Monitoring
Information related to monitoring.
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Geomagnetism Monitoring Operations
Learn more about the USGS Geomagnetism operations.
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Instrumentation
See the instruments we use at our geomagnetic observatories and how they help us to gather data.
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Observatories
Get information on and locations of geomagnetic observatories operated by the USGS and partners of the USGS geomagnetism program.
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International Observatory Programs
Links to our international observatory partners' programs.