Arid
DOI10.5194/acp-11-3673-2011
Airborne observation of aerosol optical depth during ARCTAS: vertical profiles, inter-comparison and fine-mode fraction
Shinozuka, Y.1,2; Redemann, J.2; Livingston, J. M.3; Russell, P. B.; Clarke, A. D.4; Howell, S. G.4; Freitag, S.4; O’Neill, N. T.5; Reid, E. A.6; Johnson, R.; Ramachandran, S.1,7; McNaughton, C. S.4; Kapustin, V. N.4; Brekhovskikh, V.4; Holben, B. N.8; McArthur, L. J. B.9
通讯作者Shinozuka, Y.
来源期刊ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN1680-7316
EISSN1680-7324
出版年2011
卷号11期号:8页码:3673-3688
英文摘要

We describe aerosol optical depth (AOD) measured during the Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) experiment, focusing on vertical profiles, inter-comparison with correlative observations and fine-mode fraction. Arctic haze observed in < 2 km and 2-4 km over Alaska in April 2008 originated mainly from anthropogenic emission and biomass burning, respectively, according to aerosol mass spectrometry and black carbon incandescence measurements. The Angstrom exponent for these air masses is 1.4 +/- 0.3 and 1.7 +/- 0.1, respectively, when derived at 499 nm from a second-order polynomial fit to the AOD spectra measured with the 14-channel Ames Airborne Tracking Sunphotometer (AATS-14) over 354-2139 nm. We examine 55 vertical profiles selected from all phases of the experiment. For two thirds of them, the AOD spectra are within 3% + 0.02 of the vertical integral of local visible-light scattering and absorption. The horizontal structure of smoke plumes from local biomass burning observed in central Canada in June and July 2008 explains most outliers. The differences in mid-visible Angstrom exponent are < 0.10 for 63% of the profiles with 499-nm AOD > 0.1. The retrieved fine-mode fraction of AOD is mostly between 0.7 and 1.0, and its root mean square difference (in both directions) from column-integral submicron fraction (measured with nephelometers, absorption photometers and an impactor) is 0.12. These AOD measurements from the NASA P-3 aircraft, after compensation for below-aircraft light attenuation by vertical extrapolation, mostly fall within +/- 0.02 of AERONET ground-based measurements between 340-1640 nm for five overpass events.


类型Article
语种英语
国家USA ; Canada ; India
收录类别SCI-E
WOS记录号WOS:000290014300007
WOS关键词IMAGING SPECTRORADIOMETER MODIS ; SKY RADIANCE MEASUREMENTS ; COLUMNAR WATER-VAPOR ; SUN PHOTOMETER ; ACE-ASIA ; MASS-SPECTROMETER ; DESERT DUST ; SOLVE-II ; IN-SITU ; AERONET
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/167216
作者单位1.NASA, Ames Res Ctr, NASA Postdoctoral Program, Moffett Field, CA 94035 USA;
2.Bay Area Environm Res Inst, Sonoma, CA USA;
3.SRI Int, Menlo Pk, CA 94025 USA;
4.Univ Hawaii, Sch Ocean & Earth Sci & Technol, Honolulu, HI 96822 USA;
5.Univ Sherbrooke, CARTEL, Sherbrooke, PQ J1K 2R1, Canada;
6.Marine Meteorol Div, Naval Res Lab, Monterey, CA USA;
7.Phys Res Lab, Ahmadabad 380009, Gujarat, India;
8.NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA;
9.Environm Canada, Toronto, ON, Canada
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Shinozuka, Y.,Redemann, J.,Livingston, J. M.,et al. Airborne observation of aerosol optical depth during ARCTAS: vertical profiles, inter-comparison and fine-mode fraction[J],2011,11(8):3673-3688.
APA Shinozuka, Y..,Redemann, J..,Livingston, J. M..,Russell, P. B..,Clarke, A. D..,...&McArthur, L. J. B..(2011).Airborne observation of aerosol optical depth during ARCTAS: vertical profiles, inter-comparison and fine-mode fraction.ATMOSPHERIC CHEMISTRY AND PHYSICS,11(8),3673-3688.
MLA Shinozuka, Y.,et al."Airborne observation of aerosol optical depth during ARCTAS: vertical profiles, inter-comparison and fine-mode fraction".ATMOSPHERIC CHEMISTRY AND PHYSICS 11.8(2011):3673-3688.
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