Accession Number:

ADA188328

Title:

Low-Energy Plasma Flows in the CDAW Substorm on 22 March 1979.

Descriptive Note:

Progress rept.,

Corporate Author:

IOWA UNIV IOWA CITY DEPT OF PHYSICS AND ASTRONOMY

Personal Author(s):

• Huang, C. Y.
• Frank, L. A.
• Eastman, T. E.

Report Date:

1986-10-01

Pagination or Media Count:

27.0

Abstract:

The substorm which occurs on 22 March 1979 offers a particularly clear example of isolated activity. At the onset at 1054 UT and subsequently, both ISEE spacecraft are located close to both the midplane of the tail and local midnight. Plasma sheet thinning occurs prior to onset, and at onset strong plasma flows are observed at both ISEE spacecraft. The net flow direction is initially tailward, although there are persistent slow flows directed earthward. Some time later there are strong flows earthward, coincident with plasma sheet recovery. This study focuses on the three dimensional velocity distributions measured on ISEE 1, in particular the low energy plasma population which coexists with the energetic streaming plasma. Keywords Magnetic storms.

Descriptors:

• *MAGNETIC STORMS
• *PLASMAS(PHYSICS)
• DISTRIBUTION
• ENERGETIC PROPERTIES
• FLOW
• ISOLATION
• LOW ENERGY
• PLASMAS(PHYSICS)
• POPULATION
• RECOVERY
• SHEETS
• SPACECRAFT
• THREE DIMENSIONAL
• VELOCITY

Subject Categories:

• Atmospheric Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE