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气象:2007,33(10):68-72
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应用FY-1D气象卫星监测雾
(1.武汉区域气候中心,430074;2.武汉中心气象台)
Application of FY-1D Meteorological Satellite to Monitoring of Fog
(1.Wuhan Regional Climate Center, Wuhan 430074;2.Wuhan Central MeteorotogicalObservatory)
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投稿时间:2007-02-12    修订日期:2007-07-10
中文摘要: 简要介绍了FY 1D气象卫星的特点。利用典型的FY 1D资料,通过直方图分析法 ,探讨了雾在FY 1D不同通道的光谱特征。分析结果表明,可见光通道1和红外通道4是FY 1D卫星监测雾的代表通道。通道1图像上,雾的反照率在20%~48%之间,且纹理均匀,顶部 光滑,边缘清晰,而通道4图像上,雾的亮温在272~289K之间,与地表温差不超过6K。
中文关键词: 雾-FY-1D气象卫星  光谱特征
Abstract:The characteristics of FY 1D meteorological satellite are briefly int roduced. Based on the typical case of FY 1D data, the spectral characteristics of fog in the different channels of FY 1D are analyzed by using the histogram a nalysis method. The results indicate that the channel 1 and 4 are the represent ative channels of FY 1D for the identification of fog. In the channel 1, fog is with uniform texture, smooth top, and clear cut boundary, and its albedo is ab out 20%~48%. In the channel 4, the brightness temperature of fog is 272~289K, and the difference value between the fog and the ground surface is no more than 6K.
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梁益同,张家国,刘可群,黄靖,2007.应用FY-1D气象卫星监测雾[J].气象,33(10):68-72.
Liang Yitong,Zhang Jiaguo,Liu Kequn,Huang Jing,2007.Application of FY-1D Meteorological Satellite to Monitoring of Fog[J].Meteor Mon,33(10):68-72.