geomag_calc.h

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/* Copyright (C) 2003-2012 Nikolay Koulev <nkoulev@uni-bremen.de>
  
   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.
  
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
  
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
   USA. */

#ifndef geomag_calc_h
#define geomag_calc_h

#include "matpack.h"

void magfield_nk(  // Output
                   Numeric& B_r, // radial component of the geomagnetic field
                   Numeric& B_th, // colatitudinal component of the geomagnetic field
                   Numeric& B_ph, // longitudinal component of the geomagnetic field

                   // Input
                   const Numeric r, // radial distance to the point 
                   const Numeric theta, // geocentric colatitude of the point
                   const Numeric phi, // longitude of the point
                   // All coordinates - geocentric!

                   const Index Ny // number of elapsed years after an epoch year, J - [0,4]
                );
#endif