12 February 1993 Interaction of atmospheric NO3 radicals with DMS in coastal air
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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.
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Theo Brauers, Theo Brauers, Hans-Peter Dorn, Hans-Peter Dorn, Rudolf Neuroth, Rudolf Neuroth, Ulrich Platt, Ulrich Platt, } "Interaction of atmospheric NO3 radicals with DMS in coastal air", Proc. SPIE 1715, Optical Methods in Atmospheric Chemistry, (12 February 1993); doi: 10.1117/12.140188; https://doi.org/10.1117/12.140188
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