Modeling of Arctic Sea Ice Variability During 1948–2009: Validation of Two Versions of the Los Alamos Sea Ice Model(CICE)  

作　　者：WU Shu-Qiang ZENG Qing-Cun BI Xun-Qiang 

机构地区：[1]Climate Change Research Center, Institute of Atmospheric Physics, Chinese Academy of Sciences [2]University of Chinese Academy of Sciences [3]International Center for Climate and Environment Sciences, Institute of Atmospheric Physics, Chinese Academy of Sciences

出　　处：《Atmospheric and Oceanic Science Letters》2015年第4期215-219,共5页大气和海洋科学快报（英文版）

基　　金：supported by the National Basic Research Program of China(Grant No.2010CB951804);the China Meteorological Administration Special Fund for Scientific Research in the Public Interest(Grant No.GYHY201206008)

摘　　要：The Los Alamos sea ice model(CICE) is used to simulate the Arctic sea ice variability from 1948 to 2009. Two versions of CICE are validated through comparison with Hadley Centre Global Sea Ice and Sea Surface Temperature(Had ISST) observations. Version 5.0 of CICE with elastic-viscous-plastic(EVP) dynamics simulates a September Arctic sea ice concentration(SASIC) trend of –0.619 × 1012 m2 per decade from 1969 to 2009, which is very close to the observed trend(-0.585 × 1012 m2 per decade). Version 4.0 of CICE with EVP dynamics underestimates the SASIC trend(-0.470 × 1012 m2 per decade). Version 5.0 has a higher correlation(0.742) with observation than version 4.0(0.653). Both versions of CICE simulate the seasonal cycle of the Arctic sea ice, but version 5.0 outperforms version 4.0 in both phase and amplitude. The timing of the minimum and maximum sea ice coverage occurs a little earlier(phase advancing) in both versions. Simulations also show that the September Arctic sea ice volume(SASIV) has a faster decreasing trend than SASIC.The Los Alamos sea ice model（CICE） is used to simulate the Arctic sea ice variability from 1948 to 2009. Two versions of CICE are validated through comparison with Hadley Centre Global Sea Ice and Sea Surface Temperature（Had ISST） observations. Version 5.0 of CICE with elastic-viscous-plastic（EVP） dynamics simulates a September Arctic sea ice concentration（SASIC） trend of –0.619 × 1012 m2 per decade from 1969 to 2009, which is very close to the observed trend（-0.585 × 1012 m2 per decade）. Version 4.0 of CICE with EVP dynamics underestimates the SASIC trend（-0.470 × 1012 m2 per decade）. Version 5.0 has a higher correlation（0.742） with observation than version 4.0（0.653）. Both versions of CICE simulate the seasonal cycle of the Arctic sea ice, but version 5.0 outperforms version 4.0 in both phase and amplitude. The timing of the minimum and maximum sea ice coverage occurs a little earlier（phase advancing） in both versions. Simulations also show that the September Arctic sea ice volume（SASIV） has a faster decreasing trend than SASIC.

关 键 词：Arctic sea ice trend analysis model validation Los Alamos sea ice model（CICE） 

分 类 号：P731.15[天文地球—海洋科学]