• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1972-01-01T00:00:00.000+00:00

The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) maintains an active database of worldwide geomagnetic observatory data to further the...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1972-01-01T00:00:00.000+00:00

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 national data bank for geomagnetic...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2005-01-01T00:00:00.000+00:00

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 measured using 3 mutually...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1957-01-01T00:00:00.000+00:00

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 Association of Geomagnetism and Aeronomy...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-05-13T00:00:00.000+00:00

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 Scientifique, 15 quai Anatole,...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1994-01-01T00:00:00.000+00:00

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 magnetometer network during...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1957-01-01T00:00:00.000+00:00

The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) receives magnetograms from over 200 geomagnetic observatories. The Center archives data from...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1976-01-01T00:00:00.000+00:00

The Auroral Electrojet index (AE) is designed to provide a global quantitative measure of auroral zone magnetic activity produced by enhanced ionospheric currents flowing below and within the...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1968-01-01T00:00:00.000+00:00

The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) receives, on a monthly basis, indices that are based on the data from two approximately...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2015-09-18T00:00:00.000+00:00

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 index of geomagnetic activity as...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1976-01-01T00:00:00.000+00:00

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 hemisphere. To normalize the data...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1965-01-01T00:00:00.000+00:00

The Auroral Electrojet (AE) index is designed to provide a global quantitative measure of auroral zone magnetic activity produced by enhanced ionospheric currents flowing below and within the...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1959-01-01T00:00:00.000+00:00

The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) receives on a monthly basis, the KM, KN, KS indices from Institue De Physique Du Globe, Paris,...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1957-01-01T00:00:00.000+00:00

The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) receives, on a monthly basis, Q indices from Sodankyla. These data are available from July 1957...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1957-01-01T00:00:00.000+00:00

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 Kp indices. These planetary...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1957-01-01T00:00:00.000+00:00

The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) receives the K indices on a current basis from approximately 85 observatories. The K index is a...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-05-13T00:00:00.000+00:00

Storm Sudden Commencements (ssc) 1868 to present: STORM1 and STORM2 Lists: (Some text here is taken from the International Association of Geomagnetism and Aeronomy (IAGA) Bulletin 39) 1868-1967...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-05-13T00:00:00.000+00:00

The abbreviations used for observatory names are as follows: GEOMAGNETIC OBSERVATORIES Code Station Geomagnetic Latitude ABG Alibag AMS Martin de Vivie. These data present the principal magnetic...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1975-01-01T00:00:00.000+00:00

The Auroral Electrojet index (AE) is designed to provide a global quantitative measure of auroral zone magnetic activity produced by enhanced ionospheric currents flowing below and within the...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1955-01-01T00:00:00.000+00:00

The Geomagnetic Indices Bulletin is a one page sheet containing the magnetic indices Kp, Ap, Cp, An, As, Am and the provisional aa indices. The bulletin is published monthly.

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