National Magnetic Observatory | INSTITUT DE PHYSIQUE DU GLOBE DE PARIS


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The “Institut de Physique du Globe de Paris” (IPGP) is running 11 magnetic observatories spread over 5 continents. In these observatories the Earth’s magnetic field strength and direction is measured at 1-second sampling rate with instruments that have been developed, tested and calibrated in-house. The observatories are located in remote areas, away from industrial sites, to minimise anthropogenic noise. The data acquired allow characterising magnetic signals at temporal scale ranging from seconds to decades. They carry not only information on the structure and dynamics of Earth’s deep interior but also on the systems of electrical currents flowing in the atmosphere due to the interaction of the sun with the Earth system. These data are used for research and industrial applications such as orientation and space-weather.