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气象卫星遥感海面温度的资料处理关键环节是云检测(筛选晴空区)和大气削弱订正。目前卫星气象中心的卫星海面温度处理业务系统中,针对美国的NOAA 卫星是利用国际上普遍使用的红外窗区多通道法。对于中国发射的风云一号(FY-1)气象卫星,由于星载辐射计只有一个红外窗区通道能用于大气削弱订正,为此专门开发了单通道海面温度处理方法。文章介绍了两种方法的基本原理、算法和处理结果举例,并对两种方法的特点作了简要评价。
Meteorological satellite remote sensing Sea surface temperature data processing is the key link of cloud detection (screening of clear-air area) and correction of atmospheric weakening. At present, the satellite meteorological center satellite sea surface temperature processing business system, the United States for the NOAA satellite is the use of international commonly used infrared window multi-channel method. For the FY-1 meteorological satellite launched by China, a single-channel sea surface temperature processing method has been specially developed for this purpose because only one infrared window channel can be used for correction of atmospheric weakness. The article introduces the basic principles of the two methods, examples of algorithms and processing results, and briefly reviews the characteristics of the two methods.