Three-dimensional dynamical-chemical model of atmospheric ozone

Journal Article · Wed Jan 01 04:00:00 EST 1975 · J. Atmos. Sci.; (United States)

DOI:https://doi.org/10.1175/1520-0469(1975)032<0170:ATDDCM>2.0.CO;2· OSTI ID:7366949

Cunnold, D; Alyea, F; Phillips, N; Prinn, R

A three-year integration of a global three-dimensional model including dynamics and simple photochemistry is used to predict ozone. Distributions of NO/sub 2/ and odd hydrogen deduced by McConnell and McElroy are used to incorporate in a simple way the chemical effect of these species. Good agreement with observation is obtained for stratospheric motion patterns, meridional circulations, ozone density as a function of height and latitude, eddy transports of ozone, surface destruction of ozone, and correlations of ozone with other variables. The annual cycle of columnar ozone in high latitudes is present, but at a smaller amplitude than observed. Vertical transport of ozone downward from the main generation level at 30 km is accomplished primarily by small-scale eddy diffusion between 20 and 30 km and again near the ground; large-scale vertical transport dominates inbetween. The model predicts a secondary maximum in ozone mixing ratio at 45 km somewhat equatorward of the winter polar-night zone. This feature, recently observed from satellite measurements, is thought to be caused by the temperature-dependence of reaction rates in the Chapman scheme. The principal deficiency of the model is an underprediction of the spring ozone concentration in high latitudes in the lower stratosphere. (auth)

• Research Organization: Massachusetts Inst. of Tech., Cambridge
• OSTI ID: 7366949
• Journal Information: J. Atmos. Sci.; (United States), Journal Name: J. Atmos. Sci.; (United States) Vol. 32:1; ISSN JAHSA
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring &amp; Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
CHALCOGENIDES
CHEMISTRY
CRYOGENIC FLUIDS
EARTH ATMOSPHERE
ELEMENTS
FLUIDS
GLOBAL ASPECTS
HYDROGEN
MATHEMATICAL MODELS
METEOROLOGY
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
OZONE
PHOTOCHEMISTRY
SEASONAL VARIATIONS
VARIATIONS