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Proceedings Paper

Laser fast-scanning multipath absorption: an ultrasensitive technique for monitoring tropospheric trace gases
Author(s): W. Armerding; A. Herbert; M. Spiekermann; J. Walter; Franz Josef Comes
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Paper Abstract

An absorption method for the monitoring of tropospheric trace gases is presented which is based on the fast scanning of a laser system. The 1 km absorption path is folded by a 6m White cell with an open path set up. In situ measurements of tropospheric OH have been carried out under different environmental conditions. Due to the small dimensions of the volume under study a controlled variation of the photon flux density can be realized. This 'open air laboratory' allows kinetic measurements of tropospheric photochemistry under field conditions.

Paper Details

Date Published: 12 February 1993
PDF: 8 pages
Proc. SPIE 1715, Optical Methods in Atmospheric Chemistry, (12 February 1993); doi: 10.1117/12.140214
Show Author Affiliations
W. Armerding, Johann-Wolfgang-Goethe-Univ. (Germany)
A. Herbert, Johann-Wolfgang-Goethe-Univ. (Germany)
M. Spiekermann, Johann-Wolfgang-Goethe-Univ. (Germany)
J. Walter, Johann-Wolfgang-Goethe-Univ. (Germany)
Franz Josef Comes, Johann-Wolfgang-Goethe-Univ. (Germany)


Published in SPIE Proceedings Vol. 1715:
Optical Methods in Atmospheric Chemistry

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