• Login
     
    View Item 
    •   ORFEO Home
    • Royal Belgian Institute for Space Aeronomy
    • BIRA-IASB publications
    • View Item
    •   ORFEO Home
    • Royal Belgian Institute for Space Aeronomy
    • BIRA-IASB publications
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Modelling the outer radiation belt as a complex system in a self-organised critical state

    Thumbnail
    View/Open
    Crosby(2005b).pdf (2.591Mb)
    Authors
    Crosby, N.B.
    Meredith, N.P.
    Coates, A.J.
    Iles, R.H.A.
    Show allShow less
    Discipline
    Physical sciences
    Subject
    electron
    Audience
    Scientific
    Date
    2005
    Metadata
    Show full item record
    Description
    The dynamic behaviour of the outer electron radiation belt makes this area of geo-space a candidate for the concept of self-organized criticality. It is shown here that frequency distributions of measured outer electron radiation belt data are well-represented by power-laws over two decades. Applying the concept of self-organized criticality to interpret the shape of the distributions suggests another approach to complement existing methods in the interpretation of how this complicated environment works. Furthermore sub-grouping the radiation belt count rate data as a function of spatial location or temporal interval (e.g. L-shell, magnetic local time, solar cycle, ...) shows systematic trends in the value of the slope of the power-laws. It is shown that the inner part of the outer radiation belt is influenced in a similar manner to the outer part, but in a less profound way. Our results suggest that the entire outer radiation belt appears to be affected as the sum of its individual parts. 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 could then be compared with models used in spacecraft design.
    Citation
    Crosby, N.B.; Meredith, N.P.; Coates, A.J.; Iles, R.H.A. (2005). Modelling the outer radiation belt as a complex system in a self-organised critical state. , Nonlinear Processes in Geophysics, Vol. 12, Issue 6, 993-1001, DOI: 10.5194/npg-12-993-2005.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/4645
    doi: http://dx.doi.org/10.5194/npg-12-993-2005
    scopus: 2-s2.0-30744461368
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
    NewsHelpdeskBELSPO OA Policy

    Browse

    All of ORFEOCommunities & CollectionsBy Issue DateAuthorsTitlesDisciplinesThis CollectionBy Issue DateAuthorsTitlesDisciplines
     

    DSpace software copyright © 2002-2016  DuraSpace
    Send Feedback | Cookie Information
    Theme by 
    Atmire NV