Drag associated with 3D trapped lee waves over an axisymmetric obstacle in two-layer atmospheres
Sign Up to like & getrecommendations! Published in 2017 at "Quarterly Journal of the Royal Meteorological Society"
DOI: 10.1002/qj.3177
Abstract: Mountain wave drag is evaluated explicitly using linear theory and verified against numerical simulations for the flow of idealized two-layer atmospheres with piecewise-constant stratification over an axisymmetric mountain. Static stability is either higher in the… read more here.
Keywords: wave drag; trapped lee; lee waves; layer ... See more keywords
The effect of a stable boundary layer on orographic gravity‐wave drag
Sign Up to like & getrecommendations! Published in 2020 at "Quarterly Journal of the Royal Meteorological Society"
DOI: 10.1002/qj.3920
Abstract: Numerical simulations are carried out using the WRF model to explicitly calculate the ratio of orographic gravity wave drag (GWD) in the presence of a stable boundary layer (BL) to the inviscid drag in its… read more here.
Keywords: wave drag; gravity wave; orographic gravity; stable boundary ... See more keywords
On the interplay between horizontal resolution and wave drag and their effect on tidal baroclinic mode waves in realistic global ocean simulations
Sign Up to like & getrecommendations! Published in 2020 at "Ocean Modelling"
DOI: 10.1016/j.ocemod.2020.101656
Abstract: Abstract The effects of horizontal resolution and wave drag damping on the semidiurnal M 2 tidal energetics are studied for two realistically-forced global HYbrid Coordinate Ocean Model (HYCOM) simulations with 41 layers and horizontal resolutions… read more here.
Keywords: wave drag; resolution; mode; surface tide ... See more keywords
Impact of Parametrized Nonorographic Gravity Wave Drag on Stratosphere‐Troposphere Coupling in the Northern and Southern Hemispheres
Sign Up to like & getrecommendations! Published in 2018 at "Geophysical Research Letters"
DOI: 10.1029/2018gl078981
Abstract: The impact of parametrized nonorographic gravity wave drag (NOGWD) on the stratosphere-troposphere dynamical coupling in atmospheric models is relatively unexplored. Using the European Centre for Medium-Range Weather Forecasts Integrated Forecast System, we find that changes… read more here.
Keywords: wave drag; nonorographic gravity; gravity wave; impact parametrized ... See more keywords
Machine Learning Emulation of Gravity Wave Drag in Numerical Weather Forecasting
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Advances in Modeling Earth Systems"
DOI: 10.1029/2021ms002477
Abstract: We assess the value of machine learning as an accelerator for the parameterization schemes of operational weather forecasting systems, specifically the parameterization of nonorographic gravity wave drag. Emulators of this scheme can be trained to… read more here.
Keywords: wave drag; machine learning; gravity wave; weather forecasting ... See more keywords
A numerical study on the single pulsed energy addition based unsteady wave drag reduction at varied hypersonic flow regimes
Sign Up to like & getrecommendations! Published in 2020 at "Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering"
DOI: 10.1177/0954410020973134
Abstract: In this study, unsteady wave drag reduction in hypersonic flowfield using pulsed energy addition is numerically investigated. A single energy pulse is considered to analyze the time-averaged drag reduction/pulse. The blast wave creation, translation and… read more here.
Keywords: wave drag; energy; study; drag reduction ... See more keywords
Numerical Simulation of Wave Drag during Downslope Windstorms in Different Regions of Russia
Sign Up to like & getrecommendations! Published in 2018 at "Russian Meteorology and Hydrology"
DOI: 10.3103/s1068373918030081
Abstract: The wave drag is considered for downslope windstorms in Novorossiysk, on Novaya Zemlya, and in Pevek. The research is based on the results of numerical simulation with the WRF-ARW model. Special attention is paid to… read more here.
Keywords: wave drag; numerical simulation; simulation wave; downslope windstorms ... See more keywords
The semiannual oscillation (SAO) in the tropical middle atmosphere and its gravity wave driving in reanalyses and satellite observations
Sign Up to like & getrecommendations! Published in 2021 at "Atmospheric Chemistry and Physics"
DOI: 10.5194/acp-2021-190
Abstract: Abstract. Gravity waves play a significant role in driving the semiannual oscillation (SAO) of the zonal wind in the tropics. However, detailed knowledge of this forcing is missing, and direct estimates from global observations of… read more here.
Keywords: wave drag; saber; satellite observations; gravity wave ... See more keywords
Impact of gravity wave drag on the thermospheric circulation: implementation of a nonlinear gravity wave parameterization in a whole-atmosphere model
Sign Up to like & getrecommendations! Published in 2019 at "Annales Geophysicae"
DOI: 10.5194/angeo-37-955-2019
Abstract: Abstract. To investigate the effects of the gravity wave (GW) drag on the general circulation in the thermosphere, a nonlinear GW parameterization that estimates the GW drag in the whole-atmosphere system is implemented in a… read more here.
Keywords: parameterization; gravity wave; circulation; wave drag ... See more keywords