On global changes in effective cloud height

被引：12

作者：

Evan, Amato T. ^{[1
]}

Norris, Joel R. ^{[1
]}

机构：

[1] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2012年 / 39卷

关键词：

Earth sciences - Radiometers - Satellite imagery;

D O I：

10.1029/2012GL053171

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Measurements by the Multiangle Imaging SpectroRadiometer (MISR) instrument exhibit a decreasing trend in global mean effective cloud top height (2000-2011). Here we show that this trend is likely related to an artifact in the data present during the early years of the MISR mission that caused a systematic reduction in the number of retrievals of clouds at lower elevations relative to clouds at higher elevations. After the application of a post-hoc method for removing the bias associated with missing retrievals the MISR effective cloud height anomalies exhibit a positive trend over time. Citation: Evan, A. T., and J. R. Norris (2012), On global changes in effective cloud height, Geophys. Res. Lett., 39, L19710, doi:10.1029/2012GL053171.

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