首页|期刊导航|中国海洋湖沼学报（英文版）|Evaluation and fusion of SST data from MTSAT and TMI in East China Sea, Yellow Sea and Bohai Sea in 2008
中国海洋湖沼学报（英文版）2012，Vol.30Issue(4)：697-702,6.
Evaluation and fusion of SST data from MTSAT and TMI in East China Sea, Yellow Sea and Bohai Sea in 2008
Evaluation and fusion of SST data from MTSAT and TMI in East China Sea, Yellow Sea and Bohai Sea in 2008
摘要
Abstract
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/biasKey words
satellite SST/availability/fusion/root mean square/bias引用本文复制引用
WU Yumei,SHEN Hui,CUI Xuesen,YANG Shenglong,FAN Wei..Evaluation and fusion of SST data from MTSAT and TMI in East China Sea, Yellow Sea and Bohai Sea in 2008[J].中国海洋湖沼学报（英文版）,2012,30(4):697-702,6.基金项目
Supported by the Open Fund of the Key Laboratory of Ocean Circulation and 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 (863 Program) (Nos.2007AA092202,2008AA121701) （No.KLOCAW1010）
