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Observations of rapid photochemical destruction of ozone in snowpack interstitial air
Author(s) -
Peterson M. C.,
Honrath R. E.
Publication year - 2001
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 - 10.1029/2000gl012129
Subject(s) - snowpack , ozone , snow , atmospheric sciences , environmental science , troposphere , ozone depletion , photochemistry , albedo (alchemy) , sublimation (psychology) , meteorology , chemistry , geology , physics , art , performance art , art history , psychology , psychotherapist
Measurements in central Greenland demonstrate that ozone is rapidly destroyed through a photochemical process in the surface snowpack. The rate of destruction is too high to result from reaction with NO x or HO x , but could result from catalytic destruction by bromine if its release from snowpack bromide is highly efficient. The pristine nature of the Greenland snowpack implies that ozone destruction may be widespread in illuminated snowpacks and thus influence the budget of boundary‐layer ozone. Similar destruction on tropospheric cloud ice crystals may explain observations of very low ozone levels associated with cirrus clouds.