Accession Number : AD0762369

Title :   A Preliminary Study of the Transient Response of the Atmosphere Produced by Mid-Tropospheric Heating.

Descriptive Note : Final rept. 12 Nov 71-11 Feb 73,

Corporate Author : RESEARCH TRIANGLE INST DURHAM N C

Personal Author(s) : Vukovich,Fred M.

Report Date : MAY 1973

Pagination or Media Count : 42

Abstract : A simple linear model is developed to study the transient response of the atmosphere, a system of internal gravity waves, due to midtropospheric heating. The effects of varying stability, mean wind, the horizontal and the vertical distribution of the heating, and the rate at which heat is added are presented. It was found that under certain conditions specifically related to the vertical thickness of the layer heated and the stability of the air, the vertical velocities in the upper and lower atmosphere attain magnitudes in excess of three meters per second. The magnitude of the vertical velocities will increase further if the rate at which heat is added is increased. Decreasing the horizontal dimensions of the region where heat is added does not change the magnitude of the vertical velocities appreciably except for the gravity wave with the largest vertical wavelength; however, the horizontal scale of the gravity wave systems is smaller and wave speeds are less since they are proportional to horizontal wavelength. (Author)

Descriptors :   (*TROPOSPHERE, HEATING), ATMOSPHERE MODELS, MATHEMATICAL MODELS, MICROBAROMETRIC WAVES, ATMOSPHERIC MOTION, TRANSIENTS

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE