{
  "Spase": {
    "xmlns:xsi": "http://www.w3.org/2001/XMLSchema-instance",
    "xmlns": "http://www.spase-group.org/data/schema",
    "xsi:schemaLocation": "http://www.spase-group.org/data/schema http://www.spase-group.org/data/schema/spase-2_6_0.xsd",
    "Version": "2.6.0",
    "NumericalData": {
      "ResourceID": "spase://NSF/NumericalData/SouthernSECS/Magnetometer/EICS/PT10S",
      "ResourceHeader": {
        "ResourceName": "Southern Spherical Elementary Currents Systems (SECS) technique Southern Hemisphere Equivalent Ionospheric Currents (EICs) derived at 10 sec Resolution in Geographic Coordinates",
        "AlternateName": "Southern Hemisphere Equivalent Ionospheric Current data",
        "DOI": "https://doi.org/10.48322/ndpn-7v30",
        "ReleaseDate": "2024-07-10T00:00:00.000",
        "RevisionHistory": {
          "RevisionEvent": [
            {
              "ReleaseDate": "2024-06-20T00:00:00.000",
              "Note": "Created metadata. JMW"
            },
            {
              "ReleaseDate": "2024-07-10T00:00:00.000",
              "Note": "Added DOI. JMW"
            }
          ]
        },
        "Description": "The Equivalent Ionospheric Currents (EICs) data set contains horizontal ionospheric current data (Jx and Jy) derived using the SECS technique [Amm and Viljanen, Earth Planets Space, v. 51 pp. 431-440, 1999]. Positive Jx points to the geographic north pole. Positive Jy points to geographic east. The location of these currents is in geographic coordinates at 10s resolution. The distribution of these currents is not the same as the spherical elementary current amplitudes. The UT and date are obtained from the file name. For more information see Weygand et al. J. Geophys. Res. 116, A03305, doi:10.1029/2010JA016177, 2011.",
        "Acknowledgement": "Dr. M.D. Hartinger; Dr. J.M. Weygand; Magnetosphere Ionosphere Science Team (MIST), British Antarctic Survey (BAS), GeoForschungsZentrum (GFZ), and the Automatic Geophysical Observatories (AGO)",
        "PublicationInfo": {
          "Authors": "Weygand, J.M. and M. Hartinger",
          "PublicationDate": "2024-06-20T00:00:00.000",
          "PublishedBy": "University of California, Los Angeles"
        },
        "Funding": {
          "Agency": "NSF-NERC",
          "Project": "Collaborative Research - Conjugate Experiment to Investigate the Sources of High-Latitude Magnetic Perturbations in the Coupled Solar Wind-Magnetosphere-Ionosphere-Ground System",
          "AwardNumber": "2027190"
        },
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/Michael.Hartinger",
            "Role": "PrincipalInvestigator"
          },
          {
            "PersonID": "spase://SMWG/Person/James.M.Weygand",
            "Role": "Scientist"
          },
          {
            "PersonID": "spase://SMWG/Person/James.M.Weygand",
            "Role": "MetadataContact"
          }
        ],
        "InformationURL": [
          {
            "Name": "Journal of Earth, Planets, and Space article on the SECS technique",
            "URL": "https://doi.org/10.1029/2009JA014832",
            "Description": "Research Article on the SECS technique."
          },
          {
            "Name": "Journal of Geophysical Research article on the SECS technique as Applied to North America",
            "URL": "https://doi.org/10.1029/2010JA016177",
            "Description": "Research Article on the SECS technique applied to North America and Greenland."
          }
        ]
      },
      "AccessInformation": {
        "RepositoryID": "spase://SMWG/Repository/SECS",
        "Availability": "Online",
        "AccessRights": "Open",
        "AccessURL": {
          "Name": "Spherical Elementary Currents Systems (SECS) dataset",
          "URL": "http://vmo.igpp.ucla.edu/data1/SECS/",
          "Description": "Equivalent ionsheric current data produced over Antarctica."
        },
        "Format": "Text",
        "Acknowledgement": "Dr. M.D. Hartinger; Dr. J.M. Weygand; MIST, BAS, NJIT, and GFZ"
      },
      "ProcessingLevel": "Uncalibrated",
      "ProviderResourceName": "THEMIS",
      "ProviderProcessingLevel": "Numerical Data",
      "InstrumentID": "spase://NSF/Instrument/Ground/SouthernSECS/Magnetometer",
      "MeasurementType": "MagneticField",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "2015-01-01T00:00:00",
          "StopDate": "2016-12-31T23:59:59",
          "Note": "Universal time of the data is given in the filename."
        },
        "Cadence": "PT10S"
      },
      "Keyword": [
        "10 sec",
        "ground magnetometer data",
        "equivalent ionospheric currents",
        "spherical elementary current systms"
      ],
      "Parameter": [
        {
          "Name": "Geographic Location of Equivalent Ionospheric Current",
          "ParameterKey": "geo_loc",
          "Description": "These data are the geographic location in units of degrees of the derived equivalent ionospheric current at 10 s resolution. The Altitude of the current vector is 100 km above the surface of the Earth.",
          "Caveats": "The date and time are obtained from the file name.",
          "Units": "degrees",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Spherical",
            "CoordinateSystemName": "GEO"
          },
          "Structure": {
            "Size": "2",
            "Description": "Geographic Latitude and Longitude of the derived equivalent ionospheric current value.",
            "Element": [
              {
                "Name": "Geographic Latitude",
                "Qualifier": "DirectionAngle.ElevationAngle",
                "Index": "1",
                "Units": "degrees",
                "ValidMin": "0",
                "ValidMax": "90"
              },
              {
                "Name": "Geographic Longitude",
                "Qualifier": "DirectionAngle.AzimuthAngle",
                "Index": "2",
                "Units": "degrees",
                "ValidMin": "0",
                "ValidMax": "360"
              }
            ]
          },
          "Support": {
            "Qualifier": "Vector",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Equivalent Ionospheric Currents (Jx and Jy)",
          "ParameterKey": "Jx_Jy",
          "Description": "These data are the Equivalent Ionospheric Currents (only the currents horizontal to the surface of the Earth: Jx and Jy) in units of mA/m at 10 s resolution. The Altitude of the current vector is 100 km above the surface of the Earth.",
          "Caveats": "The date and time are obtained from the file name. These are not the Hall currents, but a combination of the Hall and Pederson currents.",
          "Units": "mA/m",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Spherical",
            "CoordinateSystemName": "GEO"
          },
          "Structure": {
            "Size": "2",
            "Description": "Jx of the derived equivalent ionospheric current value. Positive Jx points to the geographic north pole. Positive Jy points to geographic east.",
            "Element": [
              {
                "Name": "Jx",
                "Qualifier": "Component.I",
                "Index": "1",
                "Units": "mA/m",
                "ValidMin": "-1e8",
                "ValidMax": "1e8"
              },
              {
                "Name": "Jy",
                "Qualifier": "Component.J",
                "Index": "2",
                "Units": "mA/m",
                "ValidMin": "-1e8",
                "ValidMax": "1e8"
              }
            ]
          },
          "Support": {
            "Qualifier": "Vector",
            "SupportQuantity": "Other"
          }
        }
      ]
    }
  }
}