A zonally symmetric model for volcanic influence upon atmospheric circulation

Details A zonally symmetric model for volcanic influence upon atmospheric circulation A zonally symmetric model for volcanic influence upon atmospheric circulation

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984georl..11..303s&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 11, April 1984, p. 303-306.

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4

Air Land Interactions, Atmospheric Circulation, Atmospheric Effects, Atmospheric Heat Budget, Volcanoes, Wind Velocity, Angular Momentum, Atmospheric Tides, Climate Change, Climatology, Tropical Meteorology

Scientific paper

The effects of volcanic activity upon zonal wind flow in a model atmosphere are considered. A low latitude volcanic eruption could lower the tropospheric pole to equator temperature difference and thereby affect the atmospheric motions. When the temperature contrast decreases, the zonal wind velocities at high altitudes are reduced. To conserve angular momentum, the velocities in the lower atmosphere near the surface must increase, thus providing a momentum source for ocean currents. It is suggested that this momentum source may have played a role as a trigger for inducing the 1982-83 anomalous El Nino and possibly other climate changes.

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