Auroral Electrojet (AE, AL, AO, AU) - A Global Measure of Auroral Zone Magnetic Activity | identificationInfo|
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(MI_Metadata) fileIdentifier: gov.noaa.ngdc.stp.indices:G00584 language: eng; USA characterSet: (MD_CharacterSetCode) utf8 hierarchyLevel: (MD_ScopeCode) dataset contact: (CI_ResponsibleParty) individualName: Justin Mabie organisationName: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce positionName: Space and Terrestrial Weather Specialist contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (303) 497-6135 facsimile: (303) 497-6513 address: (CI_Address) deliveryPoint: 325 Broadway, Mail Code E/GC4 city: Boulder administrativeArea: CO postalCode: 80305-3328 country: USA electronicMailAddress: Justin.Mabie@noaa.gov role: (CI_RoleCode) pointOfContact dateStamp: 2015-09-18 metadataStandardName: ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data metadataStandardVersion: ISO 19115-2:2009(E) return to top identificationInfo: (MD_DataIdentification) citation: (CI_Citation) title: Auroral Electrojet (AE, AL, AO, AU) - A Global Measure of Auroral Zone Magnetic Activity date: (CI_Date) date: 1976-01-01 dateType: (CI_DateTypeCode) publication edition: First citedResponsibleParty: (CI_ResponsibleParty) organisationName: NOAA National Centers for Environmental Information role: (CI_RoleCode) publisher citedResponsibleParty: (CI_ResponsibleParty) organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce role: (CI_RoleCode) publisher citedResponsibleParty: (CI_ResponsibleParty) organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://swdcwww.kugi.kyoto-u.ac.jp/aedir/index.html protocol: http name: WDC-C2 KYOTO AE index service description: Home page for the World Data Center for Geomagnetism with links to the data function: (CI_OnLineFunctionCode) information role: (inapplicable) citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.ngdc.noaa.gov/geomag protocol: http name: Auroral Electrojet Index (AE) description: Home page function: (CI_OnLineFunctionCode) information role: (inapplicable) series: (CI_Series) name: Upper Atmosphere Geophysics International Standard Serial Numbers (ISSN) issueIdentification: 'ISSN 0579-7144 UAG Upper Atmosphere Geophysics' abstract: The AE index is derived from geomagnetic variations in the horizontal component observed at selected (10-13) observatories along the auroral zone in the northern hemisphere. To normalize the data a base value for each station is first calculated for each month by averaging all the data from the station on the five international quietest days. This base value is subtracted from each value of one-minute data obtained at the station during that month. Then among the data from all the stations at each given time (UT), the largest and smallest values are selected. The AU and AL indices are respectively defined by the largest and the smallest values so selected. The symbols, AU and AL, derive from the fact that these values form the upper and lower envelopes of the superposed plots of all the data from these stations as functions of UT. The difference, AU minus AL, defines the AE index, and the mean value of the AU and AL, i.e. (AU+AL)/2, defines the AO index. The term "AE indices" is usually used to represent these four indices (AU, AL, AE and AO). The AU and AL indices are intended to express the strongest current intensity of the eastward and westward auroral electrojets, respectively. The AE index represents the overall activity of the electrojets, and the AO index provides a measure of the equivalent zonal current. purpose: Geomagnetic Research status: (MD_ProgressCode) underDevelopment pointOfContact: (CI_ResponsibleParty) individualName: Justin Mabie organisationName: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce positionName: Space and Terrestrial Weather Specialist contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (303) 497-6135 facsimile: (303) 497-6513 address: (CI_Address) deliveryPoint: 325 Broadway, Mail Code E/GC4 city: Boulder administrativeArea: CO postalCode: 80305-3328 country: USA electronicMailAddress: Justin.Mabie@noaa.gov role: (CI_RoleCode) pointOfContact resourceMaintenance: (MD_MaintenanceInformation) maintenanceAndUpdateFrequency: (MD_MaintenanceFrequencyCode) asNeeded descriptiveKeywords: (MD_Keywords) keyword: Earth Science > Solid Earth > Geomagnetism > Geomagnetic Indices keyword: Earth Science > Sun-Earth Interactions > Ionosphere/Magnetosphere Dynamics > Aurorae keyword: Earth Science > Sun-Earth Interactions > Ionosphere/Magnetosphere Dynamics > Geomagnetic Indices type: (MD_KeywordTypeCode) theme thesaurusName: (CI_Citation) title: NASA/GCMD Earth Science Keywords date: (unknown) descriptiveKeywords: (MD_Keywords) keyword: ICSU-WDS > International Council for Science - World Data System type: (MD_KeywordTypeCode) project thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Project Keywords date: (CI_Date) date: 2020-01-09 dateType: (CI_DateTypeCode) publication edition: 9.1 citedResponsibleParty: (CI_ResponsibleParty) organisationName: