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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.
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Dataset No POCs available for this dataset
Documentation links not available.
  • publication: 1965-01-01
Edition: First
Dataset Progress Status Under development
Data Update Frequency: Irregular
Supplemental Information:
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
Use Limitations
  • While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data.
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Time Period: 1957-07-01 to Present
Spatial Bounding Box Coordinates:
N: 90.000000
S: -90.000000
E: 180.000000
W: -180.000000
Theme keywords NASA/GCMD Earth Science Keywords
  • EARTH SCIENCE > SOLID EARTH > Geomagnetism > Geomagnetic Indices
Uncontrolled Keywords
  • Space Physics > Magnetospheric Science
  • Indices, AE
  • Geomagnetism
Place keywords NASA/GCMD Location Keywords
  • Global
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      • Down loadable for no cost
      Last Modified: 2015-09-18
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