2a1d6525-2e24-428f-a29f-d46c7a44eaaf urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2025-10-16T08:06:23 creation ISO 19115 2016 Geophysics - Geomagnetics 2a1d6525-2e24-428f-a29f-d46c7a44eaaf Calibrated time-series data are acquired from Geoscience Australia's geomagnetic observatory network in Australia and Antarctica. Indices of geomagnetic activity are derived from these time series. These primary and derived data are provided to international data centres and agencies, space weather analysts, the resource exploration sector, and research institutions. They are used in navigation, magnetic-field modelling, resource exploration and exploitation, space weather monitoring and geoscience research. {"type": "Polygon", "coordinates": [[[60.0, -68.0], [170.0, -68.0], [170.0, -12.0], [60.0, -12.0], [60.0, -68.0]]]} 60.0 170.0 -68.0 -12.0 AU DC2020 Geophysics HVC_144644 Magnetotelluric Published_External geomagnetism geophysics geoscience Data access point documentDigital Minute Values Request Form HTML Unnamed resource documentDigital HTML