{
  "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_3_1.xsd",
    "Version": "2.3.1",
    "NumericalData": {
      "ResourceID": "spase://NASA/NumericalData/SES-14/GOLD/L2/TDISK/PT8S",
      "ResourceHeader": {
        "ResourceName": "Gold Level L2 ratio of the column abundance of thermospheric O relative to N2",
        "ReleaseDate": "2020-07-07T21:15:18Z",
        "Description": "The GOLD daytime disk scan measurements are used to derive the