National Geomagnetism Program

The U.S. National Geomagnetism Program is a program directed by the USGS that monitors the Earth's magnetic field.^[1]

• 1840–1845 Magnetic observatories at Harvard and Girard College
• 1860 Coast Survey begins regular magnetic observations at Maine's Fort Sullivan, Tift's Observatory in Florida and others
• 1882–1883 First International Polar Year
• 1901–1956 United States Coast and Geodetic Survey operates Cheltenham Magnetic Observatory in Maryland
• 1905–1918 USC&GS Explorer performs magnetic surveys
• 1909 Carnegie wooden survey ship built for Carnegie Institution for Science begins seven cruises to measure the Earth's magnetic field
• 1932–1933 Second International Polar Year
• 1956 Fredericksburg Magnetic Observatory in Virginia replaces Cheltenham^[2]
• 1957–1958 International Geophysical Year
• 1961 Boulder Geomagnetic Observatory, Colorado
• 1973 NOAA/USC&GS geomagnetism program transferred to the USGS
• 1979–1980 Magsat satellite survey from orbit
• 1994 U.S. National Space Weather Program (NSWP), an interagency collaboration^[3]

History of geomagnetism

• Official site

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