The Application of ARGO Data to the Global Ocean Data Assimilation Operational System of NCC
The Application of ARGO Data to the Global Ocean Data Assimilation Operational System of NCC
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发表时间：
2005
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通讯作者：
Liu;Yimin;Zhang;Renhe;Yin;Yonghong;Niu;Tao
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作者：
Liu;Yimin;Zhang;Renhe;Yin;Yonghong;Niu;Tao
本文对ARGO资料在中国国家气候中心全球海洋资料同化系统(NCC-GODAS)中的应用进行了初步研究，该系统主要包括资料前处理、实时风应力计算、变分分析与内插、海洋动力模式4个子系统。为了使用ARGO数据，在各子系统的相应方面进行了相应的调整和改进。使用了1981年至2003年的观测数据，包括2001年至7月的ARGO数据。2003年，我们对该系统进行了一系列的数值实验。将ARGO资料与NCEP的相应结果进行了比较，结果表明，ARGO资料对中太平洋地区NCC-GODAS的SST、SSTA(SST异常)、Nino指数、次表层温度等结果有较大的改善作用，另外，在大西洋、印度洋和热带太平洋等其他地区，NCC-GODAS资料对NCC-GODAS的贡献要远大于热带太平洋地区。
In this paper, we have preliminarily studied the application of ARGO (Array for Real-time Geostrophic Oceanography) data to the Global Ocean Data Assimilation System of National Climate Center of China (NCC-GODAS), which mainly contains 4 sub-systems such as data preprocessing, real-time wind stress calculating, variational analysis and interpolating, and ocean dynamic model. For the sake of using ARGO data, the relevant adjustment and improvement have been made at the corresponding aspects in the sub- systems. Using the observation data from 1981 to 2003 including the ARGO data of 2001 to July. 2003, we have performed a series of numerical experiments on this system. Comparing with the corresponding results of NCEP, It is illustrated that using ARGO data can improve the results of NCC-GODAS in the region of the Middle Pacific, for instance SST, SSTA (SST anomalies), Nino index, sea sub-surface temperature, etc. Furthermore, it is obtained that NCC-GODAS benefits from ARGO data in the other regions such as Atlantic Ocean, Indian Ocean, and extratropical Pacific Ocean much more than in the tropical Pacific.