The E-region Rocket/Radar Instability Study (ERRRIS) - Scientific objectives and campaign overview

Details The E-region Rocket/Radar Instability Study (ERRRIS) - Scientific objectives and campaign overview The E-region Rocket/Radar Instability Study (ERRRIS) - Scientific objectives and campaign overview

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jatp...54..779p&link_type=abstract

(E-region irregularities; Selected Papers from the 23rd URSI General Assembly, Prague, Czechoslovakia, Aug. 28-Sept. 5, 1990. A9

Computer Science

Sound

16

Auroral Zones, E Region, Free Energy, Magnetohydrodynamic Stability, Rocket Sounding, Auroral Electrojets, Backscattering, Eiscat Radar System (Europe), General Overviews, Incoherent Scatter Radar, Plasma Drift, Rocket-Borne Instruments

Scientific paper

The plasma instabilities in the low-attitude auroral ionosphere and the sources of free energy that drive these waves have been examined in detail in the framework of the ERRRIS project. Independent sets of experiments were carried out on board three NASA sounding rockets which were flown in conjunction with radar backscatter measurements from Esrange, Sweden, in 1988 and 1989. The backscatter measurements were taken by the 50 MHz CUPRI system for determining the launch conditions. The Eiscat incoherent scatter radar was used to take plasma drift, density, and temperature measurements on board two of the flown rockets. STARE observations of 1 m backscatter echoes were also made. The STARE velocity fields were in agreement with the Eiscat and in situ measured electric fields. Both CUPRI and STARE observed a very dynamic and changing auroral ionosphere over Esrange. It is concluded that the ERRRIS experiments provided valuable data on plasma instabilities in the auroral electrojet, including detailed in situ measurements of the two-stream wave spectrum and phase velocities.

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