References

ANGEO

Annales Geophysicae

ANGEO

1432-0576

Copernicus GmbH

Göttingen, Germany

10.5194/angeo-25-2627-2007

Quantitative aspects of the Galperin L parameter

Kosik

J. C.

Centre de Données de la Physique des Plasmas, Av. du Colonel Roche, 31400 Toulouse, France

02 01 2008

25 12 2627 2631

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A new geomagnetic parameter was suggested twenty years ago by Y. Galperin, the Galperin L parameter, and it was introduced into the CNES Maglib for French-Russian projects in the exploration of the distant magnetosphere. The definition and the advantages of the Galperin L parameter are recalled in this brief paper. Unforeseen possibilities in the use of this parameter for mathematical models of the magnetosphere are stressed using past results obtained with the Mead model. The Galperin L parameter is shown to add, in the synchronous region, a quantitative capability to the qualitative description (labelling) of the magnetosphere. More work will be necessary to adapt past mathematical models to present numerical models and extend the domain of the quantitative applications of the Galperin L parameter.

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