{
  "Spase": {
    "xmlns": "http://www.spase-group.org/data/schema",
    "xmlns:xsi": "http://www.w3.org/2001/XMLSchema-instance",
    "xsi:schemaLocation": "http://www.spase-group.org/data/schema http://www.spase-group.org/data/schema/spase-2_6_1.xsd",
    "_Note": "Nodes prefixed with a _ are not valid SPASE, but are included for debugging. Values prefixed with a x_ are not valid SPASE but may considered for addition for completeness.",
    "Version": "2.6.1",
    "_MasterURL": "https://cdaweb.gsfc.nasa.gov/pub/software/cdawlib/0JSONS/thg_l2_mag_svs_00000000_v01.json (from all.xml)",
    "NumericalData": {
      "ResourceID": "spase://NASA/NumericalData/THEMIS/Ground/Savissivik/Magnetometer/PT20S",
      "_ResourceID": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json",
      "ResourceHeader": {
        "ResourceName": "Higher latitude chain (Lat 76.0, Long 294.9), Ground-based Vector Magnetic Field at Savissivik, Greenland, 20 sec, DMI network",
        "_ResourceName": "Source: Master/CDFglobalAttributes/Logical_source_description",
        "AlternateName": "thg_l2_mag_svs",
        "_AlternateName": "Source: Master/CDFglobalAttributes/Logical_source",
        "Description": "Part of the Technical University of Denmark ground magnetometer network. ",
        "_Description": "Source: Master/CDFglobalAttributes/TEXT",
        "Acknowledgement": "DTU Space - National Space Institute, Denmark; Danish Meteorological Institute, Lyngbyvej 100, DK-2100 Copenhagen",
        "_Acknowledgement": "Source: Master/CDFglobalAttributes/Acknowledgement",
        "_Rights": {
          "Name": "SPDX",
          "Description": "Creative Commons Zero v1.0 Universal",
          "URL": "https://spdx.org/licenses/CC0-1.0.html",
          "SchemeURI": "https://spdx.org/licenses/"
        },
        "InformationURL": [
          {
            "URL": "http://www.space.dtu.dk",
            "Name": "DTU Department of Space Research and Space Technology home page",
            "Description": "Information about the Technical University of Denmark (DTU) Department of Space Research and Space Technology can be found at the",
            "_Note": "URL also in all.xml. Using master."
          },
          {
            "URL": "https://www.space.dtu.dk/english/research/scientific_data_and_models/magnetic-ground-stations",
            "Name": "DTU Space Magnetic Ground Stations overview page",
            "Description": "Network information can be found at the",
            "_Note": "URL also in all.xml. Using master."
          },
          {
            "URL": "https://themis.ssl.berkeley.edu/index.shtml",
            "Name": "THEMIS home page",
            "Description": "Further information about the Time History of Events and Macroscale Interactions During Substorms (THEMIS) mission can be found at the",
            "_Note": "URL also in all.xml. Using master."
          },
          {
            "URL": "https://themis.ssl.berkeley.edu/instrument_gmags.shtml",
            "Name": "THEMIS GMAG instrument information page",
            "Description": "Information about the Fluxgate Magnetometers (GMAGS) can be found at the",
            "_Note": "URL also in all.xml. Using master."
          },
          {
            "URL": "https://themis.ssl.berkeley.edu/data/themis/thg/greenland_gmag/l2/svs/",
            "Name": "THEMIS ftp site",
            "Description": "Site-specific data is archived at the",
            "_Note": "URL also in all.xml. Using master."
