Zonal flow
Rossby wave, drift wave and zonal flow turbulence
... as zonal flows and vortices with the weak waves ...- zonal flow turbulence are typical of the coexistence of two distinctly different spatial and time ...the zonal flows in the ...discussing ...
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Observation of Zonal Flow Type Oscillation in Linear Cylindrical ECR Plasmas
... of zonal flows in a magnetically confined toroidal plasma device, compact helical system (CHS), using dual heavy ion beam probes [4, ...on zonal flows have been reported using various diagnostics ...wave- ...
5
Zonal flow generation through four wave interaction in reduced models of fusion plasma turbulence
... A four-wave truncated model is developed for the Extended-Hasegawa-Mima (EHM) equation. This produces a set of four ordinary differential equations (ODEs) that are used to investigate the modulational instability (MI), a ...
191
Zonal Flow Generation in Toroidally Confined Plasmasthrough Modulational Instability of Drift Waves
... Although physically an approximation, the MHM equations are treated as exact equations and analysed to derive NLS both heuristically and formally, using the method of multiple-scale perturbation analysis. Both heuristic ...
112
Turbulence Simulation on Zonal Flow Formations in the Presence of Parallel Flows
... the zonal flow formation by the drift waves in the presence of parallel flows by us- ing the turbulence ...The flow coupling process via turbulence is focused on by considering the cylindrical plasma ...
7
Generation of Zonal Flow and Magnetic Field by Planetary Waves in the Earth’s Ionosphere
... sheared zonal flows are created by the nonhomogeneous heating of the atmospheric layers by solar ...sheared zonal flow. Namely the excitation of zonal flow based on the triple planetary ...
5
Influence of solar variability on the occurrence of central European weather types from 1763 to 2009
... The mesoscale circulation variations can explain the changes in the frequency of occurrence of the E and W weather patterns over central Europe. A weaker zonal flow as seen in Fig. 4 leads to a reduction of ...
14
Structure Formation in Turbulent Plasmas
... Zonal flow in toroidal plasmas is, as a zero-th order description, constant flow on magnetic surface, indepen- dent of poloidal and toroidal angles, with its sign oscillat- ing as the radius is ...
12
Nonperturbative Mean-Field Theory for Minimum Enstrophy Relaxation
... transport–i.e., zonal flow formation–is a common feature of both geostrophic fluids and magnetically confined plasmas ...the flow in the end state; however, it gives no insight into the all-important ...
14
Intrinsic Rotation of a Magnetic Island with Finite Width
... is the Alfv´en velocity [5, 6]. When the island propagates toward the electron (ion) diamagnetic drift, the sign of the polarization term is positive (negative). Therefore, deter- minating the propagation direction of ...
6
A Review -Observations of Turbulence and Structure in Magnetized Plasmas
... have been found in the fluctuation spectra of a number of toroidal plasmas [74], such as the JIPPT-IIU [75], JFT- 2M [76,77], ASDEX-U [78,79] T-10 [80], DIII-D [81–83], TEXT-U [84] and CHS [85], after GAMs were ...
24
Low-frequency variability in idealised GCM experiments with circumpolar and localised storm tracks
... the zonal mean flow which was unexpected in an at- mospheric ...The zonal mean zonal flow configuration is described by the first two Empirical Orthogonal Functions (EOFs, ...
13
Zonal Jets in Rotating Shallow Water Turbulence
... a zonal flow emerged from small-scale ...forced flow was dominated by vortices so no zonal pat- tern was ...a zonal flow pattern performing time ...azimuthal flow: a ...
8
Derivation of the Nonlinear Schrödinger Equation by The Derivative Perturbation Expansion Method
... Abstract— The Zonal flow is an important phenomenon in the physics of plasma fusion. Due to its shearing property, it suppresses turbulence in plasma and thus enhance its confinement. This enhancement in ...
5
An Algebra for Modeling and Simulation of Continuous Spatial Changes
... In this context, this work proposes and evaluates through case studies an algebra for the development of spatially explicit models of continuous changes that take place in the geographic space. This algebra extends the ...
16
The baroclinic instability of the zonal winds to short waves
... ii SUMMARY THE BAROCLINIC INSTABILITY of the ZONAL WINDS to SHORT WAVES This thesis deals with the asymptotic solution of the equations describing a simple harmonic, travelling- wave dis[r] ...
34
Original Article Extracellular matrix characteristics of co-cultured zonal chondrocytes and bone marrow mesenchymal stem cells
... of zonal chondro- cytes and BMSCs has not been ...of zonal cartilage to BMSCs in an indi- rect culture system ...that zonal cartilage may inter- act in different manners with ...
12
The observational signature of modelled torsional waves and comparison to geomagnetic jerks
... the flow at the top of the core. Assuming the axisymmetric zonal flows were asso- ciated with torsional waves, the flow field inside the core was also inferred, and the angular momentum of the ...
16
Validation of the Aura High Resolution Dynamics Limb Sounder geopotential heights
... data zonal Fourier coefficient data files, created by applying a Kalman filter mapping algorithm similar to that described by Rodgers (2000), Kohri (1981), and Remsberg et ...the zonal mean and coefficients ...
11
On the variability of the semidiurnal solar and lunar tides of the equatorial electrojet during sudden stratospheric warmings
... the zonal mean zonal wind at 60 ◦ N and 10 hPa, and a second enhancement a few days after the peak reversal of the zonal mean zonal wind during all four ...and zonal wind obtained from ...
18