The role of ozone atmosphere-snow gas exchange on polar, boundary-layer tropospheric ozone – a review and sensitivity analysis

Recent research on snowpack processes and atmosphere-snow gas exchange has demonstrated that chemical and physical interactions between the snowpack and the overlaying atmosphere have a substantial impact on the composition of the lower troposphere. These observations also imply that ozone depositio...

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Bibliographic Details
Published in:Atmospheric chemistry and physics 2007-01, Vol.7 (1), p.15-30
Main Authors: Helmig, D., Ganzeveld, L., Butler, T., Oltmans, S. J.
Format: Article
Language:English
Subjects:
Ocean, Atmosphere
Sciences of the Universe
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Summary:Recent research on snowpack processes and atmosphere-snow gas exchange has demonstrated that chemical and physical interactions between the snowpack and the overlaying atmosphere have a substantial impact on the composition of the lower troposphere. These observations also imply that ozone deposition to the snowpack possibly depends on parameters including the quantity and composition of deposited trace gases, solar irradiance, snow temperature and the substrate below the snowpack. Current literature spans a remarkably wide range of ozone deposition velocities (vdO3); several studies even reported positive ozone fluxes out of the snow. Overall, published values range from ~–3
ISSN:1680-7324
1680-7316
1680-7324
DOI:10.5194/acp-7-15-2007