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Loss of ozone in the Arctic vortex for the winter of 1989
Author(s) -
Salawitch Ross J.,
McElroy Michael B.,
Yatteau John H.,
Wofsy Steven C.,
Schoeberl Mark R.,
Lait Leslie R.,
Newman Paul A.,
Chan K. Roland,
Loewenstein Max,
Podolske James R.,
Strahan Susan E.,
Proffitt Michael H.
Publication year - 1990
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/gl017i004p00561
Subject(s) - polar vortex , ozone , vortex , arctic , atmospheric sciences , stratosphere , ozone depletion , atmosphere (unit) , chlorine , potential vorticity , environmental science , climatology , the arctic , ozone layer , potential temperature , polar , vorticity , meteorology , chemistry , physics , geology , oceanography , organic chemistry , astronomy
Measurements of ClO (Brune et al., 1990) acquired during the Airborne Arctic Stratospheric Expedition are used to infer concentrations of reactive chlorine (ClO+2 × Cl 2 O 2 ). Observed fields of potential temperature and potential vorticity are used to extrapolate in situ data to larger regions of the vortex. Calculated values of the loss rate of O 3 , based on estimates of reactive chlorine and measurements of BrO (Toohey et al., 1990), suggest that the loss of O 3 was about 12% for levels of the atmosphere with potential temperatures between 440 and 470 K over the 39 day duration of the ER‐2 flights into the polar vortex. Calculated loss rates agree with observed rates of removal of O 3 , although significant uncertainties exist for each.