Detection of nighttime sea fog/stratus over the Huang-hai Sea using MTSAT-1R IR data

查看全文 作　　者：GAO [1]Shanhong;WU [1,2]Wei;ZHU [1]Leilei;FU [1]Gang;HUANG [3]Bin

机构地区：[1]Physical Oceanography Laboratory, Ocean University of China, Qingdao 266003, China;[2]Shandong Provincial Meteorological Institute, Jinan 250031, China;[3]National Meteorological Center, China Meteorological Administration, Beijing 100081, China

出　　处：《Acta Oceanologica Sinica》索引2009年第28卷第2期,共13页

基　　金：The National Natural Science Foundation of China under contract No. 40706004;the National Basic Research Program ('973' program) of China under contract No. 2005CB422301;China Meteorological Administration’s New Technology Extension Project under contract No. CMATG2008M41;the National Special Fund for public Sector Research of China under contract No. GYHY200706031;Shandong Provincial Meteorological Bureau Science Fund of China under contract No. 2004SDQXJ01. 摘　　要：A dual channel difference (DCD) method is applied to detect nighttime sea fog/stratus over the Huanghai Sea using the infrared (IR) data of shortwave (3.5–4.0 μm) and longwave (10.3–11.3 μm) channels from the Multi-functional Transport Satellite (MTSAT)-1R, i.e., shortwave minus longwave brightness temperature difference (SLTD). Twenty-four sea fog events over the Huanghai Sea during March to July of 2006 and 2007 are chosen to determine a suitable value of SLTD for nighttime sea fog/stratus detection, and it is found that the value of –5.5––2.5°C can be taken as a criterion. Two case examples of sea fog events are especially demonstrated in detail utilizing the criterion, and the results show that the derived sea fog/stratus coverage is quite reasonable. This coverage information is very helpful to analyze the formation and evolution of sea fog/stratus during night and can provide sea fog researchers with observational evidences for model results verification. However, more efforts are needed to further obtain vertical extent information of sea fog/stratus and attempt to discriminate between sea fog and stratus. 关键词：MTSAT 红外光谱云检测海雾层云 HAL 黄东海多功能运输卫星

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Detection of nighttime sea fog/stratus over the Huang-hai Sea using MTSAT-1R IR data

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