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2010. National Geophysical Data Center. This line shapefile shows lines of equal annual change (secular variation) in the horizontal component of the total field intensity of the Earth's ... National Atlas of the United States.
2010. National Geophysical Data Center. This shapefile shows lines of equal annual change (secular variation) in the inclination of the Earth's magnetic field, derived from the Internatio... National Atlas of the United States.
2010. National Geophysical Data Center. This line shapefile shows lines of equal annual change (secular variation), in the total field intensity of the Earth's magnetic field, derived fro... National Atlas of the United States.
2010. National Geophysical Data Center. This shapefile contains isodynamic lines (lines of equal total intensity of the Earth's magnetic field), derived from the International Geomagnetic... National Atlas of the United States.
2016. Oficional Nacional de Hidrografia y Geodesia (ONHG). This polygon shapefile represents municipalities in Cuba. Data for Global Map Cuba were transformed from Digital Topographical Map 1:250 000 of Cub... International Steering Committee for Global Mapping.
2016. Oficional Nacional de Hidrografia y Geodesia (ONHG). This line shapefile represents municipality boundary lines in Cuba. Data for Global Map Cuba were transformed from Digital Topographical Map 1:250 ... International Steering Committee for Global Mapping.
2016. Oficional Nacional de Hidrografia y Geodesia (ONHG). This point shapefile represents railroad stations in Cuba. Data for Global Map Cuba were transformed from Digital Topographical Map 1:250 000 of Cu... International Steering Committee for Global Mapping.
2016. Oficional Nacional de Hidrografia y Geodesia (ONHG). This line shapefile represents railroads in Cuba. Data for Global Map Cuba were transformed from Digital Topographical Map 1:250 000 of Cuba provid... International Steering Committee for Global Mapping.
2016. Oficional Nacional de Hidrografia y Geodesia (ONHG). This line shapefile represents rivers in Cuba. Data for Global Map Cuba were transformed from Digital Topographical Map 1:250 000 of Cuba provided ... International Steering Committee for Global Mapping.
2016. Oficional Nacional de Hidrografia y Geodesia (ONHG). This line shapefile represents roads in Cuba. Data for Global Map Cuba were transformed from Digital Topographical Map 1:250 000 of Cuba provided ... International Steering Committee for Global Mapping.