Determining the three dimensional power spectral tensor of MHD turbulence using single spacecraft measurements

Details Determining the three dimensional power spectral tensor of MHD turbulence using single spacecraft measurements Determining the three dimensional power spectral tensor of MHD turbulence using single spacecraft measurements

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sh42b01f&link_type=abstract

American Geophysical Union, Spring Meeting 2001, abstract #SH42B-01

Physics

2134 Interplanetary Magnetic Fields, 2149 Mhd Waves And Turbulence

Scientific paper

Using long intervals of interplanetary magnetic field data, it is possible to estimate all elements of the reduced power spectral tensor as functions of the angle of the local magnetic field to the flow. These elements are a transform of the full three dimensional power spectral tensor. However, inverting this transform is challenging. We present preliminary results of such an inversion, and estimates of the dependence on field angle of elements of the power spectral tensor, and consequences for energetic particle propagation in the heliosphere. Using long intervals of interplanetary magnetic field data, it is possible to estimate all elements of the reduced power spectral tensor as functions of the angle of the local magnetic field to the flow. These elements are a transform of the full three dimensional power spectral tensor. However, inverting this transform is challenging. We present preliminary results of such an inversion, and estimates of the dependence on field angle of elements of the power spectral tensor, and consequences for energetic particle propagation in the heliosphere.

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