A climate model intercomparison for the Antarctic region: present and past
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...
Published in: | Climate of the Past |
---|---|
Main Authors: | , , |
Format: | Text |
Language: | English |
Published: |
2018
|
Subjects: | |
Online Access: | https://doi.org/10.5194/cp-8-803-2012 https://cp.copernicus.org/articles/8/803/2012/ |
id |
fttriple:oai:gotriple.eu:LDAv0JuVVPZ9YzzDPo2zH |
---|---|
record_format |
openpolar |
spelling |
fttriple:oai:gotriple.eu:LDAv0JuVVPZ9YzzDPo2zH 2023-05-15T13:59:27+02:00 A climate model intercomparison for the Antarctic region: present and past Maris, M. N. A. Boer, B. Oerlemans, J. 2018-09-27 https://doi.org/10.5194/cp-8-803-2012 https://cp.copernicus.org/articles/8/803/2012/ en eng doi:10.5194/cp-8-803-2012 10670/1.tvzlpk https://cp.copernicus.org/articles/8/803/2012/ undefined Geographica Helvetica - geography eISSN: 1814-9332 geo envir Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ 2018 fttriple https://doi.org/10.5194/cp-8-803-2012 2023-01-22T19:13:08Z 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. Text Antarc* Antarctic ice core Ice Sheet Unknown Antarctic The Antarctic Climate of the Past 8 2 803 814 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
geo envir |
spellingShingle |
geo envir Maris, M. N. A. Boer, B. Oerlemans, J. A climate model intercomparison for the Antarctic region: present and past |
topic_facet |
geo envir |
description |
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. |
format |
Text |
author |
Maris, M. N. A. Boer, B. Oerlemans, J. |
author_facet |
Maris, M. N. A. Boer, B. Oerlemans, J. |
author_sort |
Maris, M. N. A. |
title |
A climate model intercomparison for the Antarctic region: present and past |
title_short |
A climate model intercomparison for the Antarctic region: present and past |
title_full |
A climate model intercomparison for the Antarctic region: present and past |
title_fullStr |
A climate model intercomparison for the Antarctic region: present and past |
title_full_unstemmed |
A climate model intercomparison for the Antarctic region: present and past |
title_sort |
climate model intercomparison for the antarctic region: present and past |
publishDate |
2018 |
url |
https://doi.org/10.5194/cp-8-803-2012 https://cp.copernicus.org/articles/8/803/2012/ |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic ice core Ice Sheet |
genre_facet |
Antarc* Antarctic ice core Ice Sheet |
op_source |
Geographica Helvetica - geography eISSN: 1814-9332 |
op_relation |
doi:10.5194/cp-8-803-2012 10670/1.tvzlpk https://cp.copernicus.org/articles/8/803/2012/ |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/cp-8-803-2012 |
container_title |
Climate of the Past |
container_volume |
8 |
container_issue |
2 |
container_start_page |
803 |
op_container_end_page |
814 |
_version_ |
1766267994589102080 |