Traveling planetary‐scale Rossby waves in the winter stratosphere: The role of tropospheric baroclinic instability [PDF]
Geophysical Research Letters, 2012 The Southern Hemisphere winter stratosphere exhibits prominent traveling planetary‐scale Rossby waves, which generally are not able to induce Stratospheric Sudden Warmings. A series of runs of a simplified general circulation model is presented, aimed at
Daniela I. V. Domeisen, R. Alan Plumb
doaj +2 more sources
High-Power Hybrid Nanogenerator With Multi-Degree-of-Freedom Mechanical Coupling for Harvesting Water Wave Energy. [PDF]
Adv Sci (Weinh)A high‐power hybrid nanogenerator (HP‐HNG) with multi‐degree‐of‐freedom mechanical coupling is reported, integrating multi‐directional wave energy for output to achieve 1 + 1 > 2 energy harvesting. The HP‐HNG achieves a peak output power of 0.764 W, corresponding to a peak power density of 127.303 W m−3. At a wave frequency of 1 Hz, the HP‐HNG delivers
Ding S +9 more
europepmc +2 more sources
Periods of planetary waves in geomagnetic variations [PDF]
Annales Geophysicae, 1995 Periods of planetary waves, especially the 10- and 16-day waves, were found in Fourier analyses of 10-year geomagnetic time series from two mid-latitude stations in the northern hemisphere.
A. Kohsiek, K. H. Glassmeier, T. Hirooka
doaj +1 more source
Observing System Simulation Experiment to Reproduce Kelvin Wave in the Venus Atmosphere
Atmosphere, 2020 Planetary-scale 4-day Kelvin-type waves at the cloud top of the Venus atmosphere have been reported from the 1980s, and their significance for atmospheric dynamics has been pointed out.
Norihiko Sugimoto +7 more
doaj +1 more source
Planetary Waves over Antarctica [PDF]
, 2022 Denne oppgaven undersøker hypotesen lagt frem av Alan Plumb i 1989 med formålet om å forklare nedkjølingen midtvinter i mesosfæren over Antarktis. Fundamentet til denne hypotesen bygger på at de planetarisk bølgene ikke forplanter seg oppover i atmosfæren da vinden når en styrke som går over den øvre grensen til Charney-Drazin kriteriet.
Andresen, Sigurd Nord
openaire +2 more sources
Multiple satellite observations of oceanic planetary waves: techniques and findings [PDF]
, 2003 Recent satellite-based observations of oceanic planetary waves have improved our knowledge of the wave properties and lead to advancements in the theory.
Cipollini, Paolo
core +2 more sources
A dynamics-based separation of deep and shallow stratospheric circulation branches [PDF]
Atmospheric Chemistry and PhysicsThe wave-driven Brewer–Dobson circulation plays a crucial role in determining the transport of trace gases and aerosols in the stratosphere. We examine the structure of the circulation based on reanalysis data (ERA5, ERA-Interim, MERRA2, and JRA55) and ...
R. Baikhadzhaev +6 more
doaj +1 more source
Stratospheric tropical warming event and its impact on the polar and tropical troposphere [PDF]
Atmospheric Chemistry and Physics, 2017 Stratosphere–troposphere coupling is investigated in relation to middle atmospheric subtropical jet (MASTJ) variations in boreal winter. An exceptional strengthening of the MASTJ occurred in association with a sudden equatorward shift of the ...
K. Kodera +4 more
doaj +1 more source
Long extra-tropical planetary wave propagation in the presence of slowly varying mean flow and bottom topography. II: ray propagation and comparison with observations [PDF]
, 2003 Ray theory is used to predict phase and group velocities for long planetary waves under realistic, albeit slowly varying, oceanic conditions. The results are compared with local theory using fields smoothed to the same amount (9° latitude/longitude) as ...
Killworth, Peter D. +9 more
core +1 more source
Oceanic planetary waves in the coupled ocean-atmosphere system [PDF]
, 2005 The propagation of planetary, or Rossby, waves is studied under the effects of different atmospheric couplings. First, analytical matchings are formulated in which a Rossby wave is coupled to different thermodynamical atmospheres, from a simple heat flux
Farneti, R.
core +2 more sources