Equatorwards Expansion of Unperturbed, High-Latitude Fast Solar Wind

Gareth David Dorrian, A. R. Breen, R. A. Fallows, M. M. Bisi

Research output: Contribution to journalArticlepeer-review


We use dual-site radio observations of interplanetary scintillation (IPS) with extremely long baselines (ELB) to examine meridional flow characteristics of the ambient fast solar wind at plane-of-sky heliocentric distances of 24 – 85 solar radii (R ⊙). Our results demonstrate an equatorwards deviation of 3 – 4∘ in the bulk fast solar wind flow direction over both northern and southern solar hemispheres during different times in the declining phase of Solar Cycle 23.
Original languageEnglish
JournalSolar Physics
Publication statusPublished - 01 Aug 2012


  • Solar wind
  • Interplanetary scintillation
  • Fast Solar Wind
  • Parker Spiral
  • Radio observations
  • Heliosphere
  • Interplanetary magnetic field
  • IPS


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