NOAA气象卫星云检测方法的研究

周红妹; 杨星卫; 陆贤

doi:10.11834/jrs.1995019

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NOAA气象卫星云检测方法的研究
Study on Detecting Cloud of NOAA Satellite Image
1995年第2期
纸质出版：1995
DOI： 10.11834/jrs.1995019
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[1]周红妹,杨星卫,陆贤.NOAA气象卫星云检测方法的研究[J].环境遥感,1995(02):137-142. DOI： 10.11834/jrs.1995019.

Study on Detecting Cloud of NOAA Satellite Image[J]. Journal of Remote Sensing, 1995, (2). DOI： 10.11834/jrs.1995019.

摘要

为了提高气象卫星资料的可用性，排除云干扰，本文根据云的时空分布变化特征，对可见光波段反射率和热红外波段温度进行分析和研究，提出了可见光反射率自动判云、热红外温度自动判云，可见光和热红外组合判云以及设立云区阈值判云等一系列检测方法。并对检测出的云区采用同周期相近时相的图像资料相对变化率来反演替代云区灰度值。保证了图像的连续性和客观性，取得了较好的效果。

Abstract

Cloud removing is a key to expand application of meteorological satel-lite data.This paper analyses the cloud reflectance in visible band and temperaturein thermal infrared band from their time and spatial distribution.It also puts for-ward to a serial of detecting cloud methods

including automatic detection usingreflectance of visible band and using temperature of thermal infrared band

detec-tion using the combination of them and using the threshold of cloudy region.Forcloudy region

the pixel values are substituted by the image data of same cycle andnear time after being calculated according their correlation with data of cloudyimage.The images have better effect in continuity and reality through above proces-sing.