Preprint Letter Version 1 Preserved in Portico This version is not peer-reviewed

Ground-based Measurements of Atmospheric Trace Gases in Beijing during the Olympic Games

Version 1 : Received: 25 November 2018 / Approved: 4 December 2018 / Online: 5 December 2018 (00:00:00 CET)
Version 2 : Received: 25 November 2018 / Approved: 4 December 2018 / Online: 18 March 2019 (00:00:00 CET)

A peer-reviewed article of this Preprint also exists.

Cheng, J. Ground-based Measurements of Atmospheric Trace Gases in Beijing during the Olympic Games. Sci 2019, 1, 23. Cheng, J. Ground-based Measurements of Atmospheric Trace Gases in Beijing during the Olympic Games. Sci 2019, 1, 23.

Journal reference: Sci 2019, 1, 23
DOI: 10.3390/sci1010023

Abstract

A portable Fourier Transform Spectrometer (B3M-IR) is built and used to measure atmospheric trace gases in the city of Beijing during Olympic Games in 2008. A short description of the instrument is first provided in this paper. A detailed spectral analysis is then presented. The total columns of ozone (O3), carbon monoxide (CO), methane (CH4) and nitrous oxide (N2O) are retrieved from the ground-based solar absorption spectra recorded by the B3M-IR during the Olympic Games. Lacking validation data, only the retrieved total column of O3 is compared with that retrieved by MAX-DOAS, which is deployed at the same station. The mean difference between the two methods of measurement is 6.5%, demonstrating the performance and reliability of B3M-IR.

Subject Areas

B3M-IR; Trace gases; SFIT2; Remote Sensing; Olympic Games

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