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Fok Ring Current


CCMC Services available for Fok Ring Current
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Model Developer(s)
Mei-Ching H. Fok
NASA/Goddard Space Flight Center

Model Description
The Fok Ring Current Model (FRC) is a bounce-averaged kinetic model of the ring current. This model calculates the temporal and spatial variation of the phase space density of ring current species, H+ and e-, in the energy range of 1 - 300 keV. The model considers particle drift, charge exchange loss, in realistic, time-varying magnetic and electric fields. The simulation region is from the dayside magnetopause to the nightside boundary at 10 earth radii. The model is an initial-boundary-value problem, so initial distribution and boundary distribution as a function of time is required to run the model.

Model Input

Model Output
Equatorial H+ and e- fluxes as functions of time, energy and pitch angle. Fluxes at off-equator can be obtained by assuming constant flux along a field line.

References and relevant publications

Relevant links
Fok Ring Current Web link: http://mcf.gsfc.nasa.gov/

CCMC Contact(s)

301-286-1085

Developer Contact(s)

301-286-1083

National Aeronautics and Space Administration Air Force Materiel Command Air Force Office of Scientific Research Air Force Research Laboratory Air Force Weather Agency NOAA Space Environment Center National Science Foundation Office of Naval Research

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