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Höpfner et al. 1996

Höpfner, M., Blom, C.E., Blumenstock, T., Fischer, H. and Gulde, T. (1996). Evidence for the removal of gaseous HNO₃ inside the arctic polar vortex in January 1992. Geophysical Research Letters 23: doi: 10.1029/95GL03779. issn: 0094-8276.

Unexpectedly low column amounts of HNO3 (1.3¿1016 cm-2) inside the Arctic polar vortex were obtained on January 9, 1992 by airborne FTIR emission measurements. After correction for dynamic variations it is concluded that about 40% of the column HNO3 had been removed from the gas phase. The observed depletion is consistent with a nearly equilibrium saturation of HNO3 over nitric acid trihydrate. It cannot be explained by the uptake of HNO3 in ternary H2SO4/H2O/HNO3 mixtures. ¿ American Geophysical Union 1996

BACKGROUND DATA FILES

	Abstract

Keywords
Atmospheric Composition and Structure, Middle atmosphere—composition and chemistry, Meteorology and Atmospheric Dynamics, Middle atmosphere dynamics (0341, 0342)

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

Publisher
American Geophysical Union
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