Authors: Lee, Hanlim¹; Irie, H.²; Kim, Young¹; Noh, Youngmin¹; Lee, Chulkyu³; Kim, Yeosook¹; Chun, Kee⁴

Source: Aerosol Science and Technology, Volume 43, Number 5, May 2009 , pp. 502-509(8)

Publisher: Taylor and Francis Ltd

Abstract:

Multi Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) has been utilized in recent years as a means of deriving vertical profiles of aerosol and trace gases; however, this new technique requires further validation because few studies have investigated its capability. In this study, vertical distributions of aerosol extinction coefficients (AECs) in the lower troposphere were retrieved by applying a recently developed aerosol-retrieval algorithm to O4 slant column densities (SCDs) measured at a UV wavelength (356 nm) using the MAX-DOAS technique. The MAX-DOAS measurements were conducted at the Korea Global Atmosphere Watch Observatory (KGAWO) located off the west coast of Korea during a period of seven cloudless days in May and June 2005. The AECs measured by UV MAX-DOAS varied from 0.05 to 0.73 km-1 in the 0-1 km layer and from 0.01 to 0.20 km-1 in the 1-2 km layer. The AECs for the 1-2 km layer from UV MAX-DOAS are in agreement with lidar data within about 60%. Our results demonstrate the ability of MAX-DOAS as a remote sensing technique for surface aerosol measurements.

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Document Type: Research article

DOI: http://dx.doi.org/10.1080/02786820902769691

Affiliations: 1: Advanced Environmental Monitoring Research Center (ADEMRC), Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), Buk-gu, Gwangju, Republic of Korea 2: Frontier Research Center for Global Change, Japan Agency for Marine-Earth Science and Technology, Yokohama, Kanagawa, Japan 3: Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, Canada 4: Korea Research Institute of Standards and Science, Yusung-ku, Taejon, Korea

Publication date: 2009-05-01

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