Physics – Geophysics
Scientific paper
Jun 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002georl..29l..55c&link_type=abstract
Geophysical Research Letters, Volume 29, Issue 12, pp. 55-1, CiteID 1613, DOI 10.1029/2002GL014660
Physics
Geophysics
3
Atmospheric Composition And Structure: Middle Atmosphere-Constituent Transport And Chemistry (3334), Atmospheric Composition And Structure: Troposphere-Composition And Chemistry, Mathematical Geophysics: Modeling, Atmospheric Composition And Structure: Troposphere-Constituent Transport And Chemistry
Scientific paper
The coarse spatial resolution of large-scale models can be a significant source of error in calculating grid cell averaged rates of physical processes. We investigate here the influence of resolution in the case of chemical reactions. We use high resolution MOZAIC ozone and water vapour data to characterise the effects of unresolved structures on model-calculated production of the hydroxyl radical (OH) in the upper troposphere/lower stratosphere region. The statistical analysis of MOZAIC data indicates that, on average, large-scale models may overestimate OH production by 5% to 20% for resolutions ranging from ~200 to ~800 km respectively. This systematic bias is found to be most significant in the tropopause region.
Bekki Slimane
Crowther Ashley R.
Law K. S.
Pyle John A.
Smit G. J. H.
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