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A New Technique using Electron Velocity Data from the Four Cluster Spacecraft to Explore Magnetofluid Turbulence in the Solar WindIt is now possible in certain circumstances to use velocity moments computed from the Plasma Electron and Current Experiment (PEACE) on the four Cluster spacecraft to determine a number of turbulence properties of the solar wind, including direct measurements of the vorticity and compressibility. Assuming that the four spacecraft are not co-planar and that there is only a linear variation of the plasma variables across the volume defined by the four satellites, one can estimate the curl of the fluid velocity, i.e., the vorticity. From the vorticity it is possible to explore directly intermittent regions in the solar wind where dissipation is likely to be enhanced. In addition, one can estimate directly the Taylor microscale.
Document ID
20080047693
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Goldstein, Melvyn L.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Gurgiolo, C.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Fazakerley, A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Lahiff, A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 24, 2013
Publication Date
December 12, 2008
Subject Category
Astrophysics
Meeting Information
Meeting: American Geophysical Union Conference
Location: San Francisco, CA
Country: United States
Start Date: December 13, 2008
End Date: December 25, 2008
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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