北半球冬季和夏季CALIOP 瞬态响应差异性

大气与环境光学学报 ›› 2014, Vol. 9 ›› Issue (4): 295-299.

北半球冬季和夏季CALIOP 瞬态响应差异性

晏怀斌, 吴东

（中国海洋大学信息科学与工程学院海洋技术系，山东青岛266100）

收稿日期:2014-01-17 修回日期:2014-02-10 出版日期:2014-07-24 发布日期:2014-07-24
通讯作者: 晏怀斌（1986-)，男，河南周口人，研究生，研究方向：海洋光学与激光遥感. E-mail:yanhuaibinhappy@163.com
作者简介:晏怀斌（1986-)，男，河南周口人，研究生，研究方向：海洋光学与激光遥感.
基金资助:
国家自然科学基金项目（41076116、41228008）资助

Difference of CALIOP Transient Response Between Winter and Summer in Northern Hemisphere

YAN Huai-bin, WU Dong

(Department of Marine Technology, College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China)

Received:2014-01-17 Revised:2014-02-10 Published:2014-07-24 Online:2014-07-24

摘要/Abstract

摘要：

利用2008年冬季和夏季星载激光雷达CALIOP版本3一级数据产品，分别对北半球两个季节CALIOP 532 nm垂直通道和平行通道的瞬态响应进行统计分析，对比可知北半球冬季和夏季的瞬态响应具有明显的差异。由于南极大陆和格陵兰岛常年被冰雪覆盖，利用CALIOP在该区域的数据得到532 nm垂直和平行通道的瞬态响应函数作为冰雪后向散射特性，并以此作为判断冰雪的依据。北半球冬季有41.8%的数据点和夏季数据点的特性保持一致，表明这些点未被冰雪覆盖。而其它58.2%的数据点的特性和南极大陆以及格陵兰岛数据点特性一致，表明这些点被冰雪覆盖。

关键词: 星载激光雷达, 光电倍增管, 瞬态响应

Abstract:

The transient responses of the CALIOP instrument in the 532 nm parallel and perpendicular channel are derived and analyzed from the CALIOP level 1 version 3 products in the winter and summer of 2008. The results show that there is great difference between winter and summer in northern hemisphere. For the reason that Antarctic and Greenland are almost entirely covered by snow and ice all the year round, the characteristic of transient response on these land cloud be a basis for judging whether the transient response is caused by snow or ice in somewhere else. The distribution statistics of about 41.8% samples in winter are the same as that of the samples in summer in northern hemisphere. It means these areas are not covered by snow and ice. The other 52.8% samples’ statistics are consistent with the samples on Antarctic and Greenland, indicating that these areas are covered by snow and ice.

Key words: CALIOP, PMT, transient response

中图分类号:

晏怀斌吴东. 北半球冬季和夏季CALIOP 瞬态响应差异性[J]. 大气与环境光学学报, 2014, 9(4): 295-299.

YAN Huai-Bin, Wu-Dong. Difference of CALIOP Transient Response Between Winter and Summer in Northern Hemisphere[J]. Journal of Atmospheric and Environmental Optics, 2014, 9(4): 295-299.

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