Abstract
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 language | English |
|---|---|
| Title of host publication | Proc. VarSITI Completion General Symposium, SCOSTEP |
| Place of Publication | 10-14 June Sofia, Bulgaria |
| Pages | 12 |
| Publication status | Published - 2019 |
Cite this
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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 -