Cloud Clearing over the Ocean in the Processing of Data from the Along-Track Scanning Radiometer (ATSR)
Cloud Clearing over the Ocean in the Processing of Data from the Along-Track Scanning Radiometer (ATSR)
复制标题
沿轨扫描辐射计 (ATSR) 数据处理中的海洋云清除
DOI：
10.1175/1520-0426(2000)017
复制
发表时间：
2000
影响因子：
2.2
通讯作者：
D. Llewellyn
中科院分区：
文献类型：
--
作者：
A. Zȧvody;C. Mutlow;D. Llewellyn
摘要红外辐射计在观测路径上存在云时，地表参数的测量容易产生误差，而沿轨扫描辐射计（ATSR）具有新颖的双视角特性，能够比以往的仪器更精确地校正晴空大气的吸收效应，因此，在这种情况下，反演的地表温度不被云污染尤为重要。介绍了ATSR数据常规处理过程中云的识别算法。这些测试在很大程度上依赖于以前通过使用高级甚高分辨率辐射计（AVHRR）的数据所获得的经验。对原始AVHRR试验的修改和开发的新试验进行了详细说明。
Abstract Infrared radiometric measurements of surface parameters are prone to error if clouds are present in the observation path. The along-track scanning radiometer (ATSR) with its novel dual-view feature is able to correct for absorption effects in the clear atmosphere more precisely than previous instruments; hence, it is especially important in this case for the retrieved surface temperatures not to be cloud contaminated. The algorithms used for identifying cloud in the routine processing of the ATSR data are described. These tests rely heavily on the previous experience gained by using data from the Advanced Very High Resolution Radiometer (AVHRR). Modifications to the original AVHRR tests, and the new tests developed, are given in detail.