NASA Goddard Space Flight Center, Earth Science Data and Information System contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords name: Global Change Master Directory (GCMD) Keywords description: The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) custodian descriptiveKeywords: (MD_Keywords) keyword: High Latitude Magnetosphere keyword: Magnetosphere (Other) type: (MD_KeywordTypeCode) place thesaurusName: (CI_Citation) title: NASA/GCMD Earth Science Keywords date: (unknown) descriptiveKeywords: (MD_Keywords) keyword: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce keyword: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce type: (MD_KeywordTypeCode) dataCentre thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Data Center Keywords date: (CI_Date) date: 2020-01-09 dateType: (CI_DateTypeCode) publication edition: 9.1 citedResponsibleParty: (CI_ResponsibleParty) organisationName: NASA Goddard Space Flight Center, Earth Science Data and Information System contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords name: Global Change Master Directory (GCMD) Keywords description: The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) custodian resourceConstraints: (MD_Constraints) 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, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. resourceConstraints: (MD_LegalConstraints) useConstraints: (MD_RestrictionCode) otherRestrictions otherConstraints: Use Constraints: None resourceConstraints: (MD_LegalConstraints) accessConstraints: (MD_RestrictionCode) otherRestrictions otherConstraints: Access Constraints: No Constraints language: eng; USA topicCategory: (MD_TopicCategoryCode) geoscientificInformation extent: (EX_Extent) geographicElement: (EX_GeographicBoundingBox) westBoundLongitude: -180.00 eastBoundLongitude: 180.00 southBoundLatitude: -90.00 northBoundLatitude: 90.00 temporalElement: (EX_TemporalExtent) extent: TimePeriod: beginPosition: 1957-01-01 endPosition: return to top distributionInfo: (MD_Distribution) distributionFormat: (MD_Format) name: ASCII version: (unknown) distributor: (MD_Distributor) distributorContact: (CI_ResponsibleParty) individualName: Justin Mabie organisationName: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce positionName: Space and Terrestrial Weather Specialist contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (303) 497-6135 facsimile: (303) 497-6513 address: (CI_Address) deliveryPoint: 325 Broadway, Mail Code E/GC4 city: Boulder administrativeArea: CO postalCode: 80305-3328 country: USA electronicMailAddress: Justin.Mabie@noaa.gov role: (CI_RoleCode) pointOfContact distributionOrderProcess: (MD_StandardOrderProcess) fees: None orderingInstructions: Ordering Instructions: Data may be downloaded for no cost transferOptions: (MD_DigitalTransferOptions) onLine: (CI_OnlineResource) linkage: ftp://ftp.ngdc.noaa.gov/STP/GEOMAGNETIC_DATA/INDICES/AURORAL_ELECTROJET protocol: ftp name: Geomagnetic Data/Indices/Auroral Electroject description: ftp site function: (CI_OnLineFunctionCode) download onLine: (CI_OnlineResource) linkage: http://swdcwww.kugi.kyoto-u.ac.jp/aedir/index.html protocol: http name: WDC-C2 KYOTO AE index service description: Home page for the World Data Center for Geomagnetism with links to the data function: (CI_OnLineFunctionCode) information onLine: (CI_OnlineResource) linkage: ftp://ftp.ngdc.noaa.gov/STP/GEOMAGNETIC_DATA/INDICES/AURORAL_ELECTROJET onLine: (CI_OnlineResource) linkage: http://swdcwww.kugi.kyoto-u.ac.jp/aedir/index.html return to top dataQualityInfo: (DQ_DataQuality) scope: (DQ_Scope) level: (MD_ScopeCode) repository levelDescription: (MD_ScopeDescription) other: NOAA National Centers for Environmental Information lineage: (LI_Lineage) processStep: (LE_ProcessStep) 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. dateTime: DateTime: 2015-04-22T00:00:00 return to top metadataMaintenance: (MD_MaintenanceInformation) maintenanceAndUpdateFrequency: (MD_MaintenanceFrequencyCode) annually maintenanceNote: This metadata was automatically generated from the Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata standard (version FGDC-STD-012-2002) using the 2012-08-08 version of the FGDC RSE to ISO 19115-2 transform. maintenanceNote: Translated from FGDC 2012-10-10T11:06:47.533-06:00 maintenanceNote: This record was automatically modified on 2015-09-18 to include references to NCEI where applicable. contact: (CI_ResponsibleParty) organisationName: NOAA National Centers for Environmental Information positionName: Metadata Specialist role: (CI_RoleCode) editor contact: (CI_ResponsibleParty) individualName: Justin Mabie organisationName: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce positionName: Space and Terrestrial Weather Specialist contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (303) 497-6135 facsimile: (303) 497-6513 address: (CI_Address) deliveryPoint: 325 Broadway, Mail Code E/GC4 city: Boulder administrativeArea: CO postalCode: 80305-3328 country: USA electronicMailAddress: Justin.Mabie@noaa.gov role: (CI_RoleCode) pointOfContact |