TY - INPR A1 - Zakharov, Venjamin E. A1 - Meister, Claudia-Veronika T1 - Acceleration and heating in the auroral magnetosphere by current driven electrostatic ion cyclotron turbulence N2 - A numerical MHD model is developed to investigate acceleration and heating of both thermal and auroral plasma. This is done for magnetospheric flux tubes in which intensive field aligned currents flow. To give each of these tubes, the empirical Tsyganenko model of the magnetospheric field is used. The parameters of the background plasma outside the flux tube as well as the strength of the electric field of magnetospheric convection are given. Performing the numerical calculations, the distributions of the plasma densities, velocities, temperatures, parallel electric field and current, and of the coefficients of thermal conductivity are obtained in a self-consistent way. It is found that EIC turbulence develops effectively in the thermal plasma. The parallel electric field develops under the action of the anomalous resistivity. This electric field accelerates both the thermal and the auroral plasma. The thermal turbulent plasma is also subjected to an intensive heating. The increase of the plasma of the Earth's ionosphere. Besides, studying the growth and dispersion properties of oblique ion cyclotron waves excited in a drifting magnetized plasma, it is shown that under non-stationary conditions such waves may reveal the properties of bursts of polarized transverse electromagnetic waves at frequencies near the patron gyrofrequency. T3 - NLD Preprints - 59 Y1 - 2000 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-14959 ER - TY - INPR A1 - Volosevich, Alexandra A1 - Meister, Claudia-Veronika T1 - Nonlinear electrostatic ion-acoustic waves in the solar atmosphere N2 - Basing on recent solar models, the excitation of ion-acoustic turbulence in the weaklycollisional, fully and partially-ionized regions of the solar atmosphere is investigated. Within the frame of hydrodynamics, conditions are found under which the heating of the plasma by ion-acoustic type waves is more effective than the Joule heating. Taking into account wave and Joule heating effects, a nonlinear differential equation is derived, which describes the evolution of nonlinear ion-acoustic waves in the collisional plasma. T3 - NLD Preprints - 60 Y1 - 2000 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-14968 ER - TY - INPR A1 - Meister, Claudia-Veronika A1 - Dziourkevich, Natalia S. T1 - Temperature-anisotropy driven mirror waves in space plasma N2 - In this paper an analysis of the excitation conditions of mirror waves is done, which propagate parallel to an external magnetic field. There are found analytical expressions for the dispersion relations of the waves in case of different plasma conditions. These relations may be used in future to develop the nonlinear theory of mirror waves. In comparison with former analytical works, in the study the inuence of the magnetic field and nite temperatures of the ions parallel to the magnetic field are taken into account. Application is done for the earth's magnetosheath. T3 - NLD Preprints - 61 Y1 - 2000 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-14977 ER - TY - INPR A1 - Liperovsky, V. A. A1 - Meister, Claudia-Veronika A1 - Doda, L. N. A1 - Liperovskaya, E. V. A1 - Davidov, V. F. A1 - Bogdanov, V. V. T1 - On the possible influence of radon and aerosol injection on the atmosphere and ionosphere before earthquakes N2 - A model of the generation of pulses of local electric fields with characteristic time scales of 1–10 minutes is considered for atmospheric conditions above fracture regions of earthquakes. In the model, it is proposed that aerosols, increased ionization velocity and upstreaming air flows occur at night-time conditions. The pulses of local electric fields cause respective pulses of