Measurement of tropospheric SO2 by airborne MAXDOAS in Pearl River delta region in China

Jin Xu; Pinhua Xie; Wenqing Liu; Fuqi Si; Ang Li; Jianguo Liu

doi:10.1117/12.870591

9 November 2010 Measurement of tropospheric SO₂ by airborne MAXDOAS in Pearl River delta region in China

Jin Xu, Pinhua Xie, Wenqing Liu, Fuqi Si, Ang Li, Jianguo Liu

Proceedings Volume 7853, Advanced Sensor Systems and Applications IV; 78530U (2010) https://doi.org/10.1117/12.870591
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

The tropospheric SO₂ in Pearl River delta region was firstly measured by airborne Multi Axis Differential Optical Absorption Spectroscopy in China on 10 December, 2008. The SO₂ slant columns were derived with DOAS method in the wavelength from 310~ 325nm and the vertical columns were retrieved by radiative transfer model SCIATRAN. High values were observed near power plant regions with the vertical column density values higher than 8x10¹⁶molec./cm² in the measurement. Combining with the meteorological data from local station the SO₂ flux from the power plant was calculated, the emission flux of SO₂ was about 2.59x10²⁵molec./s. Over the city of Zhuhai, the observed SO₂ vertical column density was 2.46x10¹⁶molec./cm². This is in good agreement with ground-based MAX-DOAS of 2.62x10¹⁶molec./cm² if the same aerosol parameter settings and a well mixed boundary layer of 1000 m is assumed.

Citation Download Citation

Jin Xu, Pinhua Xie, Wenqing Liu, Fuqi Si, Ang Li, and Jianguo Liu "Measurement of tropospheric SO₂ by airborne MAXDOAS in Pearl River delta region in China", Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 78530U (9 November 2010); https://doi.org/10.1117/12.870591

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