Cover: Simple Models of Thermally Driven Mesospheric Circulation.

Simple Models of Thermally Driven Mesospheric Circulation.

Published 1964

by Conway B. Leovy

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Possible thermally driven symmetric circulations of the mesosphere and upper stratosphere are considered, subject to certain assumptions: (1) the motions are in hydrostatic and geostrophic balance, (2) they are small perturbations about a state of rest defined by the horizontal average of the radiative equilibrium temperature, (3) the eddy fluxes of momentum and heat act only as Rayleigh friction and Newtonian conductivity or as vertical eddy viscosity and conductivity. The assumption of small perturbations is justified by consideration of photochemical and radiative processes.

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