Arid
DOI10.1016/j.rse.2014.12.010
Quantification of trans-Atlantic dust transport from seven-year (2007-2013) record of CALIPSO lidar measurements
Yu, Hongbin1,2; Chin, Mian2; Bian, Huisheng2,3; Yuan, Tianle2,3; Prospero, Joseph M.4; Omar, Ali H.5; Remer, Lorraine A.3; Winker, David M.5; Yang, Yuekui2,6; Zhang, Yan2,6; Zhang, Zhibo7
通讯作者Yu, Hongbin
来源期刊REMOTE SENSING OF ENVIRONMENT
ISSN0034-4257
EISSN1879-0704
出版年2015
卷号159页码:232-249
英文摘要

The trans-Atlantic dust transport has important implications for human and ecosystem health, the terrestrial and oceanic biogeochemical cycle, weather systems, and climate. This study provides an observation-based multiyear estimate of trans-Atlantic dust transport using a 7-year (2007-2013) record of the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) measurements of the three dimensional distribution of aerosol backscatter, extinction and depolarization ratio in both cloud-free and above-cloud conditions. We estimate that on a basis of the 7-year average and integration over 10 degrees S-30 degrees N, 182 Tg a(-1) dust leaves the coast of North Africa at 15 degrees W, of which 132 Tg a(-1) and 43 Tg a(-1) reaches 35 degrees W and 75 degrees W, respectively. These flux estimates have an overall known uncertainty of (45-70)%. Because of lack of reliable observations, uncertainties associated with the diurnal variation of dust and the missing below-cloud dust cannot be quantified. Significant seasonal variations are observed in both the magnitude of total dust mass flux and its meridional and vertical distributions. The interannual variability of annual dust mass flux is highly anti-correlated with the prior-year Sahel Precipitation Index. Using only cloud-free aerosol observations to calculate dust mass flux could introduce a high bias when compared with all-sky conditions that include both cloud-free and above-cloud aerosol observations. The bias is about 20% at 35 degrees W and 75 degrees W in boreal winter and spring based on the 7-year average, as long as dust within and below low-level clouds is negligible. (C) 2014 Elsevier Inc All rights reserved.


英文关键词Aerosol Dust Transport CALIPSO Satellite
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000352749000018
WOS关键词NORTH-AFRICAN DUST ; SPECTRAL-RESOLUTION LIDAR ; SAHARAN DUST ; OPTICAL DEPTH ; MINERAL DUST ; TROPICAL ATLANTIC ; AMAZON BASIN ; DESERT DUST ; SAMUM 2006 ; AEROSOL
WOS类目Environmental Sciences ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向Environmental Sciences & Ecology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/190201
作者单位1.Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20742 USA;
2.NASA, Goddard Space Flight Ctr, Div Earth Sci, Greenbelt, MD 20771 USA;
3.Univ Maryland, Joint Ctr Earth Sci & Technol, Baltimore, MD 21201 USA;
4.Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Cooperat Inst Marine & Atmospher Studies, Miami, FL 33149 USA;
5.NASA, Langley Res Ctr, Hampton, VA 23665 USA;
6.Univ Space Res Assoc, Columbia, MD USA;
7.Univ Maryland, Dept Phys, Baltimore, MD 21201 USA
推荐引用方式
GB/T 7714
Yu, Hongbin,Chin, Mian,Bian, Huisheng,et al. Quantification of trans-Atlantic dust transport from seven-year (2007-2013) record of CALIPSO lidar measurements[J],2015,159:232-249.
APA Yu, Hongbin.,Chin, Mian.,Bian, Huisheng.,Yuan, Tianle.,Prospero, Joseph M..,...&Zhang, Zhibo.(2015).Quantification of trans-Atlantic dust transport from seven-year (2007-2013) record of CALIPSO lidar measurements.REMOTE SENSING OF ENVIRONMENT,159,232-249.
MLA Yu, Hongbin,et al."Quantification of trans-Atlantic dust transport from seven-year (2007-2013) record of CALIPSO lidar measurements".REMOTE SENSING OF ENVIRONMENT 159(2015):232-249.
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