Results 21 to 30 of about 2,322 (215)

Atmospheric waves as scaling, turbulent phenomena [PDF]

open access: yesAtmospheric Chemistry and Physics, 2014
It is paradoxical that, while atmospheric dynamics are highly nonlinear and turbulent, atmospheric waves are commonly modelled by linear or weakly nonlinear theories. We postulate that the laws governing atmospheric waves are in fact high-Reynolds-number
J. Pinel, S. Lovejoy
doaj   +1 more source

Impact of the Mt. Pinatubo volcaniceruption on the lower ionosphere andatmospheric waves over Central Europe

open access: yesAnnals of Geophysics, 2003
The very strong volcanic eruption of Mt. Pinatubo in June 1991 directly affected the troposphere and lower and middle stratosphere. Here we look at its effects in the mesopause region as revealed by the radio wave absorption measurements in the lower ...
J. Lastovicka
doaj   +1 more source

Observation based climatology Martian atmospheric waves perturbation Datasets

open access: yesScientific Data, 2023
The Martian atmospheric waves perturbation Datasets (MAWPD) version 2.0 is the first observation-based climatology dataset of Martian atmospheric waves. It contains climatology-gridded temperature, gravity waves, and tides spanning the whole Martian year.
Jie Zhang   +8 more
doaj   +1 more source

Power spectrum features of the near-Earth atmospheric electric field in Kamchatka

open access: yesAnnals of Geophysics, 2004
Power spectrum of the diurnal variations of the quasi-electrostatic field Ez in the near-Earth atmosphere have been presented for the first time. The Ez power spectrum variations in the period of fine weather have been shown to exhibit two bands of the ...
S. E. Smirnov   +4 more
doaj   +1 more source

Molecular Kinetic Simulations of Transient and Steady Wave Propagation into a Planet’s Exosphere

open access: yesAtmosphere, 2023
The vertical propagation of wave energy into a planet’s exosphere, a process that affects atmospheric evolution, is calculated here using 1D molecular kinetic simulations.
Lucia Tian   +5 more
doaj   +1 more source

Rayleigh-wave coupling to atmospheric compression waves* [PDF]

open access: yesBulletin of the Seismological Society of America, 1952
AbstractThe theory of dispersive Rayleigh waves coupled to atmospheric compressional waves is derived for the case of a solid surface layer. Numerical computation of phase and group velocity curves indicates that an additional branch may be introduced to the dispersion curves as a result of air coupling.
Jardetzky, Wenceslas S., 1896-1962   +1 more
openaire   +2 more sources

Dislocations in Magnetohydrodynamic Waves in a Stellar Atmosphere [PDF]

open access: yesPhysical Review Letters, 2013
We describe the presence of wavefront dislocations in magnetohydrodynamic waves in stratified stellar atmospheres. Scalar dislocations such as edges and vortices can appear in Alfvén waves, as well as in general magneto-acoustic waves. We detect those dislocations in observations of magnetohydrodynamic waves in sunspots in the solar chromosphere ...
A. López Ariste   +2 more
openaire   +4 more sources

Alfvén Waves in the Lower Solar Atmosphere [PDF]

open access: yesScience, 2009
The flow of energy through the solar atmosphere and the heating of the Sun's outer regions are still not understood. Here, we report the detection of oscillatory phenomena associated with a large bright-point group that is 430,000 square kilometers in area and located near the solar disk center.
Jess, David B.   +5 more
openaire   +5 more sources

Electromagnetic ULF/ELF oscillations caused by the eruption of the Tonga volcano

open access: yesSolar-Terrestrial Physics, 2023
The eruption of the Tonga volcano on January 13 and 15, 2022 and related intense lightning activity led to the excitation of a number of specific electromagnetic oscillations in different frequency ranges.
Martines-Bedenko V. A.   +3 more
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

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