! The Weimer model of high-latitude potential is the intellectual property of ! Daniel Weimer and may not be extracted, distributed, or used for any purpose ! other than as implemented in the TIE-GCM. For further information concerning ! this model, please contact Dan Weimer. ! ! 2005 Version of the electric and magnetic potential (FAC) models ! by Dan Weimer. Uses Spherical Cap Harmonic Analysis (SCHA) functions. ! Model description is in: ! Weimer, D. R., Predicting Surface Geomagnetic Variations Using Ionospheric ! Electrodynamic Models, J. Geophys. Res., 110, A12307, doi:10.1029/ ! 2005JA011270, 2005. ! Information about the model (such as outer boundary calculation) ! is also in the earlier paper: ! Weimer, D. R. (2005), Improved ionospheric electrodynamic models and ! application to calculating Joule heating rates, J. Geophys. Res., 110, ! A05306, doi:10.1029/2004JA010884.