Auroral Electrojet Indices Designed to Provide a Global Measure, 2.5-Minute Intervals, of Auroral Zone Magnetic Activity

Metadata Updated: November 10, 2015

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 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 indices are derived in response to a need voiced by scientific users. These indices are computed from a network of geomagnetic observatories, some recording digitally and others as analog, which encircle the northern auroral zone. The AE computation uses horizontal magnetic field values measured at 2.5-minute intervals. AE plus the supplemental indices AL, AU and AO are included in this data file.

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Dates

Metadata Date September 18, 2015
Metadata Created Date November 10, 2015
Metadata Updated Date November 10, 2015
Reference Date(s) January 1, 1975 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from NOAA CSW Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Date September 18, 2015
Metadata Created Date November 10, 2015
Metadata Updated Date November 10, 2015
Reference Date(s) January 1, 1975 (publication)
Responsible Party DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (Point of Contact)
Contact Email
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
Frequency Of Update notPlanned
Guid gov.noaa.ngdc.stp.indices:G00113
Harvest Object Id 25b2df02-4c9e-4801-a5df-70f2967944ec
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
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 Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1966-01-01
Temporal Extent End 1974-12-31

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