|
| Zusammenfassung |
| Eighteen General Circulation Models (GCMs) are compared to reference data for
the present, the Mid-Holocene (MH) and the Last Glacial Maximum (LGM) for the
Antarctic region. The climatology produced by a regional climate model is
taken as a reference climate for the present. GCM results for the past are
compared to ice-core data. The goal of this study is to find the best GCM
that can be used to drive an ice sheet model that simulates the evolution of
the Antarctic Ice Sheet. Because temperature and precipitation are the most
important climate variables when modelling the evolution of an ice sheet,
these two variables are considered in this paper. This is done by ranking the
models according to how well their output corresponds with the references. In
general, present-day temperature is simulated well, but precipitation is
overestimated compared to the reference data. Another finding is that model
biases play an important role in simulating the past, as they are often
larger than the change in temperature or precipitation between the past and
the present. Considering the results for the present-day as well as for the
MH and the LGM, the best performing models are HadCM3 and MIROC 3.2.2. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|