Physics
Scientific paper
Aug 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30ossc4c&link_type=abstract
Geophysical Research Letters, Volume 30, Issue 15, pp. SSC 4-1, CiteID 1802, DOI 10.1029/2003GL017313
Physics
14
Magnetospheric Physics: Mhd Waves And Instabilities, Magnetospheric Physics: Magnetosheath, Magnetospheric Physics: Numerical Modeling
Scientific paper
We present a method for identification of magnetic mirror structures (MMS) in multi-point spacecraft measurements and for deriving their full 3D geometry. Multiple minima in magnetic field data are no longer regarded as separate MMS but as belonging to the same mirror structure. The approach is based on fitting a model magnetic field to measured data from one or many spacecraft. Because of the complexity of the model magnetic field, fitting the data from only one spacecraft has proved not to be reliable even if data from the others spacecraft can be used for checking the results. The main reason is the instability of the numerical fit and the non-uniqueness of the solution found. However, performing the fit on the data from multiple spacecraft allow the use of information from different regions of the structure eliminating false results and improving the numerical stability of the fit.
Constantinescu Dragos O.
Fornacon Karl-Heinz
Glassmeier Karl-Heintz
Treumann Rudolf
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