Evaluation and fusion of SST data from MTSAT and TMI in East China Sea, Yellow Sea and Bohai Sea in 2008

IOCAS-IR

	Evaluation and fusion of SST data from MTSAT and TMI in East China Sea, Yellow Sea and Bohai Sea in 2008
	Wu YM(伍玉梅); Shen H(申辉); Cui XS(崔雪森); Yang SL(杨胜龙); Fan W(樊伟)
发表期刊	Chinese Journal of Oceanology and Limnology
ISSN	0254-4059
	2012-07-15
出版年	2012
卷号	v.30 期号:04 页码:193-198
文献类型	CNKI期刊论文
摘要	Two typical satellite sea surface temperature (SST) datasets, from the Multi-functional Transport Satellite (MTSAT) and Tropical Rainfall Measuring Mission Microwave Imager (TMI), were evaluated for the East China Sea, Yellow Sea, and Bohai Sea throughout 2008. Most monthly-mean availabilities of MTSAT are higher than those of TMI, whereas the seasonal variation of the latter is less than that of the former. The analysis on the one-year data shows that the annual mean availability of MTSAT (61%) is greater than that of TMI (56%). This is mainly because MTSAT is a geostationary satellite, which achieves longer observation than the sun-synchronous TMI. The daily availability of TMI (28%-75%) is more constant than that of MTSAT (9%-93%). The signal of infrared sensors on MTSAT is easily disturbed on cloudy days. In contrast, the TMI microwave sensor can obtain information through clouds. Based on in-situ SSTs, the SST accuracy of TMI is superior to that of MTSAT. In 2008, the root mean square (RMS) error of TMI and MTSAT were 0.77 K and 0.84 K, respectively. The annual mean biases were 0.14 K (TMI) and -0.31 K (MTSAT). To attain a high availability of SSTs, we propose a fusion method to merge both SSTs. The annual mean availability of fusion SSTs increases 17% compared to MTSAT. In addition, the availabilities of the fusion SSTs become more constant. The annual mean RMS and bias of fusion SSTs (0.78 K and -0.06 K, respectively) are better than those of MTSAT (0.84 K and -0.31 K).
关键词	satellite SST availability fusion root mean square bias
CNKI专辑号	A;
CNKI专辑名称	基础科学;
CNKI专题号	A010;
CNKI专题名称	海洋学;
分类号	P731.11
收录类别	中科院核心
语种	英文;
资助项目(基金）	Supported by the Open Fund of the Key Laboratory of Ocean Circulationand Waves,Chinese Academy of Sciences(No.KLOCAW1010) ; the Knowledge Innovation Program of Chinese Academy of Sciences(No.KZCX1-YW-12-04) ; the National High Technology Research and Development Program of China(863Program)(Nos.2007AA092202,2008AA121701)
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/191193
专题	中国科学院海洋研究所
作者单位	1.KeyLaboratoryofMarineandEstuarineFisheries,MinistryofAgriculture,EastChinaSeaFisheriesResearchInstitute 2.InstituteofOceanology,ChineseAcademyofSciences
推荐引用方式 GB/T 7714	Wu YM,Shen H,Cui XS,et al. Evaluation and fusion of SST data from MTSAT and TMI in East China Sea, Yellow Sea and Bohai Sea in 2008. 2012.