Results 21 to 30 of about 384,878 (250)

Signature of gravity wave propagations from the troposphere to ionosphere [PDF]

open access: yesAnnales Geophysicae, 2022
We observed a gravity wave (GW) signature in the OH emission layer in the upper mesosphere, and 4 h later, a medium-scale travelling ionospheric disturbance (MSTID) in the OI 630 nm emission layer. Spectral analysis of the two waves showed that both have
H. Takahashi   +9 more
doaj   +1 more source

Internal Gravity Waves [PDF]

open access: yes, 2019
The ocean's interior is filled with waves that can only exist because the ocean is vertically stratified in temperature and salinity. Like waves at the ocean surface, internal waves are restored by gravity. These internal gravity waves are generated by wind, tides, and low-frequency flows.
Buijsman, Maarten C.   +3 more
openaire   +2 more sources

Intercomparison of AIRS and HIRDLS stratospheric gravity wave observations [PDF]

open access: yesAtmospheric Measurement Techniques, 2018
We investigate stratospheric gravity wave observations by the Atmospheric InfraRed Sounder (AIRS) aboard NASA's Aqua satellite and the High Resolution Dynamics Limb Sounder (HIRDLS) aboard NASA's Aura satellite.
C. I. Meyer   +4 more
doaj   +1 more source

Intermittency of gravity wave potential energies and absolute momentum fluxes derived from infrared limb sounding satellite observations [PDF]

open access: yesAtmospheric Chemistry and Physics, 2022
Atmospheric gravity waves contribute significantly to the driving of the global atmospheric circulation. Because of their small spatial scales, their effect on the circulation is usually parameterized in general circulation models.
M. Ern, P. Preusse, M. Riese
doaj   +1 more source

Gravity wave transmission diagram [PDF]

open access: yesAnnales Geophysicae, 2015
A new method of obtaining power spectral distribution of gravity waves as a function of ground-based horizontal phase speed and propagation direction from airglow observations has recently been proposed.
Y. Tomikawa, Y. Tomikawa
doaj   +1 more source

The nonlinear effects on the characteristics of gravity wave packets: dispersion and polarization relations [PDF]

open access: yesAnnales Geophysicae, 2000
By analyzing the results of the numerical simulations of nonlinear propagation of three Gaussian gravity-wave packets in isothermal atmosphere individually, the nonlinear effects on the characteristics of gravity waves are studied quantitatively.
S.-D. Zhang, F. Yi, J.-F. Wang
doaj   +1 more source

CRITICAL GRAVITY WAVES

open access: yesThe Thirteenth Marcel Grossmann Meeting, 2015
11 pages. v2 References added.
Ayón-Beato, Eloy   +2 more
openaire   +2 more sources

Long-term MST radar observations of vertical wave number spectra of gravity waves in the tropical troposphere over Gadanki (13.5° N, 79.2° E): comparison with model spectra [PDF]

open access: yesAnnales Geophysicae, 2008
The potential utility of Mesosphere-Stratosphere-Troposphere (MST) radar measurements of zonal, meridional and vertical winds for divulging the gravity wave vertical wave number spectra is discussed. The data collected during the years 1995–2004
A. Narendra Babu   +5 more
doaj   +1 more source

Gravity wave penetration into the thermosphere: sensitivity to solar cycle variations and mean winds [PDF]

open access: yesAnnales Geophysicae, 2008
We previously considered various aspects of gravity wave penetration and effects at mesospheric and thermospheric altitudes, including propagation, viscous effects on wave structure, characteristics, and damping, local body forcing, responses to solar
D. C. Fritts, S. L. Vadas
doaj   +1 more source

Climatology, long-term variability and trend of resolved gravity wave drag in the stratosphere revealed by ERA5 [PDF]

open access: yesWeather and Climate Dynamics
Internal gravity waves have well-known importance for atmospheric dynamics, transport and coupling between atmospheric layers, and their parameterized forcing affects the circulation in climate models, especially in the stratosphere.
Z. Procházková   +2 more
doaj   +1 more source

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