Fig. 4.


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Diagram of different reconnection scenarios versus normalized reconnecting current layer thickness δi=L/d, and Lundquist number SL. Other designations in the figure are the following: δSP – current sheet thickness predicted by Sweet-Parker model; δPL – resistive skin depth for plasmoid; SC – critical value of the Lundquist number for the onset of plasmoid instability. Also shown are the parameter range for several plasmas of interest in space weather research: the Earth magnetotail, the solar chromosphere, the solar tachocline and the solar corona. The different methods and codes available in SWIFF are also set in the diagram according to their domain of applicability. All regimes of reconnection are covered by SWIFF.

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