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Proceedings Paper

Interaction of atmospheric NO3 radicals with DMS in coastal air
Author(s): Theo Brauers; Hans-Peter Dorn; Rudolf Neuroth; Ulrich Platt
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Paper Abstract

DOAS measurements of NO3, NO2, and O3 were performed on the French Atlantic coast in June 1989. The use of two light paths of 6 km length covering the altitude intervals of 5 m - 10 m and 5 m - 40 m allowed the observation of vertical NO3 concentration gradients. Since the NO3 precursors (NO2 and O3) did not show significant differences on the two light paths altitude dependent sinks must be considered. Simultaneously measured DMS concentrations at 1 m and 40 m altitude showed a vertical gradient with higher values at ground level during all nights. For 3 (of 10) nights measured DMS concentrations and gradients could explain the observed NO3 behavior.

Paper Details

Date Published: 12 February 1993
PDF: 10 pages
Proc. SPIE 1715, Optical Methods in Atmospheric Chemistry, (12 February 1993); doi: 10.1117/12.140188
Show Author Affiliations
Theo Brauers, Forschungszentrum Juelich GmbH (Germany)
Hans-Peter Dorn, Forschungszentrum Juelich GmbH (Germany)
Rudolf Neuroth, Forschungszentrum Juelich GmbH (Germany)
Ulrich Platt, Ruprecht-Karls-Univ. Heidelberg (Germany)

Published in SPIE Proceedings Vol. 1715:
Optical Methods in Atmospheric Chemistry
Harold I. Schiff; Ulrich Platt, Editor(s)

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