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Heterogeneous conversion of COF 2 to HF in polar stratospheric clouds
Author(s) -
Wofsy Steven C.,
Yatteau John H.,
Salawitch Ross J.,
McElroy Michael B.,
Toon Geoffrey C.,
Mankin William G.,
Coffey Michael T.
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/gl017i004p00461
Subject(s) - polar , ozone depletion , stratosphere , arctic , atmospheric chemistry , atmospheric sciences , ozone layer , the arctic , chlorine , radical , photodissociation , atmosphere of earth , ozone , chemistry , astrobiology , environmental science , meteorology , photochemistry , atmosphere (unit) , geology , organic chemistry , physics , oceanography , astronomy
It is argued that the reaction COF 2 +H 2 O → 2HF+CO 2 should proceed on surfaces of polar stratospheric clouds (PSCs), based on laboratory evidence for this reaction in condensed phase and on analysis of column observations of HF during the Airborne Arctic Stratospheric Expedition (AASE). If the hypothesis is confirmed, observations of COF 2 and HF could provide unambiguous indication of heterogeneous processing of polar air, and could help elucidate the influence of heterogeneous chemistry on concentrations of HCl, ClNO 3 , and chlorine oxide radicals.