Simulation of generation and propagation of acoustic gravity...

INTERNATIONAL JOURNAL OF GEOMAGNETISM AND AERONOMY VOL. 5, GI2002, doi:10.1029/2004GI000064, 2004

Simulation of generation and propagation of acoustic gravity waves in the atmosphere during a rocket flight

R. R. Ahmadov , and V. E. Kunitsyn
Faculty of Physics, Moscow State University, Moscow, Russia

Abstract

[1] A model is created for the simulation of generation and propagation to large horizontal distances of the atmosphere waves generated by supersonic rocket flight. For this purpose, the system of two-dimensional nonlinear equations of the geophysical fluid dynamics was solved by the numerical method. It was found that a rocket flight excites a wide spectrum of waves in the atmosphere: from high-frequency acoustic waves to low-frequency internal gravity waves propagating to thousands kilometers without considerable attenuation. We simulated the ionospheric disturbances generated by propagation of these waves, taking into account the geomagnetic field influence. The analysis of our results and their comparison to the experimental data show that our model makes it possible to predict more correctly and in detail the properties of the atmospheric and ionospheric disturbances generated by rocket launchings.

Received 17 February 2004; accepted 18 June 2004; published 22 October 2004.

Keywords: Acoustic gravity waves (AGW); Generation of AGW; Rocket launchings.

Index Terms: 0341 Atmospheric Composition and Structure: Middle atmosphere--constituent transport and chemistry; 0350 Atmospheric Composition and Structure: Pressure, density, and temperature; 3337 Meteorology and Atmospheric Dynamics: Numerical modeling and data assimilation.

Citation: Ahmadov, R. R., and V. E. Kunitsyn (2004), Simulation of generation and propagation of acoustic gravity waves in the atmosphere during a rocket flight, Int. J. Geomagn. Aeron., 5, GI2002, doi:10.1029/2004GI000064.