Improving retrieval precision of NO₂ density in DOAS by accurately ascertaining low-frequency structure

Abstract

The NO₂ density error retrieved by the traditional method of differential optical absorption spectroscopy (DOAS) was analyzed. The technique for reducing the error is proposed and used to obtain the NO₂ density of Chengdu through DOAS.

Keywords

absorption structure / low-frequency structure / absorption cross-section / NO₂ density

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Higher Education Press and Springer-Verlag Berlin Heidelberg