TY - JOUR

T1 - Modified Parameterization Scheme of Orographic Gravity Waves in the SOCOL Chemistry-Climate Model

AU - Коваль, Андрей Владиславович

AU - Гаврилов, Николай Михайлович

AU - Зубов, Владимир Аркадьевич

AU - Розанов, Евгений Владимирович

AU - Головко, Анастасия Германовна

N1 - Koval, A.V., Gavrilov, N.M., Zubov, V.A., Rozanov, E.V., Golovko, A.G. (2024) Modified Parameterization Scheme of Orographic Gravity Waves in the SOCOL Chemistry-Climate Model // Pure Appl. Geophys. DOI: 10.1007/s00024-024-03619-5

PY - 2024/12/13

Y1 - 2024/12/13

N2 - This paper describes the results of modifying theparametrization of subgrid stationary orographic gravity waves(OGWs) in the chemistry-climate model SOCOL, version 3. Theoriginally used OGW parameterization is modified using polarization relations for stationary waves in the rotating atmosphere.Parameterizing the OGW generation by the Earth’s topography atsubgrid scales follows the widely used Lott and Miller scheme, butthe expressions for calculating the vertical profiles of OGWamplitudes, wave drag and heat influx, are modified. Test simulations of the general atmospheric circulation for 10 years (from2009 to 2018) have been launched with the SOCOL modelinvolving the modified OGW parameterization. Using the realisticprofiles of the background wind and temperature, characteristics ofOGWs propagating in the atmosphere from the Earth’s surface tothe heights of about 80 km are simulated for different locations inthe Northern and Southern Hemispheres. Comparisons with theMERRA2 reanalysis data show that the modified OGW parameterization provides better agreement of simulated and observedmultiyear-mean zonal wind and temperature in the mesosphere andlower thermosphere region. The modified parameterization can beused in other atmospheric circulation models.

AB - This paper describes the results of modifying theparametrization of subgrid stationary orographic gravity waves(OGWs) in the chemistry-climate model SOCOL, version 3. Theoriginally used OGW parameterization is modified using polarization relations for stationary waves in the rotating atmosphere.Parameterizing the OGW generation by the Earth’s topography atsubgrid scales follows the widely used Lott and Miller scheme, butthe expressions for calculating the vertical profiles of OGWamplitudes, wave drag and heat influx, are modified. Test simulations of the general atmospheric circulation for 10 years (from2009 to 2018) have been launched with the SOCOL modelinvolving the modified OGW parameterization. Using the realisticprofiles of the background wind and temperature, characteristics ofOGWs propagating in the atmosphere from the Earth’s surface tothe heights of about 80 km are simulated for different locations inthe Northern and Southern Hemispheres. Comparisons with theMERRA2 reanalysis data show that the modified OGW parameterization provides better agreement of simulated and observedmultiyear-mean zonal wind and temperature in the mesosphere andlower thermosphere region. The modified parameterization can beused in other atmospheric circulation models.

U2 - 10.1007/s00024-024-03619-5

DO - 10.1007/s00024-024-03619-5

M3 - Article

VL - 182

SP - 255

EP - 270

JO - Pure and Applied Geophysics

JF - Pure and Applied Geophysics

SN - 0033-4553

ER -