CAS-ESM2.0 Model Datasets for the CMIP6 Ocean Model Intercomparison Project Phase 1 (OMIP1)
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CAS-ESM2.0 Model Datasets for the CMIP6 Ocean Model Intercomparison Project Phase 1 (OMIP1) Xiao DONG1, Jiangbo JIN*1, Hailong LIU2,3, He ZHANG1, Minghua ZHANG1, Pengfei LIN2, Qingcun ZENG1, Guangqing ZHOU4, Yongqiang YU2,3, Mirong SONG2, Zhaohui LIN1, Ruxu LIAN1, Xin GAO1, Juanxiong HE1, Dongling ZHANG1, and Kangjun CHEN2 1International
Center for climate and Environment Sciences, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
2State
Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
3College
of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China 4Institute
of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
(Received 28 May 2020; revised 18 August 2020; accepted 4 September 2020) ABSTRACT As a member of the Chinese modeling groups, the coupled ocean–ice component of the Chinese Academy of Sciences’ Earth System Model, version 2.0 (CAS-ESM2.0), is taking part in the Ocean Model Intercomparison Project Phase 1 (OMIP1) experiment of phase 6 of the Coupled Model Intercomparison Project (CMIP6). The simulation was conducted, and monthly outputs have been published on the ESGF (Earth System Grid Federation) data server. In this paper, the experimental dataset is introduced, and the preliminary performances of the ocean model in simulating the global ocean temperature, salinity, sea surface temperature, sea surface salinity, sea surface height, sea ice, and Atlantic Meridional Overturning Circulation (AMOC) are evaluated. The results show that the model is at quasi-equilibrium during the integration of 372 years, and performances of the model are reasonable compared with observations. This dataset is ready to be downloaded and used by the community in related research, e.g., multi-ocean–sea-ice model performance evaluation and interannual variation in oceans driven by prescribed atmospheric forcing. Key words: OGCM, CMIP6, OMIP1, AMOC, ocean temperature/salinity, sea ice Citation: Dong, X., and Coauthors, 2021: CAS-ESM2.0 model datasets for the CMIP6 Ocean Model Intercomparison Project Phase 1 (OMIP1). Adv. Atmos. Sci., https://doi.org/10.1007/s00376-020-0150-3. (in press)
1. Background The ocean covers more than 70% of the entire surface of the Earth and contains more than 95% of the Earth’s water that participates in the hydrological cycle. Besides, the ocean is also a large reservoir of heat owing to its large spatial extent and high heat capacity. Therefore, the ocean is an essential component of the Earth system and deserves intensive study. However, the scarcity of observational data in the ocean hampers its scientific research, especially for deep ocean waters and the Southern Ocean (Garuba and Klinger, 2016). Thus, ocean general circulation models (OGCMs) are essential tools in the scientific community, and are widely used to simulate
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