Arid
DOI10.1016/S0169-8095(01)00104-1
Observed effects of particles nonsphericity on the retrieval of marine and desert dust aerosol optical depth by lidar
Gobbi, GP; Barnaba, F; Blumthaler, M; Labow, G; Herman, JR
通讯作者Gobbi, GP
来源期刊ATMOSPHERIC RESEARCH
ISSN0169-8095
出版年2002
卷号61期号:1页码:1-14
英文摘要

Polarization lidar observations of maritime and Saharan dust aerosols collected at Crete (35.5degreesN-23.7degreesE) during the May 1999 PAUR 11 campaign are discussed. Lidar traces are inverted and integrated to provide aerosol optical depth at 532 nm. Two model relationships linking together aerosol backscatter and extinction coefficients are employed to perform such an inversion: one obtained employing the Mic theory, i.e., considering both maritime and dust particles as spheres, and a second one obtained by modeling dust particles as spheroids. The resulting two sets of aerosol optical depths are then compared to the ones measured by two independent, ground-based sunphotometers. These comparisons show that a good agreement exist between both lidar inversions and photometer-derived aerosol optical depths. However, the lidar retrieval employing the nonspherical model leads to a better agreement with photometric data when desert dust is observed. Average lidar-sunphotometer aerosol optical depth differences range between 12% and 24%. These values are comparable and sometimes smaller than ones observed to occur between the two sunphotometers employed in this exercise. (C) 2002 Elsevier Science B.V. All rights reserved.


英文关键词desert dust nonspherical aerosol scattering lidar
类型Article
语种英语
国家Italy ; Austria ; USA
收录类别SCI-E
WOS记录号WOS:000173291600001
WOS关键词MINERAL DUST ; EXTINCTION ; BACKSCATTER ; RATIO ; SENSITIVITY ; ABSORPTION ; SURFACE ; VOLUME
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/142127
作者单位(1)CNR, Ist Fis Atmosfera, I-00133 Rome, Italy;(2)CNR, Ist Inquinamento Atmosfer, Rome, Italy;(3)Univ Innsbruck, Inst Med Phys, A-6020 Innsbruck, Austria;(4)NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
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GB/T 7714
Gobbi, GP,Barnaba, F,Blumthaler, M,et al. Observed effects of particles nonsphericity on the retrieval of marine and desert dust aerosol optical depth by lidar[J],2002,61(1):1-14.
APA Gobbi, GP,Barnaba, F,Blumthaler, M,Labow, G,&Herman, JR.(2002).Observed effects of particles nonsphericity on the retrieval of marine and desert dust aerosol optical depth by lidar.ATMOSPHERIC RESEARCH,61(1),1-14.
MLA Gobbi, GP,et al."Observed effects of particles nonsphericity on the retrieval of marine and desert dust aerosol optical depth by lidar".ATMOSPHERIC RESEARCH 61.1(2002):1-14.
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