| 应用FY-1D气象卫星监测雾(英文) |
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| 作者单位： | Wuhan Regional Climate Center 3 East Donghu Road，Wuhan 430074，China |
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| 基金项目： | Supported by FY Meteorology Satellite Remote Sensing Developing and Application Demonstration （No.FiDAF-2-01） |
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| 摘 要： | FY-1D is the second national operation meteorological satellite of China, and is much better compared to monitoring fog. However, research on monitoring fog using FY-1D is very few. In this paper, based on the typical FY-1D data, a fog＇s spectral characteristics in the different channels are analyzed using the histogram analysis method, and a method of monitoring fog using FY-1D is suggested. The results indicate that the 1st and 4th channels are the representative channels of FY-1D for the identification of fog. In the 1st channel, the fog is with uniform veins, smooth top, and clear-cut boundary, and its albedo is 20%-48%. In the 4th channel, the fog＇s brightness and temperature is 272-289K, and the difference value between the fog＇s and the ground surface＇s is not more than 6K.
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| 关 键 词： | 测绘技术 遥控技术 雾 光谱特征 |
| 收稿时间： | 1 April 2007 |
Monitoring fog using FY-1D meteorological satellite |
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| Authors: | Yitong Liang Xuan Chen Zhihong Xia |
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| Institution: | (1) Wuhan Regional Climate Center, 3 East Donghu Road, Wuhan, 430074, China |
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| Abstract: | FY-1D is the second national operation meteorological satellite of China, and is much better compared to monitoring fog. However, research on monitoring fog using FY-1D is very few. In this paper, based on the typical FY-1D data, a fog's spectral characteristics in the different channels are analyzed using the histogram analysis method, and a method of monitoring fog using FY-1D is suggested. The results indicate that the 1st and 4th channels are the representative channels of FY-1D for the identification of fog. In the 1st channel, the fog is with uniform veins, smooth top, and clear-cut boundary, and its albedo is 20%~48%. In the 4th channel, the fog's brightness and temperature is 272~289K, and the difference value between the fog's and the ground surface's is not more than 6K. |
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| Keywords: | fog FY-1D spectral characteristics |
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