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First attempt to monitor atmospheric glyoxal using differential absorption lidar

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Author

  • Liang Mei
  • Patrik Lundin
  • Gabriel Somesfalean
  • Jiandong Hu
  • Guangyu Zhao
  • Sune Svanberg
  • Joakim Bood
  • Mihalis Vrekoussis
  • Alexandros Papayannis

Summary, in English

Glyoxal (CHOCHO), as an indicator of photochemical “hot spots”, was for the first time the subject of a differential absorption lidar (DIAL) campaign. The strongest absorption line of glyoxal in the blue wavelength region – 455.1 nm – was chosen as the experimental absorption wavelength. In order to handle the effects of absorption cross-section variation of the interfering gas – nitrogen dioxide (NO<sub>2</sub>) – three-wavelength DIAL measurements simultaneously detecting glyoxal and NO<sub>2</sub>, were performed. The differential absorption curves, recorded in July 2012, indicate an extremely low glyoxal concentration in Lund, Sweden, although it is expected to be peaking at this time of the year.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

Publishing year

2012

Language

English

Publication/Series

Proceedings of the SPIE

Volume

853412

Document type

Conference paper

Topic

  • Atom and Molecular Physics and Optics

Conference name

Remote Sensing of Clouds and the Atmosphere XVII; and Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing VIII

Conference date

2012-09-24

Conference place

Edinburgh, United Kingdom

Status

Published