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Comparison of 74-MHz interplanetary scintillation and IMP 7 observations of the solar wind during 1973Solar wind velocities measured by earth-orbiting spacecraft are compared with velocities determined from interplanetary scintillation (IPS) observations for 1973, a period when high-velocity streams were prevalent. The spacecraft and IPS velocities agree well in the mean and are highly correlated. No simple model for the distribution of enhanced turbulence within streams is sufficient to explain the velocity comparison results for the entire year. Although a simple proportionality between density fluctuation level and bulk density is consistent with IPS velocities for some periods, some streams appear to have enhanced turbulence in the high-velocity region, where the density is low.
Document ID
19780061297
Document Type
Reprint (Version printed in journal)
Authors
Coles, W. A. (California Univ. La Jolla, CA, United States)
Harmon, J. K. (California, University La Jolla, Calif., United States)
Lazarus, A. J. (California Univ. La Jolla, CA, United States)
Sullivan, J. D. (MIT Cambridge, Mass., United States)
Date Acquired
August 9, 2013
Publication Date
July 1, 1978
Publication Information
Publication: Journal of Geophysical Research
Volume: 83
Subject Category
SOLAR PHYSICS
Funding Number(s)
CONTRACT_GRANT: NSF ATM-75-13451
CONTRACT_GRANT: NAS5-11062
CONTRACT_GRANT: NSF GA-20591
CONTRACT_GRANT: NGL-22-009-015
Distribution Limits
Public
Copyright
Other