Mass, energy and momentum transport in the solar atmosphere
Abstract
A theoretical framework is outlined for the discussion of mass, momentum, and energy transport in the solar atmosphere. Theoretical aspects of solar atmospheric dynamics are reviewed, models of stellar atmospheres are described, and the dynamic equations for the solar atmosphere are derived from the Boltzmann equation. The equation of radiative transfer is discussed from the viewpoint of its role in the dynamic behavior of the atmosphere and its central importance in the diagnostic process. Spherically symmetric models of the solar atmosphere are examined, and it is shown that a classical model based on the joint assumptions of radiative and hydrostatic equilibrium is totally inadequate for the study of dynamic processes. The inhomogeneous solar atmosphere is investigated with emphasis on the subatmospheric nonthermal-energy storage modes (rotation, convection, and pulsation). Observed dynamic phenomena due to the penetration and leakage of mass, momentum, and kinetic energy from these storage modes into the atmosphere are discussed, including photospheric granulation, chromospheric oscillations, supergranulation, and microturbulence.
- Publication:
-
European Solar Meeting
- Pub Date:
- 1975
- Bibcode:
- 1975esm..meet...13C
- Keywords:
-
- Energy Transfer;
- Mass Transfer;
- Momentum Transfer;
- Solar Atmosphere;
- Atmospheric Circulation;
- Atmospheric Models;
- Atmospheric Physics;
- Bibliographies;
- Convective Flow;
- Dynamic Models;
- Linear Energy Transfer (Let);
- Oscillating Flow;
- Plasma Diagnostics;
- Radiative Transfer;
- Solar Flux Density;
- Uniform Flow;
- Solar Physics