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SUMMARY:FARIMA modeling of solar flare activity from empirical time series
  of soft X-ray solar emission - K.Burnecki and A. Weron (Wroclaw Universit
 y of Technology)
DTSTART:20081111T140000Z
DTEND:20081111T150000Z
UID:TALK14830@talks.cam.ac.uk
CONTACT:Christian Franzke
DESCRIPTION:A time series of soft X-ray emission observed by the GOES sate
 llites\nfrom 1974-2007 is\nanalyzed. We show that in the periods of high s
 olar activity the\nenergy distribution of soft X-ray solar flares for M an
 d C\nclasses is well described by a FARIMA model with Pareto noise. The mo
 del\nincorporates two effects detected in our empirical studies. One of\nt
 hem is a long-term dependence (long-term\nmemory)\, and another correspond
 s to heavy-tailed distributions.\nFinally\, we address a challenging probl
 em of how to build a proper\nphysical model for analyzing fractional dynam
 ics (Langevin or\nFokker–Planck) with long-range dependence of empirical
  data sets.
LOCATION:British Antarctic Survey\, Room 330B
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