          },
          {
            "Name": "Technical University of Denmark Web Site",
            "URL": "https://www.space.dtu.dk/English/Research/Scientific_data_and_models/Magnetic_Ground_Stations.aspx",
            "Description": "Main menu for access to magnetic field data",
            "_Note": "Source: InformationURL.json"
          }
        ]
      },
      "Caveats": "The geomagnetic information available at our web-pages is primarily intended for the non-commercial scientific community, educational purposes, and the general public. Commercial users of our services are urged to contact us to establish an agreement of use. As part of an agreement we normally offer to construct exclusive web-pages specifically for the application in question. We accept no liability for loss or damages of any kind resulting from this or from errors or inaccuracies in the data.",
      "_Caveats": "Source: Master/CDFglobalAttributes/Rules_of_use",
      "DOI": "https://doi.org/10.48322/bq1b-jj23",
      "_DOI": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json",
      "AccessInformation": [
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: R. Behlke and A.N. Willer at DTU Space - National Sapce Institute, Denmark",
          "Format": [
            "CDF"
          ],
          "Style": "Listing",
          "AccessURL": {
            "Name": "HTTPS from SPDF",
            "URL": "https://cdaweb.gsfc.nasa.gov/pub/data/themis/thg/greenland_gmag/l2/svs",
            "Description": "In CDF via HTTP from CDAWeb",
            "AccessFilenameTemplate": "thg_l2_mag_svs_%Y%m%d_%Q.cdf",
            "AccessDirectoryTemplate": "%Y",
            "ProductKey": "THG_L2_MAG_SVS"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: R. Behlke and A.N. Willer at DTU Space - National Sapce Institute, Denmark",
          "Format": [
            "CDF"
          ],
          "Style": "Listing",
          "AccessURL": {
            "Name": "FTPS from SPDF",
            "URL": "ftps://cdaweb.gsfc.nasa.gov/pub/data/themis/thg/greenland_gmag/l2/svs",
            "Description": "In CDF via HTTP from CDAWeb",
            "AccessFilenameTemplate": "thg_l2_mag_svs_%Y%m%d_%Q.cdf",
            "AccessDirectoryTemplate": "%Y",
            "ProductKey": "THG_L2_MAG_SVS"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: R. Behlke and A.N. Willer at DTU Space - National Sapce Institute, Denmark",
          "Format": [
            "CDF",
            "CSV",
            "GIF",
            "NetCDF",
            "PNG",
            "PS",
            "PDF",
            "XML",
            "x_Script.IDL",
            "x_Script.Python",
            "Text.ASCII",
            "x_WAV"
          ],
          "AccessURL": {
            "Name": "CDAWeb Web Service",
            "URL": "https://cdaweb.gsfc.nasa.gov/WebServices/",
            "Style": "WebService",
            "Description": "Instructions for using web services to access this dataset an other other metadata and options for CDAWeb datasets. The ProductKey here corresponds to the query parameter 'dataset' in the tables at the AccessURL in a dataset-related request can be made.",
            "ProductKey": "THG_L2_MAG_SVS"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: R. Behlke and A.N. Willer at DTU Space - National Sapce Institute, Denmark",
          "Format": [
            "CDF",
            "GIF",
            "PDF",
            "Text.ASCII",
            "x_WAV"
          ],
          "AccessURL": {
            "Name": "CDAWeb Web Service user interface",
            "URL": "https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&dataset=THG_L2_MAG_SVS",
            "Style": "WebService",
            "ProductKey": "THG_L2_MAG_SVS",
            "Description": "Web service user interface for this product."
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: R. Behlke and A.N. Willer at DTU Space - National Sapce Institute, Denmark",
          "Format": [
            "x_Script.IDL",
            "x_Script.Python"
          ],
          "AccessURL": {
            "Name": "CDAWeb Python Script",
            "URL": "https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/THG_L2_MAG_SVS/clientLibraryExample/",
            "ProductKey": "THG_L2_MAG_SVS",
            "Style": "WebService",
            "Description": "Web service that generates a Python script to access this product."
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/SSCWeb. Please also acknowledge the data producer: R. Behlke and A.N. Willer at DTU Space - National Sapce Institute, Denmark",
          "Format": [
            "HTML"
          ],
          "AccessURL": {
            "Name": "4D Orbit Viewer",
            "URL": "https://sscweb.gsfc.nasa.gov/4dorbit/?sc=THG_L2_MAG_SVS",
            "ProductKey": "THG_L2_MAG_SVS",
            "Style": "x_Visualization",
            "Description": "Web Service to this product."
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: R. Behlke and A.N. Willer at DTU Space - National Sapce Institute, Denmark",
          "Format": [
            "CSV",
            "JSON",
            "Binary"
          ],
          "AccessURL": {
            "Name": "CDAWeb HAPI Server",
            "URL": "https://hapi-server.org/servers/#server=CDAWeb&dataset=THG_L2_MAG_SVS",
            "Style": "HAPI",
            "ProductKey": "THG_L2_MAG_SVS",
            "Description": "Web Service to this product using the HAPI interface."
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: R. Behlke and A.N. Willer at DTU Space - National Sapce Institute, Denmark",
          "Format": [
            "x_Script.IDL",
            "x_Script.Javascript",
            "x_Script.MATLAB",
            "x_Script.Python",
            "x_Script.Autoplot",
            "x_Script.curl",
            "x_Script.wget"
          ],
          "AccessURL": {
            "Name": "CDAWeb HAPI Script in Multiple Languages",
            "URL": "https://hapi-server.org/servers/#server=CDAWeb&dataset=THG_L2_MAG_SVS&return=script",
            "Style": "HAPI",
            "ProductKey": "THG_L2_MAG_SVS",
            "Description": "Web Service user interface that generates scripts in IDL, Javascript, MATLAB, Python, Autoplot, curl, wget to access this product. See https://hapi-server.org/servers/api for the API."
