gravity wave
Seasonal variations of gravity wave structures in OH airglow with a CCD imager at Shigaraki
... dominant gravity wave pattern in the OH ...respectively. Wave parameters such as horizontal wavelength, period, and horizontal phase veloci- ties (speed and direction) are investigated for four ...
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Determination of gravity wave parameters in the airglow combining photometer and imager data
... atmospheric gravity waves in the upper at- mosphere is extremely ...propagating gravity wave is a very vital aspect in in- vestigating the coupling dynamics between different regions of the ...
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Statistics of surface gravity wave turbulence in the space and time domains
... of gravity wave turbulence statistics in both the x-domain and the ...larger wave amplitudes, but it is not possible to observe the ZF state in its purity because the two fundamental limits of the ...
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Interannual variability in the gravity wave drag – vertical coupling and possible climate links
... observations alone (Alexander and Sato, 2015; Geller et al., 2013). Only by employing substantial approximation and ne- glecting observational filter effects, Ern et al. (2011) gave a methodology to estimate absolute ...
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Vertical resolution dependence of gravity wave momentum flux simulated by an atmospheric general circulation model
... Alexander, M. J., Geller, M., McLandress, C., Polavarapu, S., Preusse, P., Sassi, F., Sato, K., Eckermann, S., Ern, M., Hert- zog, A., Kawatani, Y., Pulido, M., Shaw, T. A., Sigmond, M., Vincent, R., and Watanabe, S.: ...
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The Atmospheric Gravity Wave Transfer Function above Scott Base
... the atmospheric transfer function blocking), and A is a fitting parameter. The least squares fitting is done for each day of data, fitting equation 7.2 to the gravity wave kinetic energy height profile. In ...
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The vorticity dynamics of instability and turbulence in a breaking internal gravity wave
... internal gravity wave in a stratified, compressible, and sheared fluid to investigate the vorticity dynamics accompanying the transition from laminar to turbulent ...the wave field, yielding ...
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Effect of latitudinally displaced gravity wave forcing in the lower stratosphere on the polar vortex stability
... fined gravity wave (GW) hotspot, a sensitivity study based on simulations of the middle atmosphere circulation during northern winter was performed with a nonlinear, mechanis- tic, general circulation ...
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GRACILE: a comprehensive climatology of atmospheric gravity wave parameters based on satellite limb soundings
... zonal wave patterns if data from ascending and descend- ing nodes are taken ...ary wave patterns separately for ascending and descending nodes, tides can easily be removed from the observed tem- perature ...
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A two-dimensional Stockwell transform for gravity wave analysis of AIRS measurements
... AIRS gravity wave studies in the region ...horizontal wave- lengths (Ern et al., 2004); and, thirdly, wavelength-dependent wave amplitude attenuation corrections are not generally ap- plied to ...
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Combination of Lidar and Model Data for Studying Deep Gravity Wave Propagation
... Global meteorological analysis and forecast fields constitute an alternative to mesoscale simulations. For example, Khaykin et al. (2015) combined global-scale temperature analysis with Rayleigh lidar temperature ...
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Evaluation of methods for gravity wave extraction from middle-atmospheric lidar temperature measurements
... extracting gravity-wave-induced temperature perturbations from lidar ...if gravity waves over a wide range of periods are to be extracted from lidar temper- ature ...only gravity waves with ...
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Gravity wave spectra morphology in the Arctic and non-Arctic lower atmosphere
... Creating the “best” window is a result of optimizing the main lobe width and relative amplitude of the sidelobes. Since the data set is finite, there will always be sidelobes; however, they can be suppressed at the ...
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Effects of high latitude atmospheric gravity wave disturbances on artificial HF radar backscatter
... mospheric gravity wave-induced TIDs was inferred from the skip distance variation in the HF radar measurements and the electron density perturbations measured by incoherent scat- ter ...pump wave ...
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New perspectives on gravity wave remote sensing by spaceborne infrared limb imaging
... a gravity wave resolv- ing general circulation model (GCM), a mesoscale model and a dedicated mountain wave model by microwave nadir measurements of a mountain wave above the Scandinavian ...
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Simulating influences of QBO phases and orographic gravity wave forcing on planetary waves in the middle atmosphere
... orographic wave characteristics in the middle atmosphere, which depend significantly on season (Eckermann and Preusse 1999; Preusse et ...the wave sources in numerical general circulation models of the ...
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The response of superpressure balloons to gravity wave motions
... of gravity (buoy- ancy) waves ...simultaneous wave-induced varia- tions of density and vertical ...ity wave activity in the Southern Hemisphere upper tropo- sphere and lower ...study gravity ...
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Global analysis for periodic variations in gravity wave squared amplitudes and momentum fluxes in the middle atmosphere
... Gravity waves strongly influence the global circulation and the temperature structure in the middle atmosphere (Fritts and Alexander, 2003). Several observed major phe- nomena cannot be explained by radiative ...
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Gravity wave momentum flux in the upper mesosphere derived from OH airglow imaging measurements
... km) gravity waves and to estimate gravity wave momentum fluxes, using one-night OH airglow im- ages obtained at the Shigaraki MU observatory ...of gravity wave detection presented by ...
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Mesospheric gravity wave characteristics and identification of their sources around spring equinox over Indian low latitudes
... the wave- length estimation as the error is a function of pixel size on which the image is focused, which in the present case is ∼ ...the wave fronts by contrast ad- justment (for better ...50 wave ...
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