Výsledky vyhledávání - "Živkovic, Tatjana"

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Evidence of small-scale field aligned current sheets from the low and middle altitude cusp continuing in the ionosphere

Autor: Zivkovic, Tatjana, Buchert, Stephan, Opgenoorth, Hermann, Ritter, Patricia, Luehr, Hermann

We investigate kilometer-scale field-aligned currents that were detected both in the magnetospheric cusp at a few Earth radii altitude and in the ionosphere by satellites that were, according to the Tsyganenko model, within a few tens of kilometers a

Externí odkaz: http://arxiv.org/abs/1209.6564

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ENSO dynamics: low-dimensional-chaotic or stochastic?

Autor: Zivkovic, Tatjana, Rypdal, Kristoffer

We apply a test for low-dimensional, deterministic dynamics to the Nino 3 time series for the El Nino Southern Oscillation (ENSO). The test is negative, indicating that the dynamics is high-dimensional/stochastic. However, application of stochastic f

Externí odkaz: http://arxiv.org/abs/1206.5657

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Organization of the magnetosphere during substorms

Autor: Zivkovic, Tatjana, Rypdal, Kristoffer

The change in degree of organization of the magnetosphere during substorms is investigated by analyzing various geomagnetic indices, as well as interplanetary magnetic field z-component and solar wind flow speed. We conclude that the magnetosphere se

Externí odkaz: http://arxiv.org/abs/1105.5005

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Low-dimensionality and predictability of solar wind and global magnetosphere during magnetic storms

Autor: Zivkovic, Tatjana, Rypdal, Kristoffer

The storm index SYM-H, the solar wind velocity v, and interplanetary magnetic field Bz show no signatures of low-dimensional dynamics in quiet periods, but tests for determinism in the time series indicate that SYM-H exhibits a significant low-dimens

Externí odkaz: http://arxiv.org/abs/1105.4763

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Evidence of low-dimensional chaos in magnetized plasma turbulence

Autor: Zivkovic, Tatjana, Rypdal, Kristoffer

We analyze probe data obtained from a toroidal magnetized plasma configuration suitable for studies of low-frequency gradient-driven instabilities. These instabilities give rise to field-aligned convection rolls analogous to Rayleigh-Benard cells in

Externí odkaz: http://arxiv.org/abs/0801.3151

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