Main field of study: 011200 Physics
Area of specialization: Monitoring and Modelling of Planet Atmospheres
Department of Atmospheric Physics 
Scientific advisor: Doctor of Physical and Mathematical Sciences N.M. Gavrilov
Reviewer: Doctor of Physical and Mathematical Sciences A.I. Pogoreltsev

Trajectory simulation of acoustic-gravity waves in the atmosphere
N.O. Shevchuk

Noctilucent clouds observations allow us to determine characteristics of gravity wave, monitored in mesospere (wave length, wave observation height, propagation azimuth). Using this parameters in numerical simulation of vertical structure of gravity wave makes possible wave inverse ray traycing in the upper troposphere (to the heights of 10 km). We also apply technique, based on   WKBJ-approximation, to separate numerical solution to direct and refracted waves. Theoretical formula give the opportunity of estimation power characteristics of gravity wave source by values of background wind. The results obtained show good agreement between inverse ray tracing data and evaluation of source power characteristics.

The list of publication:
1.	Dalin, P. Evidence of the formation of noctilucent clouds due to propagation of an isolated gravity wave caused by a tropospheric occluded front / P. Dalin, et al. // Geophysical Research Letters. — 2015. — V.42— P.2037-2046