U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

  1. Home

Auroral Electrojet Index Designed to Provide a Global Measure, Hourly Intervals, of Auroral Zone Magnetic Activity

Data provided by  National Oceanic and Atmospheric Administration

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.

About this Dataset

Updated: 2024-02-22
Metadata Last Updated: 2025-11-19T15:45:17.719Z
Date Created: N/A
Data Provided by:
Dataset Owner: N/A

Access this data

View JSON data
Contact dataset owner Access URL
Table representation of structured data
Title Auroral Electrojet Index Designed to Provide a Global Measure, Hourly Intervals, of Auroral Zone Magnetic Activity
Description 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.
Modified 2025-11-19T15:45:17.719Z
Publisher Name N/A
Contact N/A
Keywords EARTH SCIENCE > SOLID EARTH > Geomagnetism > Geomagnetic Indices , Space Physics > Magnetospheric Science , Indices, AE , Geomagnetism , ICSU-WDS > International Council for Science - World Data System , Global , DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce , DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce , geoscientificInformation 
{
    "identifier": "gov.noaa.ngdc.stp.indices:G00115",
    "accessLevel": "public",
    "contactPoint": {
        "@type": "vcard:Contact",
        "fn": "Your contact point",
        "hasEmail": "mailto:[email protected]"
    },
    "programCode": [
        "010:000"
    ],
    "landingPage": "",
    "title": "Auroral Electrojet Index Designed to Provide a Global Measure, Hourly Intervals, of Auroral Zone Magnetic Activity",
    "description": "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\n                    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.",
    "language": "",
    "distribution": [
        {
            "@type": "dcat:Distribution",
            "mediaType": "application\/json",
            "accessURL": "https:\/\/www.ncei.noaa.gov\/metadata\/geoportal\/\/rest\/metadata\/item\/gov.noaa.ngdc.stp.indices%3AG00115"
        },
        {
            "@type": "dcat:Distribution",
            "mediaType": "text\/html",
            "accessURL": "https:\/\/www.ncei.noaa.gov\/metadata\/geoportal\/\/rest\/metadata\/item\/gov.noaa.ngdc.stp.indices%3AG00115\/html"
        },
        {
            "@type": "dcat:Distribution",
            "mediaType": "application\/xml",
            "accessURL": "https:\/\/www.ncei.noaa.gov\/metadata\/geoportal\/\/rest\/metadata\/item\/gov.noaa.ngdc.stp.indices%3AG00115\/xml"
        }
    ],
    "bureauCode": [
        "010:04"
    ],
    "modified": "2025-11-19T15:45:17.719Z",
    "publisher": {
        "@type": "org:Organization",
        "name": "Your Publisher"
    },
    "theme": "",
    "keyword": [
        "EARTH SCIENCE > SOLID EARTH > Geomagnetism > Geomagnetic Indices",
        "Space Physics > Magnetospheric Science",
        "Indices, AE",
        "Geomagnetism",
        "ICSU-WDS > International Council for Science - World Data System",
        "Global",
        "DOC\/NOAA\/NESDIS\/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce",
        "DOC\/NOAA\/NESDIS\/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce",
        "geoscientificInformation"
    ]
}