多源星载辐射计SST数据对比分析  

Comparation Analysis of SST Data From Multi-source Satellite Radiometer

作　　者：李宇恒 孙伟富 曹凯翔 孟俊敏 张杰 LI Yu-heng;SUN Wei-fu;CAO Kai-xiang;MENG Jun-min;ZHANG Jie(College of Geodesy and Geomatics,Shandong University of Science and Technology,Qingdao 266590,China;First Institute of Oceanography,MNR,Qingdao 266061,China)

机构地区：[1]山东科技大学测绘科学与工程学院,山东青岛266590 [2]自然资源部第一海洋研究所,山东青岛266061

出　　处：《海洋科学进展》2021年第1期45-61,共17页Advances in Marine Science

基　　金：国家重点研发计划项目--基于卫星组网的海洋战略通道与战略支点环境安全保障决策支持系统研发与应用(2017YFC1405600)和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：基于2018年4种红外辐射计(MODIS-Aqua,MODIS-Terra,VIIRS和AVHRR)的SST数据和3种微波辐射计(GMI,WindSat和AMSR2)的SST数据,分析了7种星载辐射计SST数据的全球覆盖情况,利用Argo数据对7种辐射计SST数据进行了真实性检验,并开展了微波产品、红外产品和Argo的交叉比对分析。结果表明:VIIRS SST数据的覆盖率、有效覆盖天数均高于MODIS-Aqua、MODIS-Terra和AVHRR;AMSR2微波辐射计SST数据的覆盖率和有效覆盖天数均高于GMI和WindSat;4种红外辐射计SST数据与Argo浮标数据的平均偏差在-0.27~0℃,均方根误差小于0.76℃,其中VIIRS数据质量最好;3种微波辐射计SST数据与Argo浮标数据的平均偏差在-0.04~0.22℃,均方根误差小于0.88℃,其中AMSR2绝对偏差、标准偏差和均方根误差均小于其他2个微波辐射计数据。AMSR2和VIIRS的SST数据交叉对比发现,AMSR2与APDRC Argo、VIIRS与APDRC Argo的平均偏差分别小于0.15和-0.20℃,标准偏差分别小于0.52和0.60℃;AMSR2与VIIRS平均偏差在-0.23~-0.10℃,标准偏差小于0.41℃,两者具有较高的一致性。Based on the SST data from four satellite infrared radiometers(MODIS-Aqua,MODIS-Terra,VIIRS,AVHRR)and three microwave radiometers(GMI,WindSat,AMSR2)in 2018,the global ocean spatio-temporal coverage of these space-borne radiometer SST data was analyzed,followed by the comparison between satellite-derived(microwave and infrared)SST and Argo in situ measured ones.The results show that,the higher SST spatio-temporal coverage is achieved by VIIRS compared to MODIS-Aqua,MODIS-Terra and AVHRR.For the microwave radiometer observation,AMSR2 has the higher spatio-temporal coverage than GMI and WindSat.The average SST deviation between the four infrared radiometers and the Argo buoy measurement is between-0.27-0℃,and the root mean square error(RMSE)is less than 0.76℃;VIIRS SST exhibits the best quality.The average deviation between the three microwave radiometers and the Argo measurement ranges from-0.04℃to 0.22℃,and the RMSE is less than 0.88℃.The absolute deviation,standard deviation and RMSE of AMSR2 SST are lower than those of the other two microwave radiometers.The average(standard)deviation of AMSR2 and VIIRS SST with respect to the Argo measurement is less than 0.15℃(0.52℃)and-0.20℃(0.60℃),respectively.High consistency between AMSR2 and VIIRS SST is found,indicated by the average deviation ranging from-0.23℃to-0.10℃and the standard deviation of less than 0.41℃.

关 键 词：SST ARGO浮标 红外辐射计 微波辐射计 

分 类 号：P731[天文地球—海洋科学] TP79[自动化与计算机技术—检测技术与自动化装置]