Hydrometeor detection using Cloudsat -: An earth-orbiting 94-GHz cloud radar
Hydrometeor detection using Cloudsat -: An earth-orbiting 94-GHz cloud radar
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DOI：
10.1175/2007jtecha1006.1
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发表时间：
2008-04-01
影响因子：
2.2
通讯作者：
Stephens, Graeme
中科院分区：
文献类型：
--
作者：
Marchand, Roger;Mace, Gerald G.;Stephens, Graeme
2006 年 4 月下旬，美国宇航局发射了 Cloudsat，这是一颗地球观测卫星，它使用近天底指向的毫米波雷达来探测云和降水的垂直结构。使用 Cloudsat 测量的第一步是将云和其他水凝物与雷达噪声区分开来。本文描述了可操作的 Cloudsat 水凝物探测算法，讨论了由于表面杂波造成的困难，并展示了早期任务的几个例子。还提供了 Cloudsat 水凝物检测算法与云气溶胶激光雷达和红外探路者卫星观测 (CALIPSO) 卫星基于激光雷达的结果的初步比较。
In late April 2006, NASA launched Cloudsat, an earth-observing satellite that uses a near-nadir-pointing millimeter-wavelength radar to probe the vertical structure of clouds and precipitation. The first step in using Cloudsat measurements is to distinguish clouds and other hydrometeors from radar noise. In this article the operational Cloudsat hydrometeor detection algorithm is described, difficulties due to surface clutter are discussed, and several examples from the early mission are shown. A preliminary comparison of the Cloudsat hydrometeor detection algorithm with lidar-based results from the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) satellite is also provided.