infrared emissions. But infrared emissions with time scales of 1–10 minutes were not observed up to now experimentally. The authors think, that the considered non-stationary field and radiation effects might be a new-type of applicable earthquake indicators and ask to perform special earth-based and satellite observations of the night-time atmosphere in seismoactive fracture regions. T3 - NLD Preprints - 64 Y1 - 2005 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-14995 ER - TY - INPR A1 - Liperovskaya, E. V. A1 - Meister, Claudia-Veronika A1 - Parrot, M. A1 - Bogdanov, V. V. A1 - Vasil‘eva, N. E. T1 - On Es-spread effects in the ionosphere connected to earthquakes N2 - In the present work, phenomena in the ionosphere are studied, which are connected with earthquakes (16 events) having a depth of less than 50 km and a magnitude M larger than 4. Analysed are night-time Es-spread effects using data of the vertical sounding station Petropavlovsk- Kanchatsky (φ=53.0°, λ=158.7°) from May 2004 until August 2004 registered every 15 minutes. It is found that the maximum distance of the earthquake from the sounding station, where pre-seismic phenomena are yet observable, depends on the magnitude of the earthquake. Further it is shown that 1-2 days before the earthquakes, in the premidnight hours, the appearance of Es-spread increases. The reliability of this increase amounts to 0.95. T3 - NLD Preprints - 65 Y1 - 2006 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-15003 ER - TY - INPR A1 - Liperovskaya, E. V. A1 - Parrot, M. A1 - Bogdanov, V. V. A1 - Meister, Claudia-Veronika A1 - Rodkin, M. V. A1 - Liperovsky, V. A. T1 - On long-term variations of foF2 in the mid-latitude ionosphere before strong earthquakes N2 - The statistical analysis of the variations of the dayly-mean frequency of the maximum ionospheric electron density foF2 is performed in connection with the occurrence of (more than 60) earthquakes with magnitudes M > 6.0, depths h < 80 km and distances from the vertical sounding station R < 1000 km. For the study, data of the Tokyo sounding station are used, which were registered every hour in the years 1957-1990. It is shown that, on the average, foF2 decreases before the earthquakes. One day before the shock the decrease amounts to about 5 %. The statistical reliability of this phenomenon is obtained to be better than 0.95. Further, the variations of the occurrence probability of the turbulization of the F-layer (F spread) are investigated for (more than 260) earthquakes with M > 5.5, h < 80 km, R < 1000 km. For the analysis, data of the Japanese station Akita from 1969-1990 are used, which were obtained every hour. It is found that before the earthquakes the occurrence probability of F spread decreases. In the week before the event, the decrease has values of more than 10 %. The statistical reliability of this phenomenon is also larger than 0.95. Examining the seismo-ionospheric effects, here periods of time with weak heliogeomagnetic disturbances are considered, the Wolf number is less than 100 and the index ∑ Kp is smaller than 30. T3 - NLD Preprints - 66 Y1 - 2006 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-15017 ER - TY - INPR A1 - Volosevich, Alexandra V. A1 - Meister, Claudia-Veronika T1 - Nonlinear interaction of Farley-Buneman waves N2 - The nonlinear interaction of waves excited by the modified two-stream instability (Farley-Buneman instability) is considered. It is found that, during the linear stage of wave growth, the enhanced pressure of the high-frequency part of the waves locally generates a ponderomotive force. This force acts on the plasma particles and redistributes them. Thus an additional electrostatic polarization field occurs, which influences the low-frequency part of the waves. Then, the low-frequency waves also cause a redistribution of the high-frequency