| 2009-18年西北太平洋区域海洋再分析CORA1.0产品研制及检验 |
| |
| 作者姓名： | Guofang Chao Xinrong Wu Lianxin Zhang Hongli Fu Kexiu Liu Guijun Han |
| |
| 作者单位： | College of Oceanic and Atmospheric Sciences,Ocean University of China,Qingdao,China;Key Laboratory of Ministry of Natural Resources for Marine Environmental Information Technology,National Marine Data and Information Service,Ministry of Natural Resources,Tianjin,China;Key Laboratory of Ministry of Natural Resources for Marine Environmental Information Technology,National Marine Data and Information Service,Ministry of Natural Resources,Tianjin,China;School of Marine Science and Technology,Tianjin University,Tianjin,China |
| |
| 摘 要： | 在51年(1958-2008)西北太平洋区域海洋再分析CORA1.0产品的基础上,改进了模式配置和同化方法,研制了2009-18年的CORA产品并对其进行以下检验:(1)温盐和海表高度异常均方根误差分布检验;(2)35°N处温度断面分布检验;(3)再分析流场和表漂浮标轨迹对比检验.结果显示,2009-18年的CORA产品可以再现海洋要素长时间序列,时空多尺度的变化特征,为研究特征海洋现象和过程提供背景信息.
|
| 关 键 词： | 中国海洋再分析 检验 多重网格三维变分数据同化 |
China Ocean Re Analysis(CORA)version 1.0 products and validation for 2009-18 |
| |
| Guofang Chao,Xinrong Wu,Lianxin Zhang,Hongli Fu,Kexiu Liu,Guijun Han.China Ocean Re Analysis(CORA)version 1.0 products and validation for 2009-18[J].Atmospheric and Oceanic Science Letters,2021,14(5):37-41. |
| |
| Authors: | Guofang Chao Xinrong Wu Lianxin Zhang Hongli Fu Kexiu Liu Guijun Han |
| |
| Abstract: | China Ocean ReAnalysis(CORA)version 1.0 products for the period 2009-18 have been developed and validated.The model configuration and assimilation algorithm have both been updated compared to those of the 51-year(1958-2008)products.The assimilated observations include temperature and salinity field data,satellite remote sensing sea surface temperature,and merged sea surface height(SSH)anomaly data.The validation includes the following three aspects:(1)Temperature,salinity,and SSH anomaly root-mean-square errors(RMSEs)are com-puted as a primary evaluation of the reanalysis quality.The 0-2000 m domain-averaged RMSEs of temperature and salinity are 0.61℃and 0.08 psu,respectively.The SSH anomaly RMSE is less than 0.2 m in most regions.(2)The 35°N temperature section is used to evaluate the ability to reproduce the thermocline,mixing layer,and Yellow Sea cold water mass.In summer,the thermocline is reinforced,with the gradient changing from 3℃in May to 10℃in August.The mixing-layer depth reproduced by CORA is consistent with that computed from the observed climatology.The Yellow Sea cold water mass forms at a depth of 50 m.(3)The reanalysis current is examined against the tracks of some drifting buoys.The results show that the reanalysis current can capture the mesoscale eddies near the Kuroshio,which are similar to those described by the drifting buoys.Overall,the 2009-18 CORA reanalysis products are capable of reproducing major oceanic phenomena and processes in the coastal waters of China and adjacent seas. |
| |
| Keywords: | China Ocean ReAnalysis(CORA) Validation Multigrid 3D-Var assimilation |
| 本文献已被 万方数据 等数据库收录！ |
|
