• Media type: E-Article
  • Title: Large‐scale structure of the fast solar wind
  • Contributor: Bisi, M. M.; Fallows, R. A.; Breen, A. R.; Rifai Habbal, S.; Jones, R. A.
  • imprint: American Geophysical Union (AGU), 2007
  • Published in: Journal of Geophysical Research: Space Physics
  • Language: English
  • DOI: 10.1029/2006ja012166
  • ISSN: 0148-0227
  • Keywords: Paleontology ; Space and Planetary Science ; Earth and Planetary Sciences (miscellaneous) ; Atmospheric Science ; Earth-Surface Processes ; Geochemistry and Petrology ; Soil Science ; Water Science and Technology ; Ecology ; Aquatic Science ; Forestry ; Oceanography ; Geophysics
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  • Description: <jats:p>We present the results of a comprehensive study of the fast solar wind near solar minimum conditions using interplanetary scintillation (IPS) data taken with the EISCAT system in northern Scandinavia, and a recent extremely long baseline observation using both EISCAT and MERLIN systems. The results from IPS observations suggest that the fast wind inside 100 solar radii (R<jats:sub>⊙</jats:sub>) can be represented by a two‐mode model in some cases but this distinction is much less clear by in situ distances beyond 1 astronomical unit (215 R<jats:sub>⊙</jats:sub>). Two distinct fast streams are seen in the extremely long baseline IPS observation; comparison of the IPS line of sight with a synoptic map of white light indicates the faster mode overlies the polar crown and the slower fast mode overlies an equatorial extension of the polar coronal hole.</jats:p>
  • Access State: Open Access