geo_mag_declination.h

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/**
* @file geo_mag_declination.h
*
* Calculation / lookup table for Earth's magnetic field declination, inclination and strength.
* Data generated by https://www.ngdc.noaa.gov/geomag-web/#igrfgrid IGRF calculator on 22 Jan 2018
*
*/

#pragma once

// Return magnetic declination in degrees
float get_mag_declination(float lat, float lon);

// Return magnetic field inclination in degrees
float get_mag_inclination(float lat, float lon);

// return magnetic field strength in centi-Tesla
float get_mag_strength(float lat, float lon);