Three-Dimensional Electric Field Measurements at the Plasma Sheet Boundary as measured by the Electron Drift Instrument (EDI) and the Electric Field and Waves Instrument ( EFW ) on the CLUSTER Spacecraft

Details Three-Dimensional Electric Field Measurements at the Plasma Sheet Boundary as measured by the Electron Drift Instrument (EDI) and the Electric Field and Waves Instrument ( EFW ) on the CLUSTER Spacecraft Three-Dimensional Electric Field Measurements at the Plasma Sheet Boundary as measured by the Electron Drift Instrument (EDI) and the Electric Field and Waves Instrument ( EFW ) on the CLUSTER Spacecraft

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsm21b..04t&link_type=abstract

American Geophysical Union, Fall Meeting 2001, abstract #SM21B-04

Physics

2704 Auroral Phenomena (2407), 2764 Plasma Sheet, 2772 Plasma Waves And Instabilities

Scientific paper

On CLUSTER, three dimensional electric fields, including the component parallel to B, can be measured by combining the information from the double-probe (EFW) , and those of the Electron Drift Instrument (EDI). EFW measures the potential difference between spherical probes spinning in a plane, and computes the two components of the field in that spin plane. EDI measures the drift-step vector, which is the displacement of electron orbits after one gyro-period, and computes the two components of the field in the plane perpendicular to the magnetic field. Comparison of the field along the axis which is common to these two planes, shows very good agreement in many plasma regions. We will show data from the night-time plasma sheet where large fields are sometimes observed near the boundaries and particle populations make rapid changes. These fields show a complex spatial and temporal structure that appears to be neither constant in time nor space.

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