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Tunable diode laser measurements of trace gases during the 1988Polarsterncruise and intercomparisons with other methods

✍ Scribed by G. W. Harris; D. Klemp; T. Zenker; J. P. Burrows; B. Mathieu

Book ID: 104626259
Publisher: Springer Netherlands
Year: 1992
Tongue: English
Weight: 652 KB
Volume: 15
Category: Article
ISSN: 0167-7764
DOI: 10.1007/bf00115401

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✦ Synopsis

Measurements of NO2, HCHO, and U202 were made by the highly specific method of mid infra-red absorption spectroscopy using tunable diode lasers (TDLAS) during the 1988 Polarstern expedition. The TDLAS data are compared to those obtained during the cruise using less direct methods. Southern Hemisphere NO z levels suggest nett photochemical destruction of O3 in the boundary layer. Northern Hemisphere HCHO averaged 0.47 + 0.2 ppbv; the HCHO measurements are used in a simple calculation to estimate OH noontime maxima of 3-6 x IW' cm 3.

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