Results 11 to 20 of about 6,674 (308)
A case study of gravity waves in noctilucent clouds [PDF]
Annales Geophysicae, 2004 We present a case study of a noctilucent cloud (NLC) display appearing on 10-11 August 2000 over Northern Sweden. Clear wave structures were visible in the clouds and time-lapse photography was used to derive the parameters characterising the gravity ...
P. Dalin +5 more
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La Soufriere Volcanic Eruptions Launched Gravity Waves Into Space [PDF]
, 2022 Atmospheric gravity waves can be excited by explosive volcanic eruptions and may reach Earth's upper atmosphere. In this study, we report on mesoscale concentric gravity waves observed in the mesopause airglow layer following the La Soufriere volcano ...
Kahn, Ralph +13 more
core +1 more source
A review of atmospheric gravity waves and travelling ionospheric disturbances: 1982-1995 [PDF]
Annales Geophysicae, 1996 Recent investigations of atmospheric gravity waves (AGW) and travelling ionospheric disturbances (TID) in the Earth\'s thermosphere and ionosphere are reviewed. In the past decade, the generation of gravity waves at high latitudes and their subsequent
K. Hocke, K. Schlegel
doaj +1 more source
Hydromagnetic Gravity Waves in the Solar Atmosphere [PDF]
The Astrophysical Journal, 2000 We show that Alfven gravity waves propagating in a gravitationally stratified atmosphere do not suffer damping as a result of the rate of working of the gravity drift current on the electric field of the waves. A self-consistent treatment involving conservation of total energy, Poynting's theorem, and the rate of working of the various drift currents ...
McKenzie, J., Axford, W.
openaire +2 more sources
Anais da Academia Brasileira de Ciências, 2023 The thermal dynamics of the upper atmosphere, especially in the mesosphere, have been improving our understanding about the effects of climate change, as well as how the dynamics and general circulation in the upper atmosphere are driven by different ...
JOSÉ VALENTIN BAGESTON +8 more
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GRACILE: a comprehensive climatology of atmospheric gravity wave parameters based on satellite limb soundings [PDF]
Earth System Science Data, 2018 Gravity waves are one of the main drivers of atmospheric dynamics. The spatial resolution of most global atmospheric models, however, is too coarse to properly resolve the small scales of gravity waves, which range from tens to a few thousand ...
M. Ern +7 more
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A Brief Overview of Gravity Wave Retrieval Techniques From Observations
Frontiers in Astronomy and Space Sciences, 2022 Atmospheric gravity waves (GWs) are important in driving the middle and upper atmosphere dynamics on Earth. Here, we provide a brief review of the most common techniques of retrieving gravity wave activity from observations.
Md Nazmus Sakib, Erdal Yiğit
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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
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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 +18 more
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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) +14 more
core +1 more source