一个具有高分辨率海洋分量的海气耦合模式

张韬; 郭裕福; 吴国雄

一个具有高分辨率海洋分量的海气耦合模式

中国科学院大气物理研究所大气科学与地球流体力学国家重点实验室, 北京 100029

资助项目:

国家基金委项目 40135020和4002300

中国科学院知识创新工程重要方向项目 ZKCX2中科创新2-SW-210

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- 被引次数: 0
出版历程
- 收稿日期: 2001-09-29
- 修回日期: 2002-04-04
- 刊出日期: 2002-12-31

A COUPLED OCEAN-ATMOSPHERE MODEL WITH A HIGHER RESOLUTION OCEANIC COMPONENT

State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029

摘要

摘要: 发展了中国科学院大气物理研究所（IAP）大气科学与地球流体力学数值模拟国家重点实验室(LASG)全球海-陆-气耦合系统模式的一个新版本（GOALS-5），其中海洋分量是基于30层高分辨率的海洋环流模式。对该耦合模式成功地进行了30年的积分，基本上克服了气候飘移。与GOALS较早的几个版本模拟的SST相比，北半球夏季中高纬地区的误差显著改善，可能主要是由于采用了GM90的等密度混合方案使经向热输送增强的结果。对赤道中东太平洋冷暖事件有较好的模拟能力，并且对SST变率的模拟在位置和强度上比旧版本有明显改善。
- 海-气耦合模式;
- 高分辨率海洋分量;
- SST等密度混合方案
Abstract: A new version of the IAP/LASG Global Ocean-Atmosphere-Land System (GOALS) model (called GOALS-5) with a higher resolution Oceanic General Circulation Model (OGCM) component is developed. GOALS-5 has been integrated successfully for 30 years without climate drift. The SST simulated by GOALS-5 in mid-and high-latitudes for the Northern Hemisphere summer is greatly improved in contrast with the results simulated by several old versions, which is maybe attributed to an enhanced meridional heat transport resulting mainly from the use of GM90 isopycnal mixing scheme. The new model version also has the ability to simulate the warm and cold events over the central and eastern equatorial Pacific. In comparison with the previous versions, the simulated amplitude and location of SST anomaly in the tropical Pacific is ameliorated in the new model
- Coupled ocean-atmosphere model;
- High resolution oceanic component;
- SST Isopycnal mixing scheme

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图 1 GOALS-5 模拟的逐月全球平均海表温度(SST)随时间的变化

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图 2 GOALS-5 模拟的30 年平均冬季(a)和夏季(b)的全球海表温度(SST)的分布(单位:℃)

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图 3 GOALS-5 和GOALS-1.1 以及观测的冬季(a)和夏季(b)的海表温度(SST)的纬向平均图(单位:℃)

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图 4 GOALS-5 模拟的南北纬45°之间太平洋SST 距平EOF 分析的第一模态(a) 及其对应的时间系数(b)

(b 图中虚线分别表示正负一个标准偏差)

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图 5 GOALS-5 模拟的赤道地区(4°S-4°N)平均的 SS T 距平的时间-经度剖面图(单位:℃)

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