Auroral Electrojet Index Designed to Provide a Global Measure, l-minute Intervals, of Auroral Zone Magnetic Activity
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title: Auroral Electrojet Index Designed to Provide a Global Measure, l-minute Intervals, of Auroral Zone Magnetic Activity
date: (CI_Date)
date: 1976-01-01
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name: Surface Geomagnetic Data
description: Historically, magnetic observatories were established to monitor the secular change of the Earth's magnetic field, and this remains one of their most important functions.
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name: International Standard Serial Numbers (ISSN) Upper Atmosphere Geophysics (UAG)
issueIdentification: 'ISSN 0579-7144 UAG REPORTS "AURORAL ELECTROJET MAGNETIC ACTIVITY INDICES (AE)" FOR VARIOUS YEARS'
abstract: 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. These indices are computed from a network of geomagnetic observations, some recording digitally and others as analog, which encircle the northern auroral zone. The AE computation uses horizontal magnetic field measured at 1-minute intervals. AE plus the supplemental indices AL, AU, and AO are contained in this data file. For earlier years, the AE indices were derived at 2.5 minutes. Also, hourly mean indices are calculated.
purpose: Research - Auroral Zone Magnetic Activity
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individualName: Justin Mabie
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useLimitation: 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.
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language: eng; USA
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beginPosition: 1975-01-01
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supplementalInformation: 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. ISSN 0579-7144 UAG-73 "Auroral Electrojet Magnetic Activity Indices (AE) for Jan-Jun 1975" ISSN 0579-7144 UAG-76 "Auroral Electrojet Magnetic Activity Indices (AE) FOR Jul-Dec 1975"
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individualName: Justin Mabie
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linkage: ftp://ftp.ngdc.noaa.gov/STP/GEOMAGNETIC_DATA/INDICES/AURORAL_ELECTROJET/ONE_MINUTE/
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name: Auroral Electroject Index
description: Index of one minute intervals
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description: NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
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DateTime: 2015-04-22T00:00:00
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maintenanceNote: This record was automatically modified on 2015-09-18 to include references to NCEI where applicable.
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