Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1029/1999JD900781 |
Interrelationships between aerosol characteristics and light scattering during late winter in an Eastern Mediterranean arid environment | |
Ichoku, C; Andreae, MO; Andreae, TW; Meixner, FX; Schebeske, G; Formenti, P; Maenhaut, W; Cafmeyer, J; Ptasinski, J; Karnieli, A; Orlovsky, L | |
通讯作者 | Ichoku, C |
来源期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
出版年 | 1999 |
卷号 | 104期号:D20页码:24371-24393 |
英文摘要 | An intensive field campaign involving measurement of various aerosol physical, chemical, and radiative properties was conducted at Sde Boker (also written as Sede Boqer) in the Negev Desert of Israel, from is February to 15 March 1997, Nephelometer measurements gave average background scattering coefficient values of about 25 Mm(-1) at 550 nm wavelength, but strong dust events caused the value of this parameter to rise up to about 800 Mm(-1). Backscattering fractions did not depend on aerosol loading and generally fell in the range of 0.1 to 0,25, comparable to values reported for marine and Arctic environments. Chemical analysis of the aerosol revealed that in the coarse size range (2-10 mu m equivalent aerodynamic diameter (EAD)), calcium (Ca) was by far the most abundant element followed by silicon (Si), both of which are indicators for mineral dust. In the fine size fraction (<2 mu m EAD), sulfur (S) generally was the dominant element, except during high dust episodes when Ca and Si were again the most abundant. Furthermore, fine black carbon (BC) correlates with S, suggesting that they may have originated from the same sources or source regions, An indication of the shortterm effect of aerosol loading on radiative forcing was provided by measurements of global and diffuse solar radiation, which showed that during high-turbidity periods (strong dust events), almost all of the solar radiation reaching the area is scattered or absorbed. |
类型 | Article |
语种 | 英语 |
国家 | Germany ; Belgium ; Israel |
收录类别 | SCI-E |
WOS记录号 | WOS:000083332400011 |
WOS关键词 | METEOSAT ISCCP-B2 DATA ; LONG-RANGE TRANSPORT ; SAHARAN DUST LOAD ; OPTICAL-PROPERTIES ; GREENHOUSE GASES ; PARTICLE-SIZE ; SOOT CARBON ; ABSORPTION ; APPORTIONMENT ; NEPHELOMETER |
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/2XILL650/137691 |
作者单位 | (1)Max Planck Inst Chem, Biogeochem Dept, D-55020 Mainz, Germany;(2)Univ Ghent, Inst Nucl Sci, B-9000 Ghent, Belgium;(3)Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, Microalgal Biotechnol Lab, IL-84990 Sede Boqer, Israel |
推荐引用方式 GB/T 7714 | Ichoku, C,Andreae, MO,Andreae, TW,et al. Interrelationships between aerosol characteristics and light scattering during late winter in an Eastern Mediterranean arid environment[J]. Ben-Gurion University of the Negev,1999,104(D20):24371-24393. |
APA | Ichoku, C.,Andreae, MO.,Andreae, TW.,Meixner, FX.,Schebeske, G.,...&Orlovsky, L.(1999).Interrelationships between aerosol characteristics and light scattering during late winter in an Eastern Mediterranean arid environment.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,104(D20),24371-24393. |
MLA | Ichoku, C,et al."Interrelationships between aerosol characteristics and light scattering during late winter in an Eastern Mediterranean arid environment".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 104.D20(1999):24371-24393. |
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