Evaluation of the Arctic Sea-Ice Simulation on SODA3 Datasets  

作　　者：Zhicheng GE Xuezhu WANG Xidong WANG 

机构地区：[1]Key Laboratory of Marine Hazards Forecasting,Ministry of Natural Resources,Hohai University,Nanjing 210098,China [2]Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai),Zhuhai 519000,China [3]Key Laboratory of Marine Science and Numerical Modeling,Ministry of Natural Resources,Qingdao 266061,China

出　　处：《Advances in Atmospheric Sciences》2023年第12期2302-2317,共16页大气科学进展（英文版）

基　　金：supported by the Opening Project of Key Laboratory of Marine Science and Numerical Modeling, MNR (2020-ZD-01);the Special Funds for Creative Research (2022C61540);the National Natural Science Foundation (Grant Nos. 41776004, 41876224);the Fundamental Research Funds for the Central Universities (B210203020);the Opening Project of Key Laboratory of Marine Environmental Information Technology (20195052912)

摘　　要：This study evaluates the Arctic sea-ice simulation of the SODA3 dataset driven by different atmospheric forcing fields and explores the errors of the Arctic sea-ice simulation caused by the forcing field.We find that the SODA3 data driven by different forcing fields represent a significant systematical error in the simulation of Arctic sea-ice concentration,showing a low concentration of thick ice and a high concentration of thin ice.In terms of sea-ice extent,the SODA3 data from different versions well characterize the interannual variability and declining trend in the observed data,but they overestimate the overall Arctic sea-ice extent,which is related to excessive simulation of ice in the sea-ice margin.Compared to observations,all the chosen SODA3 reanalysis versions driven by different atmospheric forcing generally tend to underestimate the Arctic sea-ice thickness,especially for thick ice in the multi-year sea-ice regions.Inaccurate simulations of Arctic sea-ice transport may partly explain the error in SODA3 sea-ice thickness in multi-year sea-ice areas.The results of different SDOA3 versions differ greatly in the Beaufort Sea,the Fram Strait,and the Central Arctic Sea.The difference in sea-ice thickness among different SODA3 versions is primarily due to the thermodynamic contribution,which may come from the diversity of atmospheric forcing fields.Our work provides a reference for using SODA3 data to study Arctic sea ice.

关 键 词：Arctic sea-ice SODA3 simulation and evaluation sources of model error 

分 类 号：P731.15[天文地球—海洋科学] P714.1