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Proceedings Paper

Column amounts of trace gases measured by ground-based FTIR spectroscopy during the EASOE campaign
Author(s): Thomas Blumenstock; Herbert Fischer; L. Gerhardt; P. Thomas; Olaf Trieschmann; A. Wegner
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Paper Abstract

To investigate the ozone changes and their causes in the Arctic our FTIR spectrometers were operated in winter 1991/92 during the European Arctic stratospheric ozone experiment (EASOE): one at Esrange, Sweden, and the other one at Sondre Stromfjord, Greenland. The evaluation of the recorded spectra yields zenith column amounts (ZCA) of several trace gases like H2O, HDO, CH4, N2O, CFC-11, -12, -22, O3, HNO3, ClONO2, HCl and HF. This paper focuses on HCl, HF and ClONO2. The ratio HCl to HF is rather low inside the vortex indicating a perturbed chemistry. ClONO2 is increasing towards the end of the winter and is very high in the late polar vortex.

Paper Details

Date Published: 31 January 1994
PDF: 2 pages
Proc. SPIE 2089, 9th International Conference on Fourier Transform Spectroscopy, (31 January 1994); doi: 10.1117/12.166706
Show Author Affiliations
Thomas Blumenstock, Univ. Karlsruhe (Germany)
Herbert Fischer, Univ. Karlsruhe (Germany)
L. Gerhardt, Univ. Karlsruhe (Germany)
P. Thomas, Univ. Karlsruhe (Germany)
Olaf Trieschmann, Univ. Karlsruhe (Germany)
A. Wegner, Univ. Karlsruhe (Germany)

Published in SPIE Proceedings Vol. 2089:
9th International Conference on Fourier Transform Spectroscopy
John E. Bertie; Hal Wieser, Editor(s)

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