ARTS: geomag_calc.h Source File

00001 /* Copyright (C) 2003-2008 Nikolay Koulev <nkoulev@uni-bremen.de>
00002   
00003    This program is free software; you can redistribute it and/or
00004    modify it under the terms of the GNU General Public License as
00005    published by the Free Software Foundation; either version 2 of the
00006    License, or (at your option) any later version.
00007   
00008    This program is distributed in the hope that it will be useful,
00009    but WITHOUT ANY WARRANTY; without even the implied warranty of
00010    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00011    GNU General Public License for more details.
00012   
00013    You should have received a copy of the GNU General Public License
00014    along with this program; if not, write to the Free Software
00015    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00016    USA. */
00017 
00029 #ifndef geomag_calc_h
00030 #define geomag_calc_h
00031 
00032 #include "matpack.h"
00033 
00034 void magfield_nk(  // Output
00035                    Numeric& B_r, // radial component of the geomagnetic field
00036                    Numeric& B_th, // colatitudinal component of the geomagnetic field
00037                    Numeric& B_ph, // longitudinal component of the geomagnetic field
00038 
00039                    // Input
00040                    const Numeric r, // radial distance to the point 
00041                    const Numeric theta, // geocentric colatitude of the point
00042                    const Numeric phi, // longitude of the point
00043                    // All coordinates - geocentric!
00044 
00045                    const Index Ny // number of elapsed years after an epoch year, J - [0,4]
00046                 );
00047 #endif