Concerning flux erosion from the dayside magnetosphere

Journal Article · Fri Jul 01 04:00:00 EDT 1994 · Journal of Geophysical Research

DOI:https://doi.org/10.1029/94JA00719· OSTI ID:68405

Tsyganenko, N A ^[1]; Sibeck, D G ^[2]

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1. NASA Goddard Space Flight Center, Greenbelt, MD (United States)
2. Johns Hopkins Univ., Laurel, MD (United States)

The dayside magnetopause moves inward during periods of southward interplanetary magnetic field in response to decreases in the outer magnetospheric magnetic field strength. The authors consider possible causes for the magnetic field strength decreases and demonstrate that they are consistent with increases in the region 1 Birkeland and cross-tail currents. They reexamine the well-known series of magnetopause crossings by OGO 5 on March 27, 1968, to demonstrate that they provide evidence for two intervals of gradual inward magnetopause motion associated with magnetic flux erosion and also for two intervals of inward magnetopause motion associated with sharp increases in the solar wind dynamic pressure. 54 refs., 12 figs., 1 tab.

• Sponsoring Organization: USDOE
• OSTI ID: 68405
• Journal Information: Journal of Geophysical Research, Journal Name: Journal of Geophysical Research Journal Issue: A7 Vol. 99; ISSN JGREA2; ISSN 0148-0227
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
DYNAMIC LOADS
EARTH MAGNETOSPHERE
INTERPLANETARY MAGNETIC FIELDS
MAGNETIC FIELDS
MAGNETIC FLUX
MAGNETOPAUSE
MOTION
SOLAR WIND
VARIATIONS