A Compendium of Theoretical Atmospheric Tidal Structures. Part I. Model Description and Explicit Structures Due to Realistic Thermal and Gravitational Excitation.

摘要: Abstract : This report documents the equations, coefficient parameterizations, method of numerical solution, and results from a theoretical (numerical) model atmospheric tidal oscillations surface to 400 km. The westerly, northerly, vertical winds temperature are governed by four second order partial differential equations derived perturbation fluid for momentum, continuity, thermal energy, ideal gas law applied spherical, rotating, viscous atmosphere with anisotropic ion drag. represent perturbations about basic state latitude- height-dependent mean winds, temperature, composition. Model parameterizations described include temperatures, molecular eddy viscosity conductivity, ion-neutral collision frequency momentum transfer, solar lunar gravitational forcing. Thermal excitation occurs via absorption EUV UV radiation in thermosphere, H2O insolation troposphere lower stratosphere, O3 mesosphere. Ion-neutral coupling provides an important semidiurnal source F-region. In addition, extensive tabulations figures representing solutions diurnal temperatures every 6 deg latitude km presented equinox solstice conditions.