• 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: 2009-09-01T00:00:00.000+00:00

Solar-Geophysical Data (SGD) reports were a comprehensive compilation of many different kinds of observational data of the sun's activity and its effects on the Earth. Data from the worldwide...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

The International Polar Year Historical Data and Literature collection (formerly known as the Discovery and Access of Historic Literature from the IPYs (DAHLI) project) is an online data...

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