World Magnetic Model Magnetic south pole locations (1590-2015) Magnetic Declination degree lines and magnetic south pole locations Chulliat, A., S. Macmillan, P. Alken, C. Beggan, M. Nair, B. Hamilton, A. Woods, V. Ridley, S. Maus and A. Thomson, 2014. The US/UK World Magnetic Model for 2015-2020, NOAA National Geophysical Data Center, Boulder, CO, doi: 10.7289/V5TH8JNW [access date]. https://www.ngdc.noaa.gov/geomag/WMM/DoDWMM.shtml Downloaded 22 September 2016 http://www.ngdc.noaa.gov/geomag-web/#igrfgrid , 0km MSL , Declination, choose your bounding box and step size Public Domain. Metadata record: https://www.ngdc.noaa.gov/metaview/page?xml=NOAA/NESDIS/NGDC/MGG/Geophysical_Models/iso/xml/WMM2015.xmlampersandview=getDataViewampersandheader=none (Replace 'ampersand' in address with the actual sign.) Editor Geophysics Mirko Scheinert mirko.scheinert@tu-dresden.de Author NOAA geomag.models@noaa.gov Public Domain