Comparison of OMI and Ground-Based MAX-DOAS Measurements of Tropospheric Nitrogen Dioxide in Beijing During the Olympic Games

Abstract

Abstract:

The tropospheric nitrogen dioxide over the Olympic venues in Beijing was measured by ground-based Multi Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) during the Olympic Games in 2008, and was compared with the result of OMI. It showed that the result of MAX-DOAS was higher than that of OMI, the maximum is 2.4 times the result of OMI; both instruments had good accordance(r=0.64) when it’s clear, and when it was rainy or cloudy there was more difference between the results of both instruments for the existing of cloud, with a correlation coefficient of 0.19, but the result of MAX-DOAS had better accordance with LP-DOAS, with a correlation coefficient of 0.92.

Key words: Beijing Olympic Games, MAX-DOAS, vertical column density

CLC Number:

O433.4

XU Jin, XIE Pin-Hua, SI Fu-Qi, LI Ang, DOU Ke, LIU Yu, QIN Min, WANG Man-Hua, ZHANG Yong, SHI Peng, LIU Wen-Qing. Comparison of OMI and Ground-Based MAX-DOAS Measurements of Tropospheric Nitrogen Dioxide in Beijing During the Olympic Games[J]. Journal of Atmospheric and Environmental Optics, 2009, 4(5): 347-355.

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Comparison of OMI and Ground-Based MAX-DOAS Measurements of Tropospheric Nitrogen Dioxide in Beijing During the Olympic Games

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