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Notholt et al. 1994

Notholt, J., Clarmann, T.v., Adrian, G.P. and Schrems, O. (1994). Ground-based FTIR measurements of CLONO₂ Vertical column amounts in the Arctic. Geophysical Research Letters 21: doi: 10.1029/93GL01785. issn: 0094-8276.

During the EASOE campaign measurements have been performed in March at Ny-¿lesund (79¿N, 11¿E) by high resolution FTIR spectroscopy to derive the vertical column amounts of ClONO2. For the first part of this period the polar vortex was found to be situated above Ny-¿lesund.

The measurements give ClONO2 zenith column amounts of about 3.9¿1015 mol cm-2 outside the polar vortex, much higher than midlatitude values for an undisturbed atmosphere. Inside the vortex strong variabilities with burdens between 2.8 and 6.8¿1015 mol cm-2 were observed. These high values might be explained by the reaction of ClO with NO2 and the relatively warm stratosphere ensuring that the ClONO2 so formed remains in the gas phase. ¿ American Geophysical Union 1994

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	Abstract

Keywords
Atmospheric Composition and Structure, Middle atmosphere—composition and chemistry, Atmospheric Composition and Structure, Troposphere—composition and chemistry, Atmospheric Composition and Structure, Evolution of the atmosphere, Meteorology and Atmospheric Dynamics, Polar meteorology

Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/

Publisher
American Geophysical Union
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