Brief Description:
This package consists of the main subroutine FLDINT and several supporting
subroutines. For a given point in space FLDINT determines the magnetic field
strength (main and external contributions), the L-value, the minimum field
strength along the field line, and the electron drift velocity. The IGS (75) model is used for the internal (core) field and
the Olson- Pfitzer model for the external source fields. L-values are obtained
by the usual integration procedure along the magnetic field line from mirror
point to conjugate mirror point. Different from other L calculation programs,
however, FLDINT can modify the mirror points to more accurately represent drift
shells of isotropic particle distribution in the drift shell splitting region.
The program also flags open field lines inside the auroral oval.
Availability: Please contact model author to inquire about availability of software.
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