title: Spatial correlation of solar-wind turbulence from two-point measurements.
abstract: Interplanetary turbulence, the best studied case of low frequency plasma turbulence, is the only directly quantified instance of astrophysical turbulence. Here, magnetic field correlation analysis, using for the first time only proper two-point, single time measurements, provides a key step in unraveling the space-time structure of interplanetary turbulence. Simultaneous magnetic field data from the Wind, ACE, and Cluster spacecraft are analyzed to determine the correlation (outer) scale, and the Taylor microscale near Earth's orbit.
authors.affiliation: Bartol Research Institute, Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA.
authors.forename: W H
authors.initials: WH
authors.lastname: Matthaeus
authors.forename: S
authors.initials: S
authors.lastname: Dasso
authors.forename: J M
authors.initials: JM
authors.lastname: Weygand
authors.forename: L J
authors.initials: LJ
authors.lastname: Milano
authors.forename: C W
authors.initials: CW
authors.lastname: Smith
authors.forename: M G
authors.initials: MG
authors.lastname: Kivelson