Reversal of the cosmic ray density gradient perpendicular to the ecliptic plane

Journal Article · Mon Mar 01 04:00:00 EST 1982 · J. Geophys. Res.; (United States)

DOI:https://doi.org/10.1029/JA087iA03p01685· OSTI ID:6864647

Swinson, D B; Kananen, H

Annual averages of the diurnal variation in cosmic ray intensity from neutron monitors in Deep River and Oulu and underground muon telescopes in Bolivia and at Embudo and Socorro, New Mexico, have been determined as a function of the sense of the interplantary magnetic field for the years 1965--1975. These data point to a cosmic ray density gradient, perpendicular to the ecliptic plane, pointing southward prior to 1969 and changing to a northward pointing gradient after the reversal of the sun's polar magnetic field in 1969--1971. This result supports numerical calculations for the prereversal and postreversal field configurations at intermediate and high cosmic ray rigidities.

• Research Organization: Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131
• OSTI ID: 6864647
• Journal Information: J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 87:A3; ISSN JGREA
• Country of Publication: United States
• Language: English

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71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BARYONS
COSMIC MUONS
COSMIC NEUTRONS
COSMIC RADIATION
COSMIC RAY PROPAGATION
DAILY VARIATIONS
ELEMENTARY PARTICLES
FERMIONS
GEOGRAPHICAL VARIATIONS
HADRONS
INTERPLANETARY MAGNETIC FIELDS
IONIZING RADIATIONS
LATITUDE EFFECT
LEPTONS
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FIELDS
MUONS
NEUTRONS
NUCLEONS
RADIATIONS
SOLAR CYCLE
VARIATIONS