Applying Frequency Distributions on Radiation Belt Data: A New Approach

Details Applying Frequency Distributions on Radiation Belt Data: A New Approach Applying Frequency Distributions on Radiation Belt Data: A New Approach

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsm22b..11c&link_type=abstract

American Geophysical Union, Fall Meeting 2001, abstract #SM22B-11

Mathematics

Probability

2720 Energetic Particles, Trapped, 2722 Forecasting, 2730 Magnetosphere: Inner, 2740 Magnetospheric Configuration And Dynamics

Scientific paper

The radiation belts, especially the outer belts, are dynamic on all spatial and time scales. It is shown here that frequency distributions of measured radiation belt data are well-represented by power-laws over one to two decades. Furthermore sub-grouping the data as a function of L-shell and local time shows systematic trends in the value of the slope of the power-laws. Applying the concept of self-organised criticality to interpret the shape of the distibutions suggests another approach to complement already existing approaches in the interpretation of how this complicated environment works. Furthermore this type of study also gives the probability of exceeding a given threshold value over a given time; limiting the size of "an event". The average values can then be compared with models used in spacecraft design.

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