HR: 09:00h
AN: SH11B-05    [PDF]
TI: Analysis of High-Latitude IMF Turbulence
AU: * Smith, C W
EM: Charles.Smith@unh.edu
AF: University of New Hampshire, Space Science Center Morse Hall University of New Hampshire, Durham, NH 03824 United States
AB: We examine measurements of the interplanetary magnetic field (IMF) by the Ulysses spacecraft from launch until after the first solar pass using a variety of tools to characterize the interplanetary turbulence. We resolve systematic changes in the powerlaw index, the fluctuation anisotropy, and wave vector orientation (geometry) of the inertial-range fluctuations associated with high latitude. We find a decrease in the fluctuation anisotropy relative to the mean magnetic field and an increase in wave power associated with wave vectors parallel to the mean field that can be associated with high spacecraft latitude. Wave vectors perpendicular to the mean magnetic field still dominate the statistics. Preliminary analyses show a consistently flatter power spectrum within the inertial range when compared with low-latitude observations.
DE: 2134 Interplanetary magnetic fields
DE: 2149 MHD waves and turbulence
DE: 7863 Turbulence
SC: SPA - Solar and Heliospheric Physics [SH]
MN: 2003 Fall Meeting