Solar cycle effects in intervals of pulsations of diminishing periods pulsation activity

Journal Article · Wed Jun 01 04:00:00 EDT 1988 · J. Geophys. Res.; (United States)

DOI:https://doi.org/10.1029/JA093iA06p05937· OSTI ID:7124992

Maltseva, N; Kangas, J; Pikkarainen, T; Olson, J V

We report that intervals of pulsations of diminishing periods (IPDP) type plasma events which are associated with magnetospheric substorms are less frequent in the years of high solar acitivity than in years of low activity. This new result is based on two independent continuous data sets from 1974 to 1985. We show also that IPDP events occur throughout the recurrent magnetic storms in 1976, whereas they appear more sporadically in 1980, i.e., during high solar activity. It is concluded that several factors such as changes in plasmapause position, attenuation of horizontal ionospheric wave propagation, and heavy ion densities in the magnetosphere can contribute to the observed long-term variability. copyright American Geophysical Union 1988

• Research Organization: Institute of the Physics of the Earth, Moscow, USSR
• OSTI ID: 7124992
• Journal Information: J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 93:A6; 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
EARTH ATMOSPHERE
EARTH MAGNETOSPHERE
ION DENSITY
IONOSPHERIC EFFECTS
MAGNETIC STORMS
PLASMA WAVES
PLASMAPAUSE
PULSATIONS
SOLAR ACTIVITY
SOLAR CYCLE
WAVE PROPAGATION