Arid
DOI10.1029/2009GL041002
Relative humidity dependence of light absorption by mineral dust after long-range atmospheric transport from the Sahara
Lack, Daniel A.1,4; Quinn, Patricia K.2; Massoli, Paola1,4; Bates, Timothy S.2; Coffman, Derek2; Covert, David S.3; Sierau, Berko3; Tucker, Sara1; Baynard, Tahllee1,4; Lovejoy, Edward1; Murphy, Daniel M.1; Ravishankara, A. R.1
通讯作者Lack, Daniel A.
来源期刊GEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
EISSN1944-8007
出版年2009
卷号36
英文摘要

The relative humidity (RH) dependence of light absorption for a Saharan dust-dominated air mass transported to the Gulf of Mexico was measured during the 2006 TexAQS/GoMACCS study using a photo-acoustic absorption spectrometer (PAS). Aerosol absorption was measured at low (25%) and high (73%) RH indicating a 1.5(+/-0.3) absorption enhancement [f(RHAbs)] under high RH conditions. f(RHAbs) estimates, based on air-mass physical and optical properties and Mie theory modeling, were between 1.2-1.4. Reasons for differences between the measured and modeled f(RHAbs) are discussed. The mass absorption coefficient of the long-range transported dust was calculated to be 0.04(+/-0.02) m(2)g(-1). Citation: Lack, D. A., et al. (2009), Relative humidity dependence of light absorption by mineral dust after long-range atmospheric transport from the Sahara, Geophys. Res. Lett., 36, L24805, doi:10.1029/2009GL041002.


类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000272942100002
WOS关键词REFRACTIVE-INDEXES ; OPTICAL-PROPERTIES ; AEROSOL-PARTICLES ; DESERT DUST ; SEA-SALT ; IN-SITU ; SIZE ; HYGROSCOPICITY ; CALIBRATION ; SCATTERING
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/160843
作者单位1.NOAA, Earth Syst Res Lab, Boulder, CO 80304 USA;
2.NOAA, Pacific Marine Environm Lab, Seattle, WA 98115 USA;
3.Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA;
4.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA
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GB/T 7714
Lack, Daniel A.,Quinn, Patricia K.,Massoli, Paola,et al. Relative humidity dependence of light absorption by mineral dust after long-range atmospheric transport from the Sahara[J],2009,36.
APA Lack, Daniel A..,Quinn, Patricia K..,Massoli, Paola.,Bates, Timothy S..,Coffman, Derek.,...&Ravishankara, A. R..(2009).Relative humidity dependence of light absorption by mineral dust after long-range atmospheric transport from the Sahara.GEOPHYSICAL RESEARCH LETTERS,36.
MLA Lack, Daniel A.,et al."Relative humidity dependence of light absorption by mineral dust after long-range atmospheric transport from the Sahara".GEOPHYSICAL RESEARCH LETTERS 36(2009).
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