Observations and theory of the solar semidiurnal tide in the mesosphere of Venus

Details Observations and theory of the solar semidiurnal tide in the mesosphere of Venus Observations and theory of the solar semidiurnal tide in the mesosphere of Venus

Nov 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984natur.312..431f&link_type=abstract

Nature (ISSN 0028-0836), vol. 312, Nov. 29, 1984, p. 431-434.

Physics

19

Atmospheric Tides, Mesosphere, Venus Atmosphere, Brunt-Vaisala Frequency, Infrared Radiometers, Meridional Flow, Wind Velocity

Scientific paper

The 1978 Pioneer Venus mission, in addition to producing strong IR radiometer experiment evidence for the existence of a semidiurnal solar tide in the Venus mesosphere, has yielded radiative flux and cloud particle distribution data about the structure of solar heating and IR cooling which facilitate calculations of tidal forcing functions and estimates of radiative dissipation rates. It is presently shown that a physically reasonable mean flow can be found which leads to theoretically predicted tides that are in excellent agreement with those observed. The zonal mean flow obtained exhibits a maximum velocity of about 130 m/sec at 70 km altitude, decreasing to about zero at 88 km, together with a jet-like meridional structure that strongly deviates from solid body rotation.

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