Arid
DOI10.1029/2009JD011870
Temporal trend in anthropogenic sulfur aerosol transport from central and eastern Europe to Israel
Karnieli, Arnon1; Derimian, Yevgeny1; Indoitu, Rodica1; Panov, Natalya1; Levy, Robert C.2,3; Remer, Lorraine A.2; Maenhaut, Willy4; Holben, Brent N.2
通讯作者Karnieli, Arnon
来源期刊JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
EISSN2169-8996
出版年2009
卷号114
英文摘要

Decrease of sulfur emissions in central and eastern Europe over the past 3 decades is well documented and linked to changes in economic activity, use of different fuels, addition of pollution controls, etc. These changes result in a decreasing trend of sulfate aerosol and aerosol forcing over the source region, but also at a receptor site located in southern Israel, thousands of kilometers downwind of the original source. A combination of several independent observations, namely, satellite and ground-based remote sensing, in situ aerosol sampling, and backward trajectory analysis, was implemented to show significant downward trends in fine particle aerosol optical thickness (AOT), in general, and sulfur aerosol, in particular, between 1995 and 2007. For the study years, MODIS-Terra observations over central and eastern Europe show 38% reduction of fine AOT. At the reception site in southern Israel, 43% reduction of fine AOT was observed by a ground-based sun/sky photometer and 25% reduction of sampled fine aerosols was obtained. During the corresponding observation periods, the coarse mode AOT has remained constant. The majority of the backward trajectories, where meaningful sulfur events were observed at the receptor site, are originated from eastern and central Europe. The aerosol radiative effect at top of the atmosphere has become less negative during the past decade, decreasing by 30% in Europe and 67% in Israel. The decrease in negative cloud-free aerosol forcing is consistent with observations of "global brightening’’ reported since 1990.


类型Article
语种英语
国家Israel ; USA ; Belgium
收录类别SCI-E
WOS记录号WOS:000268820900003
WOS关键词SKY RADIANCE MEASUREMENTS ; OPTICAL-PROPERTIES ; ATMOSPHERIC SULFUR ; METEOROLOGICAL CONDITIONS ; SYNOPTIC ANALYSIS ; SOLAR-RADIATION ; EARTHS SURFACE ; NEGEV DESERT ; AIR MASSES ; AERONET
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
来源机构Ben-Gurion University of the Negev
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/161549
作者单位1.Ben Gurion Univ Negev, Remote Sensing Lab, Jacob Blaustein Inst Desert Res, Sede Boqer, Israel;
2.NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA;
3.SSAI, Lanham, MD USA;
4.Univ Ghent, Dept Analyt Chem, Inst Nucl Sci, B-9000 Ghent, Belgium
推荐引用方式
GB/T 7714
Karnieli, Arnon,Derimian, Yevgeny,Indoitu, Rodica,et al. Temporal trend in anthropogenic sulfur aerosol transport from central and eastern Europe to Israel[J]. Ben-Gurion University of the Negev,2009,114.
APA Karnieli, Arnon.,Derimian, Yevgeny.,Indoitu, Rodica.,Panov, Natalya.,Levy, Robert C..,...&Holben, Brent N..(2009).Temporal trend in anthropogenic sulfur aerosol transport from central and eastern Europe to Israel.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,114.
MLA Karnieli, Arnon,et al."Temporal trend in anthropogenic sulfur aerosol transport from central and eastern Europe to Israel".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 114(2009).
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