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遥感技术与应用  2008, Vol. 23 Issue (5): 495-499    DOI: 10.11873/j.issn.1004-0323.2008.5.495
技术研究与图像处理     
我国东海海面温度定量遥感反演研究
朱利1,2,3,顾行发3,王桥1,2,余涛3,李莉3
(1.中国环境监测总站,北京 100029,2.国家环保部环境卫星筹备办公室,北京 100029;
3.中国科学院遥感应用研究所,北京 100101)
A Regional Algorithm to Estimate Sea Surface Temperature in the East China Sea
ZHU Li1,2,3,GU Xing-fa3,WANG Qiao1,2,YU Tao3, LI Li3
(1.China Environmental Monitoring Centre,Beijing 100029,China|2.Environmental Satellite Center Preparing Office,National Environmental Protection Ministry,Beijing 100029,China;3.Institute of Remote Sensing Applications of Chinese Academy of Sciences,Beijing 100101,China)
 全文: PDF(915 KB)  
摘要:

提出了利用Terra卫星的MODIS的20、29、31 和32红外通道数据来反演我国东海海面温度的区域SST反演算法。算法的系数是通过辐射传输模型MODTRAN 4,输入TIGR大气廓线库中中国东海附近的大气廓线进行辐射传输模拟获得。通过MODIS的SST产品MOD28数据以及实测海面浮标数据进行算法精度验证,验证结果显示,该算法获得的SST分布与MOD28产品相吻合;用21个实测浮标数据为真值,算法精度为0.98 K,RMSE为1 K,而MOD28的精度为1.29 K,RMSE为1.26 K,该算法精度优于MODIS的SST产品精度;卫星观测角度在40°以内精度为0.68 K,大于40°精度降低到1.16 K,对于大观测角度的SST反演,算法还有待改进。

关键词: SST东海Terra/MODISMODTRANSST反演算法验证    
Abstract:

This paper proposes a regional algorithm to estimate sea surface temperature (SST) in the East China Sea has been developed using MODIS data aboard Terra and the coefficients of the algorithm were ascertained using MODTRAN 4.0 code and TIGR profiles.The East China Sea's 24 profiles were chosen from TIGR database to input the MOTRAN4 code to calculate the at sensor apparent brightness temperatures in MODIS band 20,29,31 and 32 under 21 observation angles (from 0 to 65 degree) and the coefficients were obtained from the 3,528 samples using the least square method.The preliminary results show a good agreement between SSTs estimated by the proposed algorithm for Terra MODIS data and MODIS SST products.The comparison of the SSTs estimated by the proposed algorithm with concurrent in situ data showed an accuracy of about 1K.With observation angles increase the accuracy deduced from 0.68K to 1.16K.The accuracy of the proposed algorithm was better than that used in MOD28.Our future work would be conducted to collect more profiles and in situ data and improve the accuracy of our algorithm in large observation angles.

Key words: Sea surface temperature    East China Sea    TERRA/MODIS    MODTRAN    SST retrieval algorithm    Validation
收稿日期: 2008-03-17 出版日期: 2011-11-07
:  TP 79  
基金资助:

国家科技支撑项目(2006BAC08B05)及国家高技术研究发展计划“863计划”(2006AA12Z113)资助。

作者简介: 朱利(1978-),男,博士,主要从事水环境遥感监测、热红外定量遥感及辐射定标和真实性检验等研究工作。E-mail:zlpinan@163.com。
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引用本文:

朱利,顾行发,王桥,余涛,李莉. 我国东海海面温度定量遥感反演研究[J]. 遥感技术与应用, 2008, 23(5): 495-499.

ZHU Li,GU Xing-fa,WANG Qiao,YU Tao, LI Li. A Regional Algorithm to Estimate Sea Surface Temperature in the East China Sea. Remote Sensing Technology and Application, 2008, 23(5): 495-499.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2008.5.495        http://www.rsta.ac.cn/CN/Y2008/V23/I5/495

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