Dynamical and thermal effects of nonlinear acoustic-gravity waves in the upper atmosphere at high and low activity

Николай Михайлович Гаврилов, Сергей Петрович Кшевецкий

Research output

Abstract

Majority of acoustic-gravity waves (AGWs) observed at high altitudes are
supposed to be originated in the lower atmosphere by different sources and
propagate upwards. A high-resolution three-dimensional numerical model describing vertical propagation of nonlinear AGWs to the upper atmosphere from the ground was recently developed. Numerical modeling was made in a region of the Earth atmosphere with dimensions 500 km vertically and up to several thousand kilometers horizontally. Vertical profiles of the mean density, temperature, thermal conductivity and molecular viscosity are taken from standard atmospheric models. Numerical modeling for background vertical temperature and wind profiles matching high and small levels of solar activity (SA) shows that AGWs characteristics in the middle and upper atmosphere may change with changes in SA.
Original languageEnglish
Title of host publicationProc. VarSITI Completion General Symposium, SCOSTEP
Place of Publication10-14 June Sofia, Bulgaria
Pages12
Publication statusPublished - 2019

Cite this

Гаврилов, Н. М., & Кшевецкий, С. П. (2019). Dynamical and thermal effects of nonlinear acoustic-gravity waves in the upper atmosphere at high and low activity. In Proc. VarSITI Completion General Symposium, SCOSTEP (pp. 12). 10-14 June Sofia, Bulgaria.
Гаврилов, Николай Михайлович ; Кшевецкий, Сергей Петрович. / Dynamical and thermal effects of nonlinear acoustic-gravity waves in the upper atmosphere at high and low activity. Proc. VarSITI Completion General Symposium, SCOSTEP. 10-14 June Sofia, Bulgaria, 2019. pp. 12
@inproceedings{07607f04252c48719b8c1ff7ac6049d6,
title = "Dynamical and thermal effects of nonlinear acoustic-gravity waves in the upper atmosphere at high and low activity",
abstract = "Majority of acoustic-gravity waves (AGWs) observed at high altitudes aresupposed to be originated in the lower atmosphere by different sources andpropagate upwards. A high-resolution three-dimensional numerical model describing vertical propagation of nonlinear AGWs to the upper atmosphere from the ground was recently developed. Numerical modeling was made in a region of the Earth atmosphere with dimensions 500 km vertically and up to several thousand kilometers horizontally. Vertical profiles of the mean density, temperature, thermal conductivity and molecular viscosity are taken from standard atmospheric models. Numerical modeling for background vertical temperature and wind profiles matching high and small levels of solar activity (SA) shows that AGWs characteristics in the middle and upper atmosphere may change with changes in SA.",
author = "Гаврилов, {Николай Михайлович} and Кшевецкий, {Сергей Петрович}",
year = "2019",
language = "English",
pages = "12",
booktitle = "Proc. VarSITI Completion General Symposium, SCOSTEP",

}

Гаврилов, НМ & Кшевецкий, СП 2019, Dynamical and thermal effects of nonlinear acoustic-gravity waves in the upper atmosphere at high and low activity. in Proc. VarSITI Completion General Symposium, SCOSTEP. 10-14 June Sofia, Bulgaria, pp. 12.

Dynamical and thermal effects of nonlinear acoustic-gravity waves in the upper atmosphere at high and low activity. / Гаврилов, Николай Михайлович; Кшевецкий, Сергей Петрович.

Proc. VarSITI Completion General Symposium, SCOSTEP. 10-14 June Sofia, Bulgaria, 2019. p. 12.

Research output

TY - GEN

T1 - Dynamical and thermal effects of nonlinear acoustic-gravity waves in the upper atmosphere at high and low activity

AU - Гаврилов, Николай Михайлович

AU - Кшевецкий, Сергей Петрович

PY - 2019

Y1 - 2019

N2 - Majority of acoustic-gravity waves (AGWs) observed at high altitudes aresupposed to be originated in the lower atmosphere by different sources andpropagate upwards. A high-resolution three-dimensional numerical model describing vertical propagation of nonlinear AGWs to the upper atmosphere from the ground was recently developed. Numerical modeling was made in a region of the Earth atmosphere with dimensions 500 km vertically and up to several thousand kilometers horizontally. Vertical profiles of the mean density, temperature, thermal conductivity and molecular viscosity are taken from standard atmospheric models. Numerical modeling for background vertical temperature and wind profiles matching high and small levels of solar activity (SA) shows that AGWs characteristics in the middle and upper atmosphere may change with changes in SA.

AB - Majority of acoustic-gravity waves (AGWs) observed at high altitudes aresupposed to be originated in the lower atmosphere by different sources andpropagate upwards. A high-resolution three-dimensional numerical model describing vertical propagation of nonlinear AGWs to the upper atmosphere from the ground was recently developed. Numerical modeling was made in a region of the Earth atmosphere with dimensions 500 km vertically and up to several thousand kilometers horizontally. Vertical profiles of the mean density, temperature, thermal conductivity and molecular viscosity are taken from standard atmospheric models. Numerical modeling for background vertical temperature and wind profiles matching high and small levels of solar activity (SA) shows that AGWs characteristics in the middle and upper atmosphere may change with changes in SA.

UR - http://newserver.stil.bas.bg/VarSITI2019/

M3 - Conference contribution

SP - 12

BT - Proc. VarSITI Completion General Symposium, SCOSTEP

CY - 10-14 June Sofia, Bulgaria

ER -

Гаврилов НМ, Кшевецкий СП. Dynamical and thermal effects of nonlinear acoustic-gravity waves in the upper atmosphere at high and low activity. In Proc. VarSITI Completion General Symposium, SCOSTEP. 10-14 June Sofia, Bulgaria. 2019. p. 12