Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/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
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ISSN | 0169-8095 |
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 |
推荐引用方式 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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