Apr 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989maph...27..293k&link_type=abstract
In International Council of Scientific Unions, Middle Atmosphere Program. Handbook for MAP, volume 27 p 293-302 (SEE N89-29853 2
Other
Atmospheric Heating, Atmospheric Tides, Diurnal Variations, Stratosphere, Thermosphere, Water Vapor, Atmospheric General Circulation Models, Atmospheric Pressure, Insolation, Traveling Waves, Wind Profiles
Scientific paper
Recently an interesting advancement in the study of nonmigrating tides has occurred. There have been two distinct approaches in works on this subject. One is based on mechanistic models as considering nonuniform global distribution of water vapor or heating only on land, solving a set of linear equations. It is found that insolation absorption of the nonuniformly distributed water vapor produces only weak nonmigrating tides in the lower thermosphere; the planetary boundary layer heating on land can explain the enhanced tides on land and those with short vertical wavelengths in the stratosphere. The other approach is novel and uses simulation on the general circulation model (GCM). This realistic model can reproduce tides globally and in many details. The enhancement of two nonmigrating modes as eastward traveling modes with a wave number 3 and westward traveling modes with a wave number 5 is in surprisingly good agreement with observation at sea level, at 700 mb and even at 300 mb.
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