Dawn-dusk gradient of the precipitation of low-energy electrons over the polar cap and its relation to the interplanetary magnetic field

Journal Article · Mon Oct 31 23:00:00 EST 1977 · J. Geophys. Res.; (United States)

DOI:https://doi.org/10.1029/JA082i032p05271· OSTI ID:5280962

Meng, C; Akasofu, S; Anderson, K A

We report a clear indication of (1) the existence of the dawn-dusk gradient of the intensity distribution of low-energy electrons over the northern and southern polar caps, (2) the reversal of the gradient over the two polar caps, and (3) the dependence of the direction of the gradient on the interplanetary magnetic field B/sub y/ component. These features have a striking similarity with the distribution of the magnitude of the dawn-dusk component of the electric field in the polar cap.

• Research Organization: Space Sciences Laboratory, University of California, Berkeley, California 94720
• OSTI ID: 5280962
• Journal Information: J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 82:32; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ASYMMETRY
CHARGED-PARTICLE PRECIPITATION
EARTH ATMOSPHERE
ELECTRON PRECIPITATION
ENERGY RANGE
EV RANGE
INTERPLANETARY MAGNETIC FIELDS
IONOSPHERE
MAGNETIC FIELDS
NORTH-SOUTH ASYMMETRY
POLAR REGIONS