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High-latitude ionospheric winds related to solar-interplanetary conditionsTreated jointly, two recent results imply that the distribution of winds in the polar ionosphere should change as a function of the direction of the interplanetary magnetic field. From the motions of chemically released ion and neutral clouds, it is apparent that neutral winds in the high-latitude ionosphere are driven principally by ion drag forces. OGO 6 electric field measurements demonstrate that there are definite relationships between the time/latitude distribution of ionospheric plasma convection and interplanetary magnetic field parameters, and also that the distribution is most sensitive to the azimuthal angle of the inter planetary field. Although direct neutral wind to interplanetary magnetic field comparisons are not available, logic clearly implies a close relationship. Observations of infrasonic waves following sudden ionization enhancements indicate the existence of momentum transfer.
Document ID
Document Type
Conference Paper
Heppner, J. P.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1975
Publication Information
Publication: Possible Relationships between Solar Activity and Meteorol. Phenomena
Subject Category
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
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