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Atmosphere 2015, 6(4), 503-520; doi:10.3390/atmos6040503

An Investigation of Aerosol Scattering and Absorption Properties in Wuhan, Central China

1,2,3,†
,
1,†,* , 1,4
,
1
and
5
1
State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China
2
Collaborative Innovation Center for Geospatial Technology, Wuhan 430079, China
3
Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy, Wuhan 430079, China
4
International School of Software, Wuhan University, Wuhan 430079, China
5
Huazhong University of Science and Technology Wuchang Branch, Wuhan 430064, China
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Robert W. Talbot
Received: 29 January 2015 / Revised: 15 March 2015 / Accepted: 23 March 2015 / Published: 3 April 2015
View Full-Text   |   Download PDF [2687 KB, uploaded 3 April 2015]   |  

Abstract

Aerosol scattering and absorption properties were continuously measured and analyzed at the urban Laboratory for Information Engineering in Surveying, Mapping and Remote Sensing (LIESMARS) site in Wuhan, central China, from 1 December 2009 to 31 March 2014. The mean aerosol scattering coefficient , absorption coefficient , and single scattering albedo (SSA) were 377.54 Mm−1, 119.06 Mm−1, and 0.73, respectively. Both and showed obvious annual variability with large values in winter and small values in summer, principally caused by the annual characteristics of meteorological conditions, especially planetary boundary layer height (PBLH) and local emissions. The SSA showed a slight annual variation. High values of SSA were related to formation of secondary aerosols in winter hazes and aerosol hygroscopic growth in humid summer. The large SSA in June can be attributed to the biomass combustion in Hubei and surrounding provinces. Both and showed double peak phenomena in diurnal variation resulting from the shallow stable PBLH at night and automobile exhaust emission during morning rush hours. The SSA also exhibited a double peak phenomenon related to the proportional variation of black carbon (BC) and light scattering particulates in the day and night. The long-term exploration on quantified aerosol optical properties can help offer scientific basis of introducing timely environmental policies for local government. View Full-Text
Keywords: aerosol; scattering coefficients; absorption coefficients; SSA aerosol; scattering coefficients; absorption coefficients; SSA
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Gong, W.; Zhang, M.; Han, G.; Ma, X.; Zhu, Z. An Investigation of Aerosol Scattering and Absorption Properties in Wuhan, Central China. Atmosphere 2015, 6, 503-520.

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