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Federal
Data on the Earth's Magnetic Field and its Secular Change since 1800 34 recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
Information on the past and present orientation of the Earth's magnetic field is available from the National Geophysical Data Center (NGDC) which serves as the... -
Federal
Worldwide Magnetograms with Geomagnetic Components D, H, Z, or X, Y, and Z
National Oceanic and Atmospheric Administration, Department of Commerce —
The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) receives magnetograms from over 200 geomagnetic observatories. The... -
Federal
Geomagnetic Kn, Ks, Km Indices
National Oceanic and Atmospheric Administration, Department of Commerce —
A full description of the indices Kn, Ks, Km is given in a monography,"Indices Kn, Ks et Km, 1964-1967", edited in 1968 by the Centre National de la Recherche... -
Federal
Geomagnetic Storm Sudden Commencements
National Oceanic and Atmospheric Administration, Department of Commerce —
Storm Sudden Commencements (ssc) 1868 to present: STORM1 and STORM2 Lists: (Some text here is taken from the International Association of Geomagnetism and Aeronomy... -
Federal
Auroral Electrojet Index Designed to Provide a Global Measure, l-minute Intervals, of Auroral Zone Magnetic Activity
National Oceanic and Atmospheric Administration, Department of Commerce —
The Auroral Electrojet index (AE) is designed to provide a global quantitative measure of auroral zone magnetic activity produced by enhanced ionospheric currents... -
Federal
Air Force Geophysics Laboratory Magnetometer Network
National Oceanic and Atmospheric Administration, Department of Commerce —
This file is comprised of the variation one minute values of the geomagnetic components X, Y and Z. These data were calculated by the Air Force Geophysics Laboratory... -
Federal
Values for the 15-minute Index of Geomagnetic Activity at High Latitude Stations (Geomagnetic Latitude 58 Degrees)
National Oceanic and Atmospheric Administration, Department of Commerce —
The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) receives, on a monthly basis, Q indices from Sodankyla. These data... -
Federal
Geomagnetic aa Indices
National Oceanic and Atmospheric Administration, Department of Commerce —
The geomagnetic aa indices are the continuation of the series beginning in the year 1868. A full description of these indices is given in the International... -
Federal
Values of Kp Indices, Ap Indices, Cp Indices, C9 Indices, Sunspot Number, and 10.7 cm Flux
National Oceanic and Atmospheric Administration, Department of Commerce —
This data file consists of Kp indices, Ap indices, Cp indices, C9 indices, sunspot number, and 10.7 cm flux. The most often requested parameter of this file are the... -
Federal
DST Indices - Reflection Variations in the Magnetospheric Tail Current and Field-aligned Currents in the Magnetosphere
National Oceanic and Atmospheric Administration, Department of Commerce —
The file is comprised of monthly DST indices. These indices are derived from a network of eight stations in the equatorial latitudes. Hourly DST indices provide an... -
Federal
Reflection of the Geomagnetic Activity Occurring in the Earth's Northern and Southern Hemisphere (KM, KN, KS Indices)
National Oceanic and Atmospheric Administration, Department of Commerce —
The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) receives on a monthly basis, the KM, KN, KS indices from Institue... -
Federal
An Index (PC) Aimed at Monitoring the (P)olar (C)ap for Magnetic Activity
National Oceanic and Atmospheric Administration, Department of Commerce —
PC is an index for magnetic activity in the (P)olar (C)ap. It is based on data from a single nearpole station, and aimed to monitor the polar cap magnetic activity... -
Federal
K Indices of Magnetic Activity Relative to an assumed Quiet-day for each 3-Hour Period
National Oceanic and Atmospheric Administration, Department of Commerce —
The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) receives the K indices on a current basis from approximately 85... -
Federal
Auroral Electrojet (AE, AL, AO, AU) - A Global Measure of Auroral Zone Magnetic Activity
National Oceanic and Atmospheric Administration, Department of Commerce —
The AE index is derived from geomagnetic variations in the horizontal component observed at selected (10-13) observatories along the auroral zone in the northern... -
Federal
AA Geomagnetic Activity Indices From Two Antipodal Observatories in Australia and England
National Oceanic and Atmospheric Administration, Department of Commerce —
The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) receives, on a monthly basis, indices that are based on the data... -
Federal
Boulder Magnetic Observatory
National Oceanic and Atmospheric Administration, Department of Commerce —
These data are vector and scalar component values of the Earth's magnetic field for 2004 recorded at the Boulder Magnetic Observatory in Colorado. Vector values are... -
Federal
Auroral Electrojet Indices Designed to Provide a Global Measure, 2.5-Minute Intervals, of Auroral Zone Magnetic Activity
National Oceanic and Atmospheric Administration, Department of Commerce —
The Auroral Electrojet index (AE) is designed to provide a global quantitative measure of auroral zone magnetic activity produced by enhanced ionospheric currents... -
Federal
Geomagnetic Observatory Database February 2004
National Oceanic and Atmospheric Administration, Department of Commerce —
The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) maintains an active database of worldwide geomagnetic observatory... -
Federal
Auroral Electrojet Index Designed to Provide a Global Measure, Hourly Intervals, of Auroral Zone Magnetic Activity
National Oceanic and Atmospheric Administration, Department of Commerce —
The Auroral Electrojet (AE) index is designed to provide a global quantitative measure of auroral zone magnetic activity produced by enhanced ionospheric currents...
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