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Radial evolution of cross helicity in high‐latitude solar wind
Author(s) -
Breech B.,
Matthaeus W. H.,
Minnie J.,
Oughton S.,
Parhi S.,
Bieber J. W.,
Bavassano B.
Publication year - 2005
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2004gl022321
Subject(s) - helicity , solar wind , physics , latitude , turbulence , high latitude , spacecraft , geophysics , atmospheric sciences , plasma , mechanics , astronomy , nuclear physics , particle physics
We employ a turbulence transport theory to explain the high‐latitude radial evolution of cross helicity, or Alfvénicity, observed by the Ulysses spacecraft. Evolution is slower than at low latitudes due to weakened shear driving.