Attenuation of acoustic-gravitational waves in an anisotropically turbulized radiating atmosphere
Abstract
The dispersion and polarization relations as well as the damping coefficient of acoustic-gravitational waves (AGWs) propagating in planetary atmospheres are obtained in a linear approximation and under assumptions of small dissipation parameters. Turbulent dissipation is examined in detail, taking into account the anisotropy of atmospheric turbulence and the dissipation effect of turbulent eddies with the linear and time scales being less than an AGW wavelength and period. The role of radiative heat exchange in AGW attenuation is reexamined since the addition of molecular dissipation to turbulent dissipation reduces the relative role of radiation. For particular cases of AGW, a numerical analysis is presented of wave attenuation times in the atmospheres of the earth, Mars, and Venus.
- Publication:
-
Akademiia Nauk SSSR Fizika Atmosfery i Okeana
- Pub Date:
- July 1975
- Bibcode:
- 1975FizAO..11..681G
- Keywords:
-
- Acoustic Attenuation;
- Atmospheric Attenuation;
- Gravitational Waves;
- Planetary Atmospheres;
- Wave Attenuation;
- Anisotropic Media;
- Atmospheric Turbulence;
- Earth Atmosphere;
- Mars Atmosphere;
- Turbulence Effects;
- Venus Atmosphere;
- Wave Equations