Medium scale gravity waves and their non linear interaction with the means flow  A numerical study
Abstract
A statistical estimate of the energy transported by mediumscale gravity waves has been developed by analysis of a selected sample. The waves originated from the troposphere and their vertical energy flux at 120 km had a mean value of one tenthousandth J/sq m/sec. This paper presents a theoretical study of the propagation of the waves within the thermosphere and evaluates the transfer of heat and momentum from the waves to the mean atmosphere. The main results are: the vertical velocity associated to the waves has a mean value of 20 m/s in the F1 region; the energy deposition takes place essentially between 120 and 200 km and the mean rate of increase of the atmosphere internal energy is 5 times 10 to the negative 10th J/cu m/sec; and the observable interaction is essentially a momentum transfer.
 Publication:

Journal of Atmospheric and Terrestrial Physics
 Pub Date:
 March 1979
 DOI:
 10.1016/00219169(79)901119
 Bibcode:
 1979JATP...41..279V
 Keywords:

 Atmospheric Circulation;
 Energy Transfer;
 Gravity Waves;
 Thermosphere;
 Wave Interaction;
 Heat Transfer;
 Internal Energy;
 Momentum Transfer;
 Propagation Velocity;
 Vertical Distribution;
 Vertical Motion;
 Geophysics