waves. In the paper, a self-consistent system of equations is obtained, which describes the nonlinear interaction of the waves. It is shown that the considered mechanism of wave interaction causes a nonlinear stabilization of the high-frequency waves’ growth and a formation of local density structures of the charged particles. The density modifications of the charged particles during the non-linear stage of wave growth and the possible interval of aspect angles of the high-frequency waves are estimated. T3 - NLD Preprints - 52 Y1 - 1998 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-14851 ER - TY - INPR A1 - Runov, A. V. A1 - Pudovkin, M. I. A1 - Meister, Claudia-Veronika T1 - The dynamics of tail-like current sheets under the influence of small-scale plasma turbulence N2 - A 2D-magnetohydrodynamic model of current-sheet dynamics caused by anomalous electrical resistivity as result of small-scale plasma turbulence is proposed. The anomalous resistivity is assumed to be proportional to the square of the gradient of the magnetic pressure as may be valid for instance in the case of lower-hybrid-drift turbulence. The initial resistivity pulse is given. Then the temporal and spatial evolution of the magnetic and electric fields, plasma density, pressure, convection and resistivity are considered. The motion of the induced electric field is discussed as indicator of the plasma disturbances. The obtained results found using much improved numerical methods show a magnetic field evolution with x-line formation and plasma acceleration. Besides, in the current sheet, three types of magnetohydrodynamic waves occur, fast magnetoacoustic waves of compression and rarefaction as well as slow magnetoacoustic waves. T3 - NLD Preprints - 54 Y1 - 1999 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-14906 ER - TY - JOUR A1 - Popov, K. V. A1 - Liperovsky, Viktor A. A1 - Liperovskaya, E. V. A1 - Senchenkov, S. A. A1 - Meister, Claudia-Veronika T1 - On weekly variations of the ionospheric foF2-frequency possibly caused by anthropogenic activity Y1 - 1996 ER - TY - JOUR A1 - Liperovsky, Viktor A. A1 - Meister, Claudia-Veronika A1 - Liperovskaya, E. V. A1 - Popov, K. V. A1 - Senchenkov, S. A. T1 - Modelling of the generation of local current systems by the interaction of sporadic E-layers and acoustic waves Y1 - 1996 ER - TY - JOUR A1 - Meister, Claudia-Veronika A1 - Liperovsky, Viktor A. A1 - Popov, K. V. A1 - Senchenkov, S. A T1 - Ion-acoustic instability caused by neutral wind action on sporadic E-layers Y1 - 1996 ER - TY - JOUR A1 - Liperovsky, Viktor A. A1 - Meister, Claudia-Veronika A1 - Liperovskaya, E. V. A1 - Popov, K. V. A1 - Senchenkov, S. A. T1 - Consequences of locally enhanced electrical currents in and near sporadic E-layers Y1 - 1996 ER - TY - JOUR A1 - Liperovsky, Viktor A. A1 - Meister, Claudia-Veronika A1 - Oleynik, M. A. A1 - Popov, K. V. A1 - Oleynik, M. A. A1 - Liperovskaya, E. V. T1 - Consequences of current generation in the ionosphere caused by neutral wind action on Es-clouds Y1 - 1996 ER - TY - THES A1 - Popov, K. V. A1 - Liperovsky, Viktor A. A1 - Meister, Claudia-Veronika A1 - Liperovskaya, E. V. T1 - Anthropogenic effects with weekly periodicity in the F-region ionosphere Y1 - 1996 ER - TY - JOUR A1 - Meister, Claudia-Veronika T1 - Diffusion of electron beams in space plasma with ion-acoustic turbulence Y1 - 1995 ER - TY - JOUR A1 - Meister, Claudia-Veronika T1 - Farley-Buneman-Type waves caused by the influence of neutral winds on sporadic E-layers Y1 - 1995 ER - TY - BOOK A1 - Meister, Claudia-Veronika T1 - Stochastic forces on electrons in the solar flare plasma T3 - Preprint NLD Y1 - 1994 VL - 7 PB - Univ. CY - Potsdam ER - TY - JOUR A1 - Kubyshkin, I. V. A1 - Meister, Claudia-Veronika T1 - An attempt to introduce finite diffusion regions into magnetohydrodynamic reconnection models Y1 - 