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: R. Behlke and A.N. Willer at DTU Space - National Sapce Institute, Denmark",
          "Format": [
            "PNG",
            "PDF",
            "SVG"
          ],
          "AccessURL": {
            "Name": "HAPI visualizations",
            "URL": "https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=THG_L2_MAG_SVS&format=gallery",
            "Style": "x_Visualization",
            "ProductKey": "THG_L2_MAG_SVS",
            "Description": "Web Service that generates plots. See https://hapi-server.org/plot/ for the API."
          }
        }
      ],
      "_AccessInformation": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "2007-01-01T00:00:00Z",
          "StopDate": "2025-06-11T00:00:00Z"
        },
        "_TemporalDescription": "Generated from all.xml/@timerange_start and all.xml/@timerange_stop"
      },
      "Keyword": [
        "THEMIS Ground Based Observatory (from all.xml/observatory/description/@short)",
        "Savissivik, Greenland (from all.xml/instrument/description/@short)",
        "Space Physics (from Master/CDFglobalAttributes/Discipline)",
        "Magnetospheric Science (from Master/CDFglobalAttributes/Discipline)",
        "Ionospheric Science (from Master/CDFglobalAttributes/Discipline)",
        "THG_L2 (from Master/CDFglobalAttributes/Source_name)",
        "THEMIS Ground Based Observatory (from Master/CDFglobalAttributes/Source_name)",
        "MAG (from Master/CDFglobalAttributes/Data_type)",
        "SVS (from all.xml/instrument/@ID)"
      ],
      "ObservedRegion": [
        "Earth.NearSurface.Ionosphere",
        "Earth.Surface"
      ],
      "_ObservedRegion": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ObservedRegion.json",
      "ProcessingLevel": null,
      "_ProcessingLevel": "Processing level is not available in the master file; it should be there instead of, say, https://github.com/rweigel/cdawmeta-spase/blob/main/ProcessingLevel.json",
      "InstrumentID": "spase://SMWG/Instrument/Ground/Savissivik/Magnetometer",
      "MeasurementType": "MagneticField",
      "Parameter2": [
        {
          "Name": "thg_mag_svs_Epoch",
          "ParameterKey": "thg_mag_svs_epoch",
          "Description": "CATDESC: 'thg_mag_svs_Epoch'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.'",
          "Units": null,
          "Support": {
            "Qualifier": "Scalar",
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "B in HEZ Components",
          "ParameterKey": "thg_mag_svs",
          "Description": "Master CDF CATDESC: 'Magnetic field variation B in HEZ vector components'. Master CDF VAR_NOTES: 'Rotated from geographic XYZ components using declination provided by TGU.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thg_mag_svs_epoch.'",
          "Units": [
            "nT",
            "nT",
            "nT"
          ],
          "FillValue": "NaN",
          "Structure": {
            "Size": [
              3
            ]
          }
        },
        {
          "Name": "thg_mag_svs_time",
          "ParameterKey": "thg_mag_svs_time",
          "Description": "Master CDF CATDESC: 'thg_mag_svs_time,.UTC, in seconds since 01-Jan-1970 00:00:00'. Master CDF VAR_NOTES: 'Unleaped seconds'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thg_mag_svs_epoch.'",
          "Units": "sec",
          "FillValue": "NaN"
        },
        {
          "Name": "H component of B",
          "ParameterKey": "thg_magh_svs",
          "Description": "Master CDF CATDESC: '---> H - Local magnetic North component of B'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thg_mag_svs_epoch.'",
          "Units": "nT",
          "FillValue": -1e+30
        },
        {
          "Name": "E component of B",
          "ParameterKey": "thg_magd_svs",
          "Description": "Master CDF CATDESC: '---> E - Local magnetic East component of B'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thg_mag_svs_epoch.'",
          "Units": "nT",
          "FillValue": -1e+30
        },
        {
          "Name": "Z component of B",
          "ParameterKey": "thg_magz_svs",
          "Description": "Master CDF CATDESC: '---> Z - Local vertical down component of B'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thg_mag_svs_epoch.'",
          "Units": "nT",
          "FillValue": -1e+30
        }
      ]
    }
  }
}