Magnetohydrodynamic turbulence in the solar polar wind- comparing the last two solar minima.

Details Magnetohydrodynamic turbulence in the solar polar wind- comparing the last two solar minima. Magnetohydrodynamic turbulence in the solar polar wind- comparing the last two solar minima.

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010eguga..12.1823c&link_type=abstract

EGU General Assembly 2010, held 2-7 May, 2010 in Vienna, Austria, p.1823

Computer Science

Scientific paper

ULYSSES spacecraft solar polar passes at solar minimum provide in-situ observations of evolving MHD turbulence in the solar wind under ideal conditions of fast quiet flow. The recent unusually inactive solar minimum shows a decrease in the turbulent fluctuations of a factor of two in power in comparison with the previous minimum. We focus on two successive polar passes around the last two solar minima which provide extended intervals of quiet, fast solar wind at a range of radial distances and latitudes: the south polar pass of 1994 and the north polar pass of 1995, and the south polar pass of 2007 and the north polar pass of 2008. We perform statistical analyses of the fluctuating magnetic field observed in- situ by the ULYSSES spacecraft, from the perspective of quantitative characterization of the evolving magnetohydrodynamic (MHD) turbulence. We find a single generalized scaling function characterises this finite range turbulence and is invariant to changes in plasma conditions. If these observations are indeed characteristic of MHD turbulence evolving in- situ, then this quantifies for the first time a key aspect of the universal nature of evolving MHD turbulence in a system of finite size, with implications both for theoretical development, and for our understanding of the evolving solar wind.

Affiliated with

Also associated with

No associations

Rating

Magnetohydrodynamic turbulence in the solar polar wind- comparing the last two solar minima. does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Magnetohydrodynamic turbulence in the solar polar wind- comparing the last two solar minima., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetohydrodynamic turbulence in the solar polar wind- comparing the last two solar minima. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-916811