Search Results - "Spjeldvik, W.N"

Bidecadal cycles in liquid precipitations in Brazil by Gusev, A.A, Martin, I.M, Mello, M.G.S, Pankov, V, Pugacheva, G, Schuch, N.G, Spjeldvik, W.N

“…Data on liquid precipitation in Brazil for three meteorological stations in Pelotas, Campinas, and Fortaleza from 1849 up to 2000 were considered. The stations…”
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Cusp confinement zones on quiet and disturbed dayside magnetosphere by Gusev, A.A., Jayanthi, U.B., Pugacheva, G.I., Schuch, N.J., Martin, I.M., Spjeldvik, W.N.

“…The possibility of the charged particle confinement in the dayside regions of magnetosphere cusps is investigated. The analysis, on the basis of Tsyganenko…”
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Energetic ion observations of the Earth’s magnetic cusps during an extended geomagnetically quiescent period in April 2001 using detectors on S/C ISTP/Polar by Spjeldvik, W.N., Fritz, T.A., Chen, J., Zong, Q.-G.

“…We present a method of polar cusp identification using high charge state heavy ions. There is reason to think that these ions would constitute shocked solar…”
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Antiprotons confined in the earth’s inner magnetosphere by Pugacheva, G, Gusev, A.A, Jayanthi, U.B, Schuch, N.J, Spjeldvik, W.N, Choque, K.T

“…The possible existence of noticeable fluxes of antiparticles in the Earth magnetosphere is considered theoretically in this article. These antiparticles…”
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Modeling the after-effects of a heliospheric traveling shock wave through the Earth's radiation belts by Spjeldvik, W.N.

“…It is known that interplanetary traveling shock waves can strongly disturb the Earth's magnetosphere (e.g., Blake et al., 1992; Reeves, 1996). In recent years,…”
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Transient effects of solar energetic particle flux enhancements on the inner magnetosphere of the earth by Spjeldvik, W.N.

“…In one type of space weather, the sun emits intermittent enhancements of solar energetic particle (SEP) fluxes. A fraction of these fluxes that reach the…”
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Ring current ion motion in the disturbed magnetosphere with non-equipotential magnetic field lines by Pugacheva, G.I, Jayanthi, U.B, Schuch, N.G, Gusev, A.A, Spjeldvik, W.N

“…Transport of ring current ions during the main phase of the geomagnetic storm is modeled. Particle trajectories are simulated by the Lorentz equation for…”
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Trapped antiprotons produced by cosmic rays in the Earth's magnetosphere by Pugacheva, G., Gusev, A.A., Jayanthi, U.B., Schuch, N.G., Spjeldvik, W.N., Choque, K.T.

“…The existence of significant fluxes of antiparticles in the Earth magnetosphere has been predicted on theoretical considerations in this article. These…”
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Towards statistical and empirical models of the distribution of VLF waves at high latitude from the observations of the viking spacecraft by Darrouzet, F., Spjeldvik, W.N., Lemaire, J.F., Gustafsson, G., Hann, C., Dyck, C.

“…It is of considerable interest to compile a model of the low frequency electromagnetic wave intensity across the polar caps, in and around the auroral zones,…”
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Antiparticles and light element isotope ions in the earth's magnetosphere by Pugacheva, G.I., Gusev, A.A., Jayanthi, U., Martin, I.M., Spjeldvik, W.N.

“…The ratio of positron/electron fluxes originating in nuclear reactions in the Earth's Magnetosphere is considered. It is supposed that positrons as well as…”
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Source of magnetospheric antiparticles: Nuclear reactions in rarefied atmospheres by Gusev, A.A, Jayanthi, U.B, Martin, I.M, Pugacheva, G.I, Spjeldvik, W.N

“…The ratio of positron/electron fluxes originated in nuclear reactions in the Earth's magnetosphere is considered. It is supposed that positrons as well as…”
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Numerical modeling of stably and transiently confined energetic heavy ion radiation in the Earth's magnetosphere by Spjeldvik, W.N.

“…The Earth's radiation belts contain substantial fluxes of electrons and ions of hydrogen, helium, carbon, nitrogen, oxygen, silicon, iron and other ion…”
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FEM code simulation of the magnetospheric proton fluxes by Pugacheva, G.I., Gusev, A.A., Jayanthi, U.B., Martin, I.M., Spjeldvik, W.N.

“…We report a study of the numeric solution to the diffusive transport equation for energetic protons magnetically trapped in the Earth's equatorial…”
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Transport modeling of energetic electrons in the inner magnetosphere with synchrotron energy losses by Pugacheva, G.I., Boscher, D.M., Gusev, A.A., Martin, I.M., Spjeldvik, W.N.

“…The resulting L-distributions and energy spectra of energetic magnetospheric electrons obtained from numerical solution of the radiation belt transport…”
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Spatial and temporal variations of energetic trapped helium ions measured with Japanese satellite OHZORA by Pugacheva, G.I., Gusev, A.A., Kohno, T., Martin, I.M., Spjeldvik, W.N.

“…The results of measurements of absolute flux values and long term temporal evolution of the spatial distribution of trapped He ions in the energy range 1.2 –…”
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On synchrotron radiation energy losses of trapped magnetospheric electrons by Pugacheva, G.I., Boscher, D.M., Gusev, A.A., Martin, I.M., Spjeldvik, W.N.

“…Using an energy balance equation it is explicitly demonstrated that synchrotron radiation (SR) significantly decelerates several MeV electrons confined on…”
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Dynamics of the low altitude secondary proton radiation belt by Gusev, A.A., Kohno, T., Spjeldvik, W.N., Martin, I.M., Pugacheva, G.I., Turtelli, A.

“…At the interface between the upper atmosphere and the radiation belt region, there exists a secondary radiation belt consisting mainly of energetic ions that…”
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The 3–9 MeV/nucleon He ion flux dynamics in the inner magnetosphere obtained with OHZORA satellite by Gusev, A.A, Kohno, T, Spjeldvik, W.N, Martin, I.M, Pugacheva, G.I, Turtelli, A

“…Results of in-situ measurements of the absolute values and long term temporal evolution of the spatial distribution of trapped He ion fluxes with energies in…”
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On the chaos and stability problem in the trapping of anomalous cosmic ray heavy ions by the Earth's magnetosphere by Pugacheva, G.I., Gusev, A.A., Martin, I.M., Spjeldvik, W.N., Turtelli, A.

“…Ions of nitrogen, oxygen and neon have been observed in detectable quantities in the Earth's inner radiation zone between L-shells of 1.2 and 2.4. Russian and…”
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Magnetic local time survey of radiation belt helium ion structure conducted with data from the polar cammice / hit instrument by Spjeldvik, W.N., Fritz, T.A., Sheldon, R.B., Chen, J.

“…A study of geomagnetically confined helium ions in the range 0.52–8.2 MeV ion kinetic energy was made with the CAMMICE Heavy Ion Telescope (HIT) during…”
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