Low clouds and fog along the South-Western African coast - Satellite-based retrieval and spatial patterns
Low clouds and fog along the South-Western African coast - Satellite-based retrieval and spatial patterns
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DOI：
10.1016/j.atmosres.2011.02.012
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发表时间：
2012-10-15
影响因子：
5.5
通讯作者：
Cermak, Jan
中科院分区：
文献类型：
--
作者：
Cermak, Jan
根据 Meteosat SEVIRI 卫星数据的评估，对西南非洲海岸的雾和低云的时空模式进行了表征。介绍了一种用于检测该地区雾/低云的技术，并使用 CALIOP 云激光雷达产品进行了 1 年的验证，表现出可靠的性能。通过将该技术系统地应用于 2004 年至 2009 年 7:00 UTC 和 14:00 UTC 的所有可用 Meteosat SEVIRI 场景，分析了研究区域中雾和低云的频率。鲸湾港周围地区出现频率最高，高峰出现在夏季。世界标准时间 14:00 之前，陆地上几乎所有地方的雾和低云都将消散。补充数据可在 doi:10.1594/PANGAEA.755427 获取。 (C) 2011 Elsevier B.V. 保留所有权利。
The spatial and temporal patterns of fog and low clouds along the South-Western African coast are characterized based on an evaluation of Meteosat SEVIRI satellite data. A technique for the detection of fog/low clouds in the region is introduced, and validated using 1 year of CALIOP cloud lidar products, showing reliable performance. The frequency of fog and low cloud in the study area is analyzed by systematic application of the technique to all available Meteosat SEVIRI scenes from 2004 to 2009, for 7:00 UTC and 14:00 UTC. The highest frequencies are encountered in the area around Walvis Bay, with a peak in the summer months. Fog and low clouds clear by 14:00 UTC almost everywhere over land. Supplementary data are available at doi:10.1594/PANGAEA.755427. (C) 2011 Elsevier B.V. All rights reserved.