1996 ER - TY - JOUR A1 - Liperovsky, Viktor A. A1 - Meister, Claudia-Veronika A1 - Senchenkov, S. A. T1 - On an acoustic model of the generation of local Farley-Buneman turbulence in the mid-latitude ionosphere Y1 - 1996 ER - TY - JOUR A1 - Liperovsky, Viktor A. A1 - Kustov, A. V. A1 - Meister, Claudia-Veronika T1 - Some ideas concerning the problem of anomalous polar E-region heating due to Farley-Buneman turbulence Y1 - 1996 ER - TY - JOUR A1 - Liperovsky, Viktor A. A1 - Meister, Claudia-Veronika T1 - Sporadic E-layers as current generator Y1 - 1996 ER - TY - JOUR A1 - Meister, Claudia-Veronika A1 - Kubyshkin, I. V. T1 - Anomalous diffusion in solar flares with ion-acoustic turbulence Y1 - 1996 ER - TY - JOUR A1 - Meister, Claudia-Veronika T1 - Current fluctuations in the earth's magnetosphere caused by lower-hybrid-drift turbulence Y1 - 1996 ER - TY - JOUR A1 - Meister, Claudia-Veronika A1 - Kubyshkin, I. V. T1 - Diffusion tensor for a solar flare plasma with ion-acoustic turbulence Y1 - 1996 ER - TY - JOUR A1 - Meister, Claudia-Veronika A1 - Liperovsky, Viktor A. T1 - Ionospheric currents and turbulence caused by the influence of neutral winds on sporadic E-layers. Model of local currrents caused by neutral winds in weakly-ionized plasmas Y1 - 1996 ER - TY - JOUR A1 - Meister, Claudia-Veronika A1 - Liperovsky, Viktor A. A1 - Popov, K. V. T1 - Ionospheric currents and turbulence caused by the influence of neutral winds on sporadic E-layers Y1 - 1996 ER - TY - JOUR A1 - Meister, Claudia-Veronika T1 - Local current generation by the interaction of neutral winds and dense plasma clouds Y1 - 1996 ER - TY - JOUR A1 - Meister, Claudia-Veronika T1 - Modelling of stochastic forces in turbulent space plasmas Y1 - 1996 ER - TY - JOUR A1 - Meister, Claudia-Veronika A1 - Kubyshkin, I. V. T1 - Recalculation of the diffusion tensor for plasmas with ion-acoustic turbulence Y1 - 1996 ER - TY - JOUR A1 - Liperovsky, Viktor A. A1 - Popov, K. V. A1 - Senchenkov, S. A. A1 - Oleynik, M. A. A1 - Liperovskaya, E. V. A1 - Meister, Claudia-Veronika T1 - Quasi-three dimensional model of current generation in the ionosphere caused by neutral wind action on Es- clouds Y1 - 1995 ER - TY - JOUR A1 - Meister, Claudia-Veronika A1 - Schmidt, Hans-Jürgen T1 - Jahresberichte 1996 Y1 - 1997 ER - TY - JOUR A1 - Meister, Claudia-Veronika A1 - Liperovsky, Viktor A. A1 - Popov, K. V. A1 - Senchenkov, S. A. A1 - Oleynik, M. A. A1 - Liperovskaya, E. V. T1 - Quasi-three dimensional model of current generation in the ionosphere caused by neutral wind action on Es- clouds JF - Preprint NLD Y1 - 1995 VL - 21 PB - Univ. CY - Potsdam ER - TY - JOUR A1 - Liperovsky, Viktor A. A1 - Meister, Claudia-Veronika A1 - Liperovskaya, E. V. A1 - Oleynik, M. A. A1 - Popov, K. V. A1 - Senchenkov, S. A. T1 - Two-dimensional model of ionospheric sporadic E-layers as current generators Y1 - 1995 ER - TY - JOUR A1 - Popov, K. V. A1 - Liperovsky, Viktor A. A1 - Liperovskaya, E. V. A1 - Meister, Claudia-Veronika T1 - Weekly anthropogenic phenomena in the E- and F-layers of the ionosphere Y1 - 1995 ER - TY - JOUR A1 - Meister, Claudia-Veronika A1 - Liperovsky, Viktor A. A1 - Schlegel, K. A1 - Haldoupis, Ch. T1 - Currents and turbulence in and near mid-latitude sporadic e-layers caused by strong acoustic impulses JF - Preprint NLD Y1 - 1995 VL - 11 PB - Univ. CY - Potsdam ER - TY - JOUR A1 - Liperovskaya, E. V. A1 - Pochotelov, O. A. A1 - Liperovsky, Viktor A. A1 - Oleynik, M. A. A1 - Meister, Claudia-Veronika A1 - Christakis, N. T1 - A comparison of seismic and anthropogenic effects in the night-time sporadic E-layer of the ionosphere Y1 - 1994 ER - TY - JOUR A1 - Schmidt, Hans-Jürgen A1 - Baier, Frank W. A1 - Bleyer, Ulrich A1 - Hubrig, Swetlana A1 - Meister, Claudia-Veronika A1 - Schilbach, Elena A1 - Tiersch, Heinz T1 - Zum Wissenschaftler-Integrationsprogramm Y1 - 