LICOM海洋模式对南大洋环流的模拟评估  

An Assessment of Southern Ocean Circulation Simulation by LASG/IAP Climate system Ocean Model

作　　者：白佳慧 刘海龙[1,2] 李逸文 林鹏飞 于子棚[1,2] BAI Jiahui;LIU Hailong;LI Yiwen;LIN Pengfei;YU Zipeng(State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029;College of Earth and Planetary Sciences,University of Chinese Academy of Sciences,Beijing 100049)

机构地区：[1]中国科学院大气物理研究所大气科学和地球流体力学数值模拟国家重点实验室,北京100029 [2]中国科学院大学地球与行星科学学院,北京100049

出　　处：《气候与环境研究》2023年第1期74-88,共15页Climatic and Environmental Research

基　　金：国家重点研发计划2020YFA0608902、2018YFA0605703;国家自然科学基金项目41931183、41976026。

摘　　要：使用中国科学院大气物理研究所大气科学和地球流体力学数值模拟国家重点实验室(LASG/IAP)开发的第三代气候海洋模式(LASG/IAP Climate system Ocean Model version 3,LICOM3.0)低分辨率版本在海洋模式比较计划(Ocean Model Intercomparison Project,OMIP)试验中的模拟数据,描述了南极绕极流(Antarctic Circumpolar Current,ACC)和南大洋经向翻转环流(Meridional Overturning Circulation,MOC)在1958-2009年的平均状态及其变化,并与已有的模式模拟结果和观测结果对比以评估LICOM模式的模拟效果.通过对比已有模式模拟数据发现,LICOM3.0模式模拟的ACC和南大洋MOC在两组OMIP试验中平均状态相仿、结果在合理范围内,但OMIP1试验中海表强迫的变化趋势较OMIP2试验中的变化更大,得到的环流输送在OMIP1试验中增长趋势也更大.An analysis of the Antarctic Circumpolar Circulation(ACC)and the southern ocean Meridional Overturning Circulation(MOC)simulated by the LICOM3.0 using the model outputs obtained from the Ocean Model Intercomparison Project(OMIP)is presented in this article.The mean,variability,and trends of the ACC and MOC over the 1958–2009 period are focused and their relationships with the surface forcing are studied.The model results are compared with available observations,simulation results from other models having finer resolutions,and also with theoretical constraints to check the reliability of the simulations.Generally,the ACC and the Southern Ocean MOC simulated by LICOM3.0 have a similar and reasonable mean state in the two experiments,presenting similar trends from 1958–2009.However,Southern Ocean transport has a larger trend in the OMIP1 experiment,which is related to surface forces.Their correlation needs to be studied further.

关 键 词：南大洋 南极绕极流 经向翻转环流 LICOM模式 

分 类 号：P733[天文地球—物理海洋学]