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Analysis of the bi-modal nature of solar wind-magnetosphere coupling

Description: It has been shown that the optimal linear prediction filter relating the solar wind electric field and the geomagnetic activity, as measured by the AL index, is both bi-modal and dependent on the level of activity in the magnetosphere. Further studies truncated the prediction filter to a five parameter model containing two low-pass filtered delta functions of arbitrary amplitude and delay time. The present study elaborates on the nature of the bi-modal response by using the five parameter model… more
Date: May 1, 1997
Creator: Smith, J. P. & Horton, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The effects of coronal mass ejection on galactic cosmic rays in the high latitude heliosphere: Observations from Ulysses` first orbit

Description: During its first solar orbit the Ulysses spacecraft detected several coronal mass ejections (CMEs) at high heliographic latitudes. The authors present first observations on the effects of these high latitude CMEs on galactic cosmic rays (GCRs) using measurements from the Kiel Electron Telescope (KET) which is part of the Cosmic Ray and Solar Particle Investigation (COSPIN) experiment, the Los Alamos SWOOPS (Solar Wind Observations Over the Poles of the Sun) experiment and the magnetic field exp… more
Date: October 1997
Creator: Bothmer, V.; Heber, B.; Kunow, H.; Mueller-Mellin, R.; Wibberenz, G.; Gosling, J. T. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Structure and evolution of the current sheet by multi-spacecraft observations

Description: On April 22, 1979, from 0840 to 1018 UT, ISEE 1, ISEE 2 and IMP 8 were all in or near the magnetotail current sheet at 17 Re, 16 Re and 35 Re respectively while ISEE 3 monitored the solar wind 206 Re upstream of the Earth. A global perspective of the four spacecraft observations and of the ground magnetic records is presented in this paper. The hyperbolic tangent current sheet model of Harris has been used to calculate the current sheet thickness and to analyze the plasma distribution in the ve… more
Date: December 31, 1997
Creator: Zhou, X.-Y.; Russell, C. T. & Gosling, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Transport processes in space plasmas

Description: This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The project represents a comprehensive research effort to study plasma and field transport processes relevant for solar-terrestrial interaction, involving the solar wind and imbedded magnetic field and plasma structures, the bow shock of the Earth`s magnetosphere and associated waves, the Earth`s magnetopause with imbedded flux rope structures and t… more
Date: August 1, 1997
Creator: Birn, J.; Elphic, R. C. & Feldman, W. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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