1994 ER - TY - JOUR A1 - Liperovsky, Viktor A. A1 - Meister, Claudia-Veronika A1 - Haldoupis, Ch. A1 - Schlegel, K. T1 - Electrical currents and Farley-Buneman turbulence in mid-latitude sporadic E-layers Y1 - 1994 ER - TY - JOUR A1 - Liperovsky, Viktor A. A1 - Pochotelov, O. A. A1 - Liperovskaya, E. V. A1 - Parrot, M. A1 - Meister, Claudia-Veronika A1 - Alimov, O. A. T1 - Modifications of sporadic E-layers caused by seismic activity JF - Preprint NLD Y1 - 1998 SN - 1432-2935 VL - 49 PB - Univ. CY - Potsdam ER - TY - BOOK A1 - Volosevich, A. V. A1 - Meister, Claudia-Veronika T1 - Nonlinear interaction of Farley-Buneman waves T3 - Preprint NLD Y1 - 1998 SN - 1432-2935 VL - 52 PB - Univ. CY - Potsdam ER - TY - JOUR A1 - Liperovsky, Viktor A. A1 - Meister, Claudia-Veronika T1 - Ionosphärische sporadische E-Schichten mittlerer Breiten als Stromgenerator Y1 - 1994 ER - TY - JOUR A1 - Meister, Claudia-Veronika T1 - Langevin equation for turbulent plasmas near regions of magnetic reconnection Y1 - 1994 ER - TY - JOUR A1 - Meister, Claudia-Veronika T1 - Stochastic forces in plasmas with magnetized particles Y1 - 1994 ER - TY - JOUR A1 - Meister, Claudia-Veronika T1 - Stromfluktuationen in kosmischen Plasmen mit Dichtegradienten Y1 - 1994 ER - TY - BOOK A1 - Liperovskij, Viktor A. A1 - Meister, Claudia-Veronika T1 - Sporadic e-layers as current generator : two-dimensional model T3 - Preprint NLD Y1 - 1995 VL - 20 PB - Univ. CY - Potsdam ER - TY - BOOK A1 - Meister, Claudia-Veronika A1 - Kubyshkin, I. V. T1 - Recalculation of the diffusion tensor for plasmas with ion-acoustic turbulence T3 - Preprint NLD Y1 - 1995 VL - 26 PB - Univ. CY - Potsdam ER - TY - BOOK A1 - Meister, Claudia-Veronika T1 - Stochastic forces in space plasmas with ion-acoustic and lower-hybrid-drift turbulence T3 - Preprint NLD Y1 - 1995 VL - 10 PB - Univ. CY - Potsdam ER - TY - JOUR A1 - Meister, Claudia-Veronika T1 - Stochastic forces in space plasmas with ion-acoustic and lower-hybrid-drift turbulence Y1 - 1995 ER - TY - JOUR A1 - Liperovsky, Viktor A. A1 - Meister, Claudia-Veronika T1 - Influence of collisional heating on the current generation in moving mid-latitude sporadic E-layers Y1 - 1995 ER - TY - JOUR A1 - Liperovsky, Viktor A. A1 - Meister, Claudia-Veronika T1 - Influence of collisional heating on the current generation in moving mid-latitude sporadic E-layers Y1 - 1995 ER - TY - THES A1 - Meister, Claudia-Veronika T1 - Zur physikalischen Theorie für Plasmen im Nichtgleichgewicht Y1 - 1995 ER - TY - JOUR A1 - Meister, Claudia-Veronika A1 - Kubyshkin, I. V. T1 - Diffusion of electron currents by ion-acoustic turbulence driven by the current itself Y1 - 1995 ER - TY - JOUR A1 - Meister, Claudia-Veronika A1 - Liperovsky, Viktor A. T1 - Midlatitude sporadic E-layers as current generators : two-dimensional model Y1 - 1995 ER - TY - JOUR A1 - Meister, Claudia-Veronika T1 - Modelling of stochastic forces in turbulent space plasmas Y1 - 1995 ER - TY - JOUR A1 - Meister, Claudia-Veronika T1 - Recalculation of the quasi-linear collision integral for plasmas with ion-acoustic turbulence. Analytical approximation Y1 - 1995 ER - TY - JOUR A1 - Meister, Claudia-Veronika T1 - Stochastic forces in space plasmas with ion-acoustic and lower-hybrid-drift turbulence Y1 - 1995 ER - TY - JOUR A1 - Meister, Claudia-Veronika T1 - Wave forces on electrons in plasmas with ion-acoustic and lower-hybrid-drift turbulence Y1 - 1995 ER - TY - JOUR A1 - Meister, Claudia-Veronika T1 - Wave forces on electrons in turbulent solar flare plasmas Y1 - 1995 ER - TY - JOUR A1 - Meister, Claudia-Veronika T1 - Cross, R., An introduction to Alfven waves; Bristol [u.a.], Hilger, 1988 BT - An introduction to Alfven waves Y1 - 1995 ER - TY - JOUR A1 - Meister, Claudia-Veronika T1 - Kippenhahn, R., Discovering the secrets of the sun ; Chichester [u.a.] : Willey, 1994 Y1 - 1995 ER -