Properties of thermospheric gravity waves on earth, Venus and MarsA spectral model with spherical harmonics and Fourier components that can simulate atmospheric perturbations in the global geometry of a multiconstituent atmosphere is presented. The boundaries are the planetary surface where the transport velocities vanish and the exobase where molecular heat conduction and viscosity dominate. The time consuming integration of the conservation equations is reduced to computing the transfer function (TF) which describes the dynamic properties of the medium divorced from the complexities in the temporal and horizontal variations of the excitation source. Given the TF, the atmospheric response to a chosen source distribution is then obtained in short order. Theoretical studies are presented to illuminate some properties of gravity waves on earth, Venus and Mars.
Document ID
19920067806
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mayr, H. G. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Harris, I. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Pesnell, W. D. (Applied Research Corp. Landover, MD, United States)