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Trajectory model studies of ClO x activation during the 1991/92 northern hemispheric winter
Author(s) -
Lutman E. R.,
Pyle J. A.,
Jones R. L.,
Lary D. J.,
MacKenzie A. R.,
KilbaneDawe I.,
Larsen N.,
Knudsen B.
Publication year - 1994
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/93gl03045
Subject(s) - vortex , trajectory , box model , polar vortex , atmospheric sciences , meteorology , climatology , geology , environmental science , physics , astronomy
Calculations with a chemical box model along air parcel trajectories between November 1991 to January 1992 show a build up of reactive chlorine in late December and early January, culminating in values of ClO x greater than 2.0 ppbv widespread in the vortex on 9 January 1992. These values are quantitatively comparable to the MLS satellite measurements of ClO. We discuss the chemistry occurring within the vortex, around the vortex edge and outside the vortex.