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.

Data e Risorse

Campo Valore
access_constraints ["Use Constraints: None", "Access Constraints: No Constraints"]
bbox-east-long 180.000000
bbox-north-lat 90.000000
bbox-south-lat -90.000000
bbox-west-long -180.000000
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "1965-01-01"}]
frequency-of-update irregular
guid gov.noaa.ngdc.stp.indices:G00115
licence ["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."]
metadata-date 2015-09-18
metadata-language eng; USA
metadata_type geospatial
progress underDevelopment
resource-type dataset
spatial {"type": "Polygon", "coordinates": [[[-180.0, -90.0], [180.0, -90.0], [180.0, 90.0], [-180.0, 90.0], [-180.0, -90.0]]]}
spatial_harvester true
temporal-extent-begin 1957-07-01
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • ae
  • amerigeo
  • amerigeoss
  • ckan
  • earth-science
  • geo
  • geomagnetic-indices
  • geomagnetism
  • geoss
  • global
  • indices
  • magnetospheric-science
  • national
  • north-america
  • solid-earth
  • space-physics
  • united-states
isopen False
metadata_created 2025-11-22T01:10:05.537041
metadata_modified 2025-11-22T01:10:05.537045
notes 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.
num_resources 3
num_tags 17
title Auroral Electrojet Index Designed to Provide a Global Measure, Hourly Intervals, of Auroral Zone Magnetic Activity