Computer Science
Scientific paper
Apr 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989maph...27..132o&link_type=abstract
In International Council of Scientific Unions, Middle Atmosphere Program. Handbook for MAP, volume 27 p 132-140 (SEE N89-29853 2
Computer Science
Aerosols, Atmospheric Circulation, Atmospheric Composition, Solar Radiation, Southern Hemisphere, Stratosphere, Trace Contaminants, Chemical Composition, Irradiance, Ozone Depletion, Pollution Transport, Satellite Observation, Stratospheric Warming
Scientific paper
The aim of the MASH project is to study the dynamics of the middle atmosphere in the Southern Hemisphere, emphasizing inter-hemispheric differences. Both observational data and data from simulations with numerical models are being used. It is intended that MASH will be complemented by parallel studies on the transport and photochemistry of trace species in the Southern Hemisphere. Impetus for such studies has come from the unexpected finding of a springtime ozone hole over Antarctica. A summary of recent progress with the MASH project is given. Data from polar orbiting satellites are used to discuss the large scale circulation found in the Southern Hemisphere at extratropical latitudes. Comparisons are made with that of the Northern Hemisphere. Particular attention is paid to the springtime final warming, the most spectacular large scale phenomenon in the statosphere of the Southern Hemisphere. The circulation before and after this event has to be taken into account in theories for the formation and subsequent disappearance of the ozone hole.
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