基于Argo的SMAP与SMOS盐度产品质量评估与比对  

Assessment and Comparison of Sea Surface Salinity Data Derived From SMAP and SMOS Based on Argo Measurements

作　　者：曹凯翔 孙伟富 孟俊敏 张杰 CAO Kai-xiang;SUN Wei-fu;MENG Jun-min;ZHANG Jie(First Institute of Oceanography,MNR,Qingdao 266061,China)

机构地区：[1]自然资源部第一海洋研究所

出　　处：《海洋科学进展》2019年第4期574-587,共14页Advances in Marine Science

基　　金：国家重点研发计划项目——海洋气候数据集生成与分析(2016YFA0600102);全球变化与海气相互作用专项——东印度洋IND-YGST04区块海洋环境参数遥感调查Ⅱ期(GASI-02-IND-YGST2-04),西太平洋PAC-YGST04区块海洋环境参数遥感调查Ⅱ期(GASI-02-PAC-YGST2-04)和南海SCS-YGST04区块海洋环境参数遥感调查II期(GASI-02-SCS-YGST2-04)

摘　　要：以2016年SMAP 8日均、月均海表盐度(Sea Surface Salinity, SSS)产品与SMOS日均、月均SSS产品为研究对象,基于Argo浮标实测盐度数据与Argo月均盐度网格产品,进行了质量评估,并开展了SMAP和SMOS盐度遥感产品间的交叉比对。结果表明:SMAP 8日均、月均SSS产品均比SMOS日均、月均SSS产品更接近于Argo盐度数据;SMAP SSS产品在12个月里的标准差均小于SMOS SSS产品,SMAP SSS产品年均偏差与标准差在大部分海域小于SMOS SSS产品,除高纬度地区,4种SSS产品与Argo数据的平均偏差和标准差随纬度变化浮动不大;SMAP 8日均、月均与SMOS日均、月均产品的年平均SSS空间分布特征一致,SMAP 8日均与SMOS日均、SMAP与SMOS月均SSS产品间的年平均偏差在全球范围内总体在-0.50~0.50,标准差总体为0~1.00。In this paper, Sea Surface Salinity(SSS) products from SMAP(8 days and monthly average) and SMOS(daily and monthly) in 2016 were validated based on the Argo measurement. It’s found that SMAP SSS products showed better agreement than SMOS with the Argo data. The standard deviations of SMAP SSS products in all months were lower than those of SMOS products. The annual mean bias and standard deviation of SMAP SSS products were lower than SMOS in most areas. Except the high latitude areas, the bias and standard deviation between the four SSS products and Argo data varied little with latitude. The spatial distribution characteristics of the annual average of SMAP 8 days average/monthly SSS coincided with the annual average of SMOS daily/monthly SSS. The annual mean bias between SMAP and SMOS SSS products are among-0.5~0.5 with the standard deviation of 1.

关 键 词：海表盐度 SMAP SMOS Argo盐度 

分 类 号：P731.11[天文地球—海洋科学]