Freshening biases in the freshwater flux of CORE data  

作　　者：JIN Jiang-Bo ZENG Qing-Cun LIU Hai-Long WU Lin 

机构地区：[1]International Center for Climate and Environment Sciences(ICCES),Institute of Atmospheric Physics(IAP),Chinese Academy of Sciences(CAS),Beijing,China [2]College of Earth Science,University of Chinese Academy of Sciences,Beijing,China [3]State Key Laboratory of Numerical Modeling for Atmospheric Science and Geophysical Fluid Dynamics(LASG),IAP,CAS,Beijing,China [4]State Key Laboratory of Atmospheric Boundary Layer physics and Atmospheric chemistry(LAPC),IAP,CAS,Beijing,China

出　　处：《Atmospheric and Oceanic Science Letters》2016年第5期361-365,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 number 2013CB956204);the Strategic Priority Research Program of the Chinese Academy of Sciences(grant numbers XDA11010403 and XDA11010304)

摘　　要：The authors investigate biases in the freshwater flux（FWF） of CORE.v2—a common data-set for stand-alone ocean models—based on the results of a set of experiments using an OGCM. The authors identify freshening biases in the FWF in the subtropical regions of the North Pacific, South Pacific, and South Atlantic, which may be caused by the weak surface wind, high specific humidity,or high precipitation in the CORE.v2 data. The authors also find biases in sea surface salinity that are caused by ocean dynamics, such as in the North Atlantic, and that cannot be corrected by correcting surface forcing.CORE.v2是单独海洋环流模式常用的强迫场,其微弱的偏差会造成模拟结果巨大的差异。因此,本文使用单独的海洋环流模式LICOM2.0对CORE.v2的强迫场进行了验证。结果表明,在北大西洋和太平洋的副热带区域的淡水通量有使海表盐度变淡的偏差的作用,这可能是由于CORE.v2中的弱的表面风,强的比湿或者过多的降水所造成的。另外,在北大西洋高纬度区域的海表盐度变淡的偏差主要是与海洋动力学过程有关而非强迫场所造成的。

关 键 词：Freshwater flux CORE.v2 LICOM2.0 

分 类 号：P731.2[天文地球—海洋科学]