scholarly journals Eddy mixing, gravity waves and the intermittent turbulence in atmospheric flows under stronger stratification

2021 ◽  
Author(s):  
L. I. Kurbatskaya
Keyword(s):  
Gravity Waves ◽  
Intermittent Turbulence ◽  
Atmospheric Flows

scholarly journals Gravity Wave Diagnostics and Characteristics in Mesoscale Fields

2015 ◽  
Vol 72 (11) ◽  
pp. 4372-4392 ◽  
Author(s):  
Christopher G. Kruse ◽  
Ronald B. Smith
Keyword(s):  
Gravity Wave ◽  
Energy Flux ◽  
Gravity Waves ◽  
Numerical Models ◽  
Mountain Wave ◽  
Atmospheric Flows ◽  
Vertical Propagation ◽  
The Relationship ◽  
Zonal Momentum ◽  
Selection Of

Abstract As numerical models of complex atmospheric flows increase their quality and resolution, it becomes valuable to isolate and quantify the embedded resolved gravity waves. The authors propose a spatial filtering method combined with a selection of quadratic diagnostic quantities such as heat, momentum, and energy fluxes to do this. These covariant quantities were found to be insensitive to filter cutoff length scales between 300 and 700 km, suggesting the existence of a “cospectral gap.” The gravity waves identified with the proposed method display known properties from idealized studies, including vertical propagation, upwind propagation, the relationship between momentum and energy flux, and agreement with fluxes derived from an alternative method involving simulations with and without terrain. The proposed method is applied to 2- and 6-km-resolution realistic WRF simulations of orographic and nonorographic gravity waves over and around New Zealand within complex frontal cyclones. Deep mountain wave, shallow mountain wave, jet-generated gravity wave, and convection-generated gravity wave events were chosen for analysis. The four wave events shared the characteristics of positive vertical energy flux, negative zonal momentum flux, and upwind horizontal energy flux. Two of the gravity wave events were dissipated nonlinearly.

Home computers search for gravity waves

Nature ◽  
2005 ◽  
Author(s):  
Geoff Brumfiel
Keyword(s):  
Gravity Waves ◽  
Home Computers

Model of the internal gravity waves excited by lithospheric greenhouse effect gases

2001 ◽  
Vol 7 (2s) ◽  
pp. 26-33 ◽  
Author(s):  
O.E. Gotynyan ◽  
◽  
V.N. Ivchenko ◽  
Yu.G. Rapoport ◽  
◽  
...  
Keyword(s):  
Gravity Waves ◽  
Greenhouse Effect ◽  
Internal Gravity Waves

An approximate dispersion equation for atmosphere gravity waves

2011 ◽  
Vol 17 (1) ◽  
pp. 43-46 ◽  
Author(s):  
G.V. Lizunov ◽  
◽  
A.Yu. Leontiev ◽  
Keyword(s):  
Dispersion Equation ◽  
Gravity Waves

Height of the penetration into the ionosphere for internal atmosphere gravity waves

2014 ◽  
Vol 20 (4(89)) ◽  
pp. 31-41 ◽  
Author(s):  
G.V. Lizunov ◽  
◽  
A.Y. Leontiev ◽  
Keyword(s):  
Gravity Waves

Acoustic-Gravity Waves in Whirling Polar Thermosphere

2015 ◽  
Vol 47 (9) ◽  
pp. 10-22 ◽  
Author(s):  
Yuriy P. Ladikov-Roev ◽  
Oleg K. Cheremnykh ◽  
Alla K. Fedorenko ◽  
Vladimir E. Nabivach
Keyword(s):  
Gravity Waves ◽  
Acoustic Gravity Waves

Euler solutions for airfoils in inhomogeneous atmospheric flows

1999 ◽  
Author(s):  
Caroline Weishaeupl ◽  
Boris Laschka
Keyword(s):  
Atmospheric Flows
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