Evaluation of Sea Ice Simulation of CAS-ESM 2.0 in Historical Experiment
A sea ice model is an important component of an Earth system model, which is an essential tool for the study of sea ice, including its internal processes, interactions with other components, and projected future changes. This paper evaluates a simulation of sea ice by the Chinese Academy of Sciences...
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ftdoajarticles:oai:doaj.org/article:299422d72c394366b4a61d2128ec2bfd 2024-01-07T09:38:38+01:00 Evaluation of Sea Ice Simulation of CAS-ESM 2.0 in Historical Experiment Xin Gao Peng Fan Jiangbo Jin Juanxiong He Mirong Song He Zhang Kece Fei Minghua Zhang Qingcun Zeng 2022-07-01T00:00:00Z https://doi.org/10.3390/atmos13071056 https://doaj.org/article/299422d72c394366b4a61d2128ec2bfd EN eng MDPI AG https://www.mdpi.com/2073-4433/13/7/1056 https://doaj.org/toc/2073-4433 doi:10.3390/atmos13071056 2073-4433 https://doaj.org/article/299422d72c394366b4a61d2128ec2bfd Atmosphere, Vol 13, Iss 7, p 1056 (2022) CAS-ESM 2.0 sea ice seasonal cycle sea ice mass budget Meteorology. Climatology QC851-999 article 2022 ftdoajarticles https://doi.org/10.3390/atmos13071056 2023-12-10T01:43:15Z A sea ice model is an important component of an Earth system model, which is an essential tool for the study of sea ice, including its internal processes, interactions with other components, and projected future changes. This paper evaluates a simulation of sea ice by the Chinese Academy of Sciences Earth System Model version 2 (CAS-ESM 2.0), focusing on a historical simulation in the Coupled Model Intercomparison Project Phase 6 (CMIP6). Compared with the observations, CAS-ESM 2.0 reproduces reasonable seasonal cycle features and the climatological spatial distribution of Arctic and Antarctic sea ice, including sea ice extent (SIE), sea ice concentration, and sea ice thickness and motion. However, the SIE in CAS-ESM 2.0 is too large in winter and too low in summer in both hemispheres, indicating higher seasonal variations of the model relative to observations. Further sea ice mass budget diagnostics show that basal growth contributes most to ice increase in both hemispheres, basal melt and top melt make a comparable contribution to Arctic ice decrease, and basal melt plays a dominant role in Antarctic ice loss. This, combined with surface air temperature (SAT) and sea surface temperature (SST) biases, suggests that the excess of sea ice simulated in wintertime in both hemispheres and the lower SIE simulated in the Antarctic summer are mainly attributable to the bias in SST, whereas the lower SIE simulated in the Arctic summer is probably due to the combined effects of both the SST and SAT biases. Article in Journal/Newspaper Antarc* Antarctic Arctic Sea ice Directory of Open Access Journals: DOAJ Articles Antarctic Arctic The Antarctic Atmosphere 13 7 1056 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
CAS-ESM 2.0 sea ice seasonal cycle sea ice mass budget Meteorology. Climatology QC851-999 |
spellingShingle |
CAS-ESM 2.0 sea ice seasonal cycle sea ice mass budget Meteorology. Climatology QC851-999 Xin Gao Peng Fan Jiangbo Jin Juanxiong He Mirong Song He Zhang Kece Fei Minghua Zhang Qingcun Zeng Evaluation of Sea Ice Simulation of CAS-ESM 2.0 in Historical Experiment |
topic_facet |
CAS-ESM 2.0 sea ice seasonal cycle sea ice mass budget Meteorology. Climatology QC851-999 |
description |
A sea ice model is an important component of an Earth system model, which is an essential tool for the study of sea ice, including its internal processes, interactions with other components, and projected future changes. This paper evaluates a simulation of sea ice by the Chinese Academy of Sciences Earth System Model version 2 (CAS-ESM 2.0), focusing on a historical simulation in the Coupled Model Intercomparison Project Phase 6 (CMIP6). Compared with the observations, CAS-ESM 2.0 reproduces reasonable seasonal cycle features and the climatological spatial distribution of Arctic and Antarctic sea ice, including sea ice extent (SIE), sea ice concentration, and sea ice thickness and motion. However, the SIE in CAS-ESM 2.0 is too large in winter and too low in summer in both hemispheres, indicating higher seasonal variations of the model relative to observations. Further sea ice mass budget diagnostics show that basal growth contributes most to ice increase in both hemispheres, basal melt and top melt make a comparable contribution to Arctic ice decrease, and basal melt plays a dominant role in Antarctic ice loss. This, combined with surface air temperature (SAT) and sea surface temperature (SST) biases, suggests that the excess of sea ice simulated in wintertime in both hemispheres and the lower SIE simulated in the Antarctic summer are mainly attributable to the bias in SST, whereas the lower SIE simulated in the Arctic summer is probably due to the combined effects of both the SST and SAT biases. |
format |
Article in Journal/Newspaper |
author |
Xin Gao Peng Fan Jiangbo Jin Juanxiong He Mirong Song He Zhang Kece Fei Minghua Zhang Qingcun Zeng |
author_facet |
Xin Gao Peng Fan Jiangbo Jin Juanxiong He Mirong Song He Zhang Kece Fei Minghua Zhang Qingcun Zeng |
author_sort |
Xin Gao |
title |
Evaluation of Sea Ice Simulation of CAS-ESM 2.0 in Historical Experiment |
title_short |
Evaluation of Sea Ice Simulation of CAS-ESM 2.0 in Historical Experiment |
title_full |
Evaluation of Sea Ice Simulation of CAS-ESM 2.0 in Historical Experiment |
title_fullStr |
Evaluation of Sea Ice Simulation of CAS-ESM 2.0 in Historical Experiment |
title_full_unstemmed |
Evaluation of Sea Ice Simulation of CAS-ESM 2.0 in Historical Experiment |
title_sort |
evaluation of sea ice simulation of cas-esm 2.0 in historical experiment |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/atmos13071056 https://doaj.org/article/299422d72c394366b4a61d2128ec2bfd |
geographic |
Antarctic Arctic The Antarctic |
geographic_facet |
Antarctic Arctic The Antarctic |
genre |
Antarc* Antarctic Arctic Sea ice |
genre_facet |
Antarc* Antarctic Arctic Sea ice |
op_source |
Atmosphere, Vol 13, Iss 7, p 1056 (2022) |
op_relation |
https://www.mdpi.com/2073-4433/13/7/1056 https://doaj.org/toc/2073-4433 doi:10.3390/atmos13071056 2073-4433 https://doaj.org/article/299422d72c394366b4a61d2128ec2bfd |
op_doi |
https://doi.org/10.3390/atmos13071056 |
container_title |
Atmosphere |
container_volume |
13 |
container_issue |
7 |
container_start_page |
1056 |
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1787424498038865920 |