Results 31 to 40 of about 1,659,712 (297)

Dynamical influence of gravity waves generated by the Vestfjella Mountains in Antarctica: radar observations, fine-scale modelling and kinetic energy budget analysis [PDF]

Tellus: Series A, Dynamic Meteorology and Oceanography, 2012
Gravity waves generated by the Vestfjella Mountains (in western Droning Maud Land, Antarctica, southwest of the Finnish/Swedish Aboa/Wasa station) have been observed with the Moveable atmospheric radar for Antarctica (MARA) during the SWEDish Antarctic ...
Joel Arnault, Sheila Kirkwood
doaj   +1 more source

The contour-advective semi-Lagrangian hybrid algorithm approach to weather forecasting and freely propagating inertia-gravity waves in the shallow-water system [PDF]

, 2009
This thesis is aimed at extending the spherical barotropic contour-advective semi-Lagrangian (CASL) Algorithm, written in 1996 by David Dritschel and Maarten Ambaum, to more complex test cases within the shallow-water context.
Smith, Robert K.
core   +2 more sources

Impacts of acoustic and gravity waves on the ionosphere

Frontiers in Astronomy and Space Sciences, 2022
The impact of regional-scale neutral atmospheric waves has been demonstrated to have profound effects on the ionosphere, but the circumstances under which they generate ionospheric disturbances and seed plasma instabilities are not well understood ...
Kate Zawdie, Anna Belehaki, Meghan Burleigh, Min-Yang Chou, Manbharat S. Dhadly, Katelynn Greer, Alexa J. Halford, Dustin Hickey, Pavel Inchin, Stephen R. Kaeppler, Jeff Klenzing, Viswanathan Lakshmi Narayanan, Fabrizio Sassi, Mani Sivakandan, Jonathon M. Smith, Jonathon M. Smith, Nikolay Zabotin, Matthew D. Zettergren, Shun-Rong Zhang   +18 more
doaj   +1 more source

Effects of high-latitude atmospheric gravity wave disturbances on artificial HF radar backscatter [PDF]

, 2006
International audienceObservations of HF radar backscatter from artificial field-aligned irregularities in an ionosphere perturbed by travelling disturbances due to atmospheric gravity waves are presented.
Tim K. Yeoman (7583066), A. Senior, M. J. Kosch (7595327), I. W. McCrea, M. T. Rietveld (7594184), Rietveld, M. T., Senior, A., T. K. Yeoman, I. W. McCrea (7594871), M. T. Rietveld, Kosch, M. J., M. J. Kosch, A. Senior (3255282), McCrea, I. W., Yeoman, T. K.   +14 more
core   +2 more sources

Meteotsunami genesis - Atmospheric Internal Gravity Waves

, 2021
Meteorological tsunamis are known to be generated by atmospheric disturbances. However, little is known about how these atmospheric disturbances are created.
Clea Lumina Denamiel
core   +1 more source

Gravity Waves in Planetary Atmospheres: Their Effects and Parameterization in Global Circulation Models

Atmosphere, 2019
The dynamical and thermodynamical importance of gravity waves was initially recognized in the atmosphere of Earth. Extensive studies over recent decades demonstrated that gravity waves exist in atmospheres of other planets, similarly play a significant ...
Alexander S. Medvedev, Erdal Yiğit
doaj   +1 more source

Observations of in-situ generated gravity waves during a stratospheric temperature enhancement (STE) event [PDF]

Atmospheric Chemistry and Physics, 2011
Evidence for in situ generated atmospheric gravity waves associated with a stratospheric temperature enhancement (STE) are presented. The signatures of two sets of gravity waves are observed by molecular-aerosol lidar in conjunction with the early ...
A. J. Gerrard, Y. Bhattacharya, J. P. Thayer   +2 more
doaj   +1 more source

Characteristics of atmospheric gravity waves observed using the MU (Middle and Upper atmosphere) radar and GPS (Global Positioning System) radio occultation. [PDF]

Proc Jpn Acad Ser B Phys Biol Sci, 2014
The wind velocity and temperature profiles observed in the middle atmosphere (altitude: 10–100 km) show perturbations resulting from superposition of various atmospheric waves, including atmospheric gravity waves.
Tsuda T.
europepmc   +2 more sources

Atmospheric Gravity Waves: Processes and Parameterization [PDF]

Journal of the Atmospheric Sciences
Abstract Atmospheric predictability from subseasonal to seasonal time scales and climate variability are both influenced critically by gravity waves (GW). The quality of regional and global numerical models relies on thorough understanding of GW dynamics and its interplay with chemistry, precipitation, clouds, and climate across many scales.
Achatz, Ulrich, Alexander, M. Joan, Becker, Erich, Chun, Hye-Yeong, Dörnbrack, Andreas, Holt, Laura, Plougonven, Riwal, Polichtchouk, Inna, Sato, Kaoru, Sheshadri, Aditi, Stephan, Claudia Christine, van Niekerk, Annelize, Wright, Corwin J.   +12 more
openaire   +4 more sources

Perturbation in the atmospheric acoustic field from a large offshore wind farm in the presence of surface gravity waves [PDF]

, 2013
In this study a quantitatively reliable approximation of atmospheric sound wave propagation is given in the presence of a large wind farm. Rough sea surface is used as lower boundary condition at the sea surface, and an acoustic point source located at ...
Paskyabi, Mostafa Bakhoday
core   +1 more source