| Detection of nighttime sea fog/stratus over the Huanghai Sea using MTSAT-1R IR data |
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| 作者姓名： | GAO Shanhong WU Wei ZHU Leilei FU Gang HUANG Bin |
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| 作者单位： | GAO Shanhong,ZHU Leilei,FU Gang(Physical Oceanography Laboratory, Ocean University of China, Qingdao 266003, China);WU Wei(Physical Oceanography Laboratory, Ocean University of China, Qingdao 266003, China;Shandong Provincial Meteorological Institute, Jinan 250031, China);HUANG Bin(National Meteorological Center, China Meteorological Administration, Beijing 100081, China)
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展规划(973计划)，China Meteorological Administration's New Technology Extension Project，the National Special Fund for public Sector Research of Chin，Shandong Provincial Meteorological Bureau Science Fund of China |
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| 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 ...
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| 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 |
| 收稿时间： | 2008/3/25 0:00:00 |
| 修稿时间： | 2008/6/16 0:00:00 |
Detection of nighttime sea fog/stratus over the Huanghai Sea using MTSAT-1R IR data |
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| GAO Shanhong,WU Wei,ZHU Leilei,FU Gang,HUANG Bin.Detection of nighttime sea fog/stratus over the Huanghai Sea using MTSAT-1R IR data[J].Acta Oceanologica Sinica,2009,28(2):23-35. |
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| Authors: | GAO Shanhong WU Wei ZHU Leilei FU Gang and HUANG Bin |
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| Institution: | 1.Physical Oceanography Laboratory, Ocean University of China, Qingdao 266003, China2.Physical Oceanography Laboratory, Ocean University of China, Qingdao 266003, China;Shandong Provincial Meteorological Institute, Jinan 250031, China3.National Meteorological Center, China Meteorological Administration, Beijing 100081, China |
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| Abstract: | 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)-IR, 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℃ 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. |
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| Keywords: | Huanghai Sea nighttime sea fog MTSAT-1R dual channel difference method |
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