Momentum balance and flux conservation in model magnetospheric magnetic fields

Details Momentum balance and flux conservation in model magnetospheric magnetic fields Momentum balance and flux conservation in model magnetospheric magnetic fields

Sep 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87.7460w&link_type=abstract

Journal of Geophysical Research, vol. 87, Sept. 1, 1982, p. 7460-7466.

Physics

21

Atmospheric Models, Earth Magnetosphere, Geomagnetism, Magnetic Field Configurations, Momentum Transfer, Flux Quantization, Plasma Layers, Pressure Distribution

Scientific paper

Four recent quantitative magnetospheric magnetic field models were tested to determine whether the magnetic field configuration is consistent with a balance of forces between the J x B force and the gradient of the pressure. A necessary condition for the models to be consistent with an isotropic pressure distribution is that curl (J x B) vanish. None of the models (Olson-Pfitzer, Tsyganenko, Hedgecock-Thomas, and Beard) meet this requirement. The present analysis indicates that the models are intrinsically inconsistent with momentum balance with any isotropic pressure distribution.

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