Cusp displacement at the magnetopause for large IMF Y component

Journal Article · Tue Dec 01 04:00:00 EST 1987 · Journal of Geophysical Research; (United States)

DOI:https://doi.org/10.1029/JA092iA12p13467· OSTI ID:5940236

Crooker, N U; Berchem, J; Russell, C T ^[1]

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1. Univ. of California, Los Angeles (United States)

The magnetic field orientation just earthward of the dayside magnetopause from 95 ISEE and 11 HEOS crossings with {vert bar}B{sub y}{vert bar} > {vert bar}B{sub z}{vert bar} in the adjacent magnetosheath indicate a statistically significant {approximately}1 R{sub E} shift of the cusps toward dawn (dusk) in the northern hemisphere and dusk (dawn) in the southern hemisphere for positive (negative) B{sub y}. This small shift near the magnetopause and the contrasting large shifts of some reported ionospheric cusp signatures are explained in terms of a finite thickness magnetopause model through which the cusps shift gradually from the inner to the outer edge.

• OSTI ID: 5940236
• Journal Information: Journal of Geophysical Research; (United States), Journal Name: Journal of Geophysical Research; (United States) Vol. 92:A12; ISSN 0148-0227; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

661320* -- Auroral
Ionospheric
& Magnetospheric Phenomena-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COORDINATES
EARTH ATMOSPHERE
EARTH PLANET
INTERPLANETARY MAGNETIC FIELDS
IONOSPHERE
MAGNETIC FIELDS
MAGNETOPAUSE
MAGNETOSHEATH
MATHEMATICAL MODELS
NORTHERN HEMISPHERE
ORIENTATION
PLANETARY IONOSPHERES
PLANETS
POLAR CUSP
SOUTHERN HEMISPHERE