Hydrodynamic Green's functions for atmospheric oscillations

Details Hydrodynamic Green's functions for atmospheric oscillations Hydrodynamic Green's functions for atmospheric oscillations

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...203..154b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 203, no. 1, Sept. 1988, p. 154-161.

Astronomy and Astrophysics

Astrophysics

4

Brunt-Vaisala Frequency, Green'S Functions, Hydrodynamics, Solar Atmosphere, Solar Oscillations, Boundary Value Problems, Entropy, Gravity Waves, Pressure Distribution, Specific Heat

Scientific paper

A Green's function tensor is derived giving the response of an isothermal atmosphere to small disturbances representing deviations from a state of static stratification. A Hermitian differential operator is first derived that describes an adiabatic flow in a plane-parallel isothermal atmosphere. This operator is inverted using a Fourier transformation to give the Green's function tensor. The inverse Fourier transformation is then carried out for an axisymmetric initial condition. Different properties of g-modes and the range of validity of the anelastic approximation are discussed. An approximate, explicit solution for small bubbles is given.

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