Space scannable LP-DOAS system

Zhenbi Li; Wen Qing Liu; Ya-Ping Wang; Qi Feng; Xinming Zheng

doi:10.1117/12.467416

16 June 2003 Space scannable LP-DOAS system

Zhenbi Li, Wen Qing Liu, Ya-Ping Wang, Qi Feng, Xinming Zheng

Proceedings Volume 4897, Multispectral and Hyperspectral Remote Sensing Instruments and Applications; (2003) https://doi.org/10.1117/12.467416
Event: Third International Asia-Pacific Environmental Remote Sensing Remote Sensing of the Atmosphere, Ocean, Environment, and Space, 2002, Hangzhou, China

Abstract

The DOAS technique is currently the developing trend and the main technique of online monitoring of tropospheric air quality measurements. In order to enlarge the scope of monitoring with only one set of instrument, we recently developed an multi-path LP-DOAS system in which we put several sets of retroreflectors at their own appointed remote places, each makes a measuring lightpath when the telescope aligns with it. In this way we can determine high spatial resolution and two or three-dimensional trace gas distributions of a larger region with the telescope as its center. We developed a stepping-motor-based mechanics-electrical device to drive the telescope. Under the control of a PC the telescope can automatically scan these retroreflectors one by one in continuous measure cycles.

Citation Download Citation

Zhenbi Li, Wen Qing Liu, Ya-Ping Wang, Qi Feng, and Xinming Zheng "Space scannable LP-DOAS system", Proc. SPIE 4897, Multispectral and Hyperspectral Remote Sensing Instruments and Applications, (16 June 2003); https://doi.org/10.1117/12.467416

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KEYWORDS

Telescopes

Space telescopes

Retroreflectors

Absorption

Control systems

Gases

Signal processing

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