Results 111 to 120 of about 60,257 (227)
A Helicity‐Based Analysis of the Stratospheric Polar Vortex Evolution
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 2, 28 January 2026.Abstract The Arctic atmosphere in the winter months of the Northern Hemisphere is influenced by a stratospheric polar vortex, characterized by strong westerly circumpolar winds and extremely low temperatures. These vortices impact surface weather in various ways, and their dynamics may be affected by recent anthropogenic climate change.
Niklas Dusch, Victor Avsarkisov
wiley +1 more source
Unstable periodic motion in turbulent flows [PDF]
Nonlinear Processes in Geophysics, 2006 Recently found unstable time-periodic solutions to the incompressible Navier-Stokes equation are reviewed to discuss their relevance to plane Couette turbulence and isotropic turbulence.
G. Kawahara, S. Kida, L. van Veen
doaj
An Epsilon‐Near‐Zero‐Based Nonlinear Platform for Ultrafast Re‐Writable Holography
Nanophotonics, Volume 15, Issue 2, 27 January 2026.We show that an unstructured, sub‐wavelength thick epsilon‐near‐zero material, such as ITO, can be efficiently used for ultrafast re‐writable holography over a broad bandwidth range. We showcase two powerful applications of our scheme, that is, spatial structuring of light and optical computation.
M. Zahirul Alam +5 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.Abstract High‐energy particles are prevalent in space, and magnetic reconnection is one of the physical processes responsible for their generation. The heating and acceleration of ions and electrons typically occur respectively in the ion diffusion region and the electron diffusion region.
S. Y. Huang +6 more
wiley +1 more source
New Journal of Physics, 2016 We investigate the scaling behavior of longitudinal and transverse structure functions in homogeneous and isotropic magneto-hydrodynamic (MHD) turbulence by means of an exact hierarchy of structure function equations as well as by direct numerical ...
J Friedrich +3 more
doaj +1 more source
Fluctuation-induced force in homogeneous isotropic turbulence. [PDF]
Sci Adv, 2020 Spandan V +3 more
europepmc +1 more source
Effect of Submerged Vegetation on Water Surface Geometry and Air–Water Momentum Transfer
Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.Abstract Understanding how submerged vegetation modifies the water surface is crucial for modeling momentum exchange between shallow waters and the atmosphere. In particular, quantifying its impact on the equivalent aerodynamic roughness of the water surface is essential for improved boundary‐layer parameterization in oceanic and atmospheric models. In
G. Foggi Rota, A. Chiarini, M. E. Rosti
wiley +1 more source
Turbulence, Waves, and Taylor’s Hypothesis for Heliosheath Observations
The Astrophysical JournalMagnetic field fluctuations measured in the heliosheath by the Voyager spacecraft are often characterized as compressible, as indicated by a strong fluctuating component parallel to the mean magnetic field.
L.-L. Zhao +8 more
doaj +1 more source
Subgrid or Reynolds stress-modeling for three-dimensional turbulence computations [PDF]
A review is given of recent advances in two distinct computational methods for evaluating turbulence fields, namely, statistical Reynolds stress modeling and turbulence simulation, where large eddies are followed in time.
Rubesin, M. W.
core +1 more source
Cross-spectral functions based on von Karman's spectral equation [PDF]
Cross-spectral functions for the vertical and longitudinal components of turbulence of a two-dimensional gust field are derived from the point correlation function for turbulence due to von Karman.
Houbolt, J. C., Sen, A.
core +1 more source