Auroral Electrojet Index Designed to Provide a Global Measure, Hourly Intervals, of Auroral Zone Magnetic Activity
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 auroral oval. Ideally, it is the total range of deviation at an instant of time from quiet day values of the horizontal magnetic field (H) around the auroral oval. The hourly AE, AL, AU, and AO indices were derived from hourly scaled values of magnetic horizontal intensity or the means of indices measured at finer sample increments (2.5 or 1.0-minute). These indices are derived from a network of geomagnetic observations that encircle the northern auroral oval.
|Distributor||DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA,
U.S. Department of Commerce
|Dataset Point of Contact||Justin Mabie
Space and Terrestrial Weather Specialist
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Documentation links not available.
|Dataset Progress Status||Under development|
|Data Update Frequency:||Irregular|
World Data Center A for Solar-Terrestrial Physics. Report UAG-29, 31, 33, 37, 39, 45, 47, 59, 60, 62, 64, 73, and 76.Observing station type: Geophysical Observatory. Data collection type: Network.
|Purpose:||Research - Auroral Zone Magnetic Activity|
|Time Period:||1957-07-01 to Present|
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Last Modified: 2015-09-18
For questions about the information on this page, please email: Justin.Mabie@noaa.gov