Aerosol lidar ratio determination and its effect on troposphere in Thailand
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Publication Details
Author list: Ruangrungrote S., Limsuwan P.
Publisher: Elsevier
Publication year: 2012
Volume number: 32
Start page: 793
End page: 799
Number of pages: 7
ISSN: 1877-7058
Languages: English-Great Britain (EN-GB)
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Abstract
The empirical factor known as extinction-to-backscatter or lidar ratio (S) of Si Samrong district, Sukhothai province in Thailand were retrieved from radiosonde data for 5 consecutive days in April 2003 using Ackermann's numerical method. Daily mean aerosol lidar ratios (Sa) were obtained in the range from 50.268 ฑ 2.728 to 52.778 ฑ 2.383 which related to fine soil dust aerosols in troposphere. Since accurate lidar ratio is compulsory for estimating the aerosol optical properties and understanding transmission and reflection at the interested wavelength. Hence, this work was a preliminary attempt to retrieve the exact aerosol lidar ratio for Thailand in order to profoundly examine the roles of continental aerosol in regional climate corresponding to the available data at 532 nm wavelength from Mie scattering lidar measurement in the near future. ฉ 2010 Published by Elsevier Ltd.
Keywords
Extinction-to-backscatter, Lidar ratio, Mean aerosol lidar ratio, Mie scattering lidar, Radiosonde
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