Spectral evolution of two-layer weak geostrophic turbulence. Part I: Typical scenarios [PDF]
Long-time evolution of large-scale geophysical flows is considered in a β-plane approximation. Motions in an infinite 2-layer model ocean are treated as a system of weakly nonlinear Rossby waves (weak geostrophic turbulence). The evolution
T. Soomere, T. Soomere
doaj
Characterisation of dust aerosols in the infrared from IASI and comparison with PARASOL, MODIS, MISR, CALIOP, and AERONET observations [PDF]
Infrared Atmospheric Sounder Interferometer (IASI) observations covering the period from July 2007 to December 2011 are interpreted in terms of monthly mean, 1°×1°, 10 μm dust Aerosol Optical Depth (AOD), mean altitude and coarse mode ...
S. Peyridieu +10 more
doaj +1 more source
Dynamics of Zonal Flows in Helical Systems [PDF]
A theory for describing collisionless long-time behavior of zonal flows in helical systems is presented and its validity is verified by gyrokinetic-Vlasov simulation.
"Sugama, H. +5 more
core +1 more source
Spatio-temporal structure of turbulent Reynolds stress zonal flow drive in 3D magnetic configuration
The poloidal dependence of the zonal flow drive and the underlying Reynolds stress structure are studied at the stellarator experiment TJ-K by means of a poloidal Langmuir-probe array.
B Schmid, P Manz, M Ramisch, U Stroth
doaj +1 more source
The structure of zonal jets in geostrophic turbulence [PDF]
The structure of zonal jets arising in forced-dissipative, two-dimensional turbulent flow on the β-plane is investigated using high-resolution, long-time numerical integrations, with particular emphasis on the late-time distribution of potential ...
Scott, Richard Kirkness +1 more
core +1 more source
An estimate of the eddy diffusivity tensor from observed and simulated Lagrangian trajectories in the Benguela Upwelling System [PDF]
Lateral mixing of unresolved processes in ocean models is usually parameterized with a scalar diffusivity, although the observed mixing can be highly anisotropic.
R. Oelerich +3 more
doaj +1 more source
Complex anisotropy beneath the Peruvian flat slab from frequency-dependent, multiple-phase shear wave splitting analysis [PDF]
Flat or shallow subduction is a relatively widespread global occurrence, but the dynamics remain poorly understood. In particular, the interaction between flat slabs and the surrounding mantle flow has yet to be studied in detail.
Long, Maureen D., Eakin, Caroline M.
core +1 more source
Background: Diffusion and diffusion tensor imaging techniques (DTI) are widely available and used both in central nervous system and body imaging, including gynecological diseases.
Özgür Kılıçkesmez +6 more
doaj +1 more source
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
Zonal-mean atmospheric dynamics of slowly-rotating terrestrial planets
The zonal-mean atmospheric flow of an idealized terrestrial planet is analyzed using both numerical simulations and zonally symmetric theories, focusing largely on the limit of low planetary rotation rate.
GK Vallis (16107686) +1 more
core +6 more sources

