Retrieval of atmospheric visibility from multi-axis differential optical absorption spectroscopy

Hai Jin Zhou; Wen Qing Liu; Fu Qi Si

doi:10.1117/12.999616

11 December 2012 Retrieval of atmospheric visibility from multi-axis differential optical absorption spectroscopy

Hai Jin Zhou, Wen Qing Liu, Fu Qi Si

Proceedings Volume 8553, Optics in Health Care and Biomedical Optics V; 85532S (2012) https://doi.org/10.1117/12.999616
Event: Photonics Asia, 2012, Beijing, China

Abstract

The multi-axis differential optical absorption spectroscopy (MAX-DOAS) technique is being widely used in the monitoring of trace gases column density. In this paper, a retrieval method of visibility from O₄ slant column density measured with MAX-DOAS is present. O₄ slant column density is sensitive to the change of aerosol properties, and aerosol properties determine the atmospheric visibility. The relationship of atmospheric visibility and O₄ slant column density is analyzed, and a retrieval algorithm to convert the O₄ differential slant column density into visibility is described. MAX-DOAS observation is carried out, and atmospheric visibility is retrieved successfully. The visibility measured with MAX-DOAS shows good agreement with the result obtained with visibility meter, proving the feasibility of the retrieval method. This research presents a simple and effective monitoring method of visibility with MAX-DOAS, expands the application of MAX-DOAS technique.

Citation Download Citation

Hai Jin Zhou, Wen Qing Liu, and Fu Qi Si "Retrieval of atmospheric visibility from multi-axis differential optical absorption spectroscopy", Proc. SPIE 8553, Optics in Health Care and Biomedical Optics V, 85532S (11 December 2012); https://doi.org/10.1117/12.999616

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