Results 31 to 40 of about 110,240 (298)
, 2020 Energy and momentum deposition from planetary-scale Rossby waves as well as from small-scale gravity waves (GWs) largely control stratospheric dynamics.
Danker, Jessica +5 more
core +1 more source
More evidence for a planetary wave link with midlatitude E region coherent backscatter and sporadic E layers [PDF]
Annales Geophysicae, 2000 Measurements of midlatitude E region coherent backscatter obtained during four summers with SESCAT, a 50 MHz Doppler system operating in Crete, Greece, and concurrent ionosonde recordings from the same ionospheric volume obtained with a CADI for one ...
M. Voiculescu +5 more
doaj +1 more source
Spontaneous generation of inertial waves from boundary turbulence in a librating sphere [PDF]
, 2013 In this work, we report the excitation of inertial waves in a librating sphere even for libration frequencies where these waves are not directly forced.
Bars, Michael Le +2 more
core +3 more sources
Properties of internal planetary-scale inertio gravity waves in the mesosphere [PDF]
Annales Geophysicae, 2004 At high latitudes in the upper mesosphere, horizontal wind oscillations have been observed with periods around 10h. Waves with such a period are generated in our Numerical Spectral Model (NSM), and they are identified as planetary-scale inertio ...
H. G. Mayr +4 more
doaj +1 more source
Arctic amplification: does it impact the polar jet stream?
Tellus: Series A, Dynamic Meteorology and Oceanography, 2016 It has been hypothesised that the Arctic amplification of temperature changes causes a decrease in the northward temperature gradient in the troposphere, thereby enhancing the oscillation of planetary waves leading to extreme weather in mid-latitudes. To
Valentin P. Meleshko +4 more
doaj +1 more source
Tropopause-level planetary wave source and its role in two-way troposphere–stratosphere coupling [PDF]
Weather and Climate Dynamics, 2020 Atmospheric planetary waves play a fundamental role in driving stratospheric dynamics, including sudden stratospheric warming (SSW) events. It is well established that the bulk of the planetary wave activity originates near the surface.
L. Boljka, T. Birner
doaj +1 more source
A phase-space study of jet formation in planetary-scale fluids
, 2009 The interaction between planetary waves and an arbitrary zonal flow is studied from a phase-space viewpoint. Using the Wigner distribution, a planetary wave Vlasov equation is derived that includes the contribution of the mean flow to the zonal potential
Wordsworth, Robin D.
core +2 more sources
A model of mid-latitude E-region plasma convergence inside a planetary wave cyclonic vortex [PDF]
Annales Geophysicae, 2002 Recently, Shalimov et al. (1999) proposed a new mechanism for large-scale accumulation of long-lived metallic ions in the mid-latitude ionosphere driven by planetary waves in the lower thermosphere.
S. Shalimov +3 more
doaj +1 more source
Stratospheric control of planetary waves [PDF]
Geophysical Research Letters, 2016 AbstractThe effects of imposing at various altitudes in the stratosphere zonally symmetric circulation anomalies associated with a stratospheric sudden warming are investigated in a mechanistic circulation model. A shift of the tropospheric jet is found even when the anomalies are imposed only above 2 hPa.
Peter Hitchcock, Peter H. Haynes
openaire +1 more source
Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges
Advanced Functional Materials, EarlyView.Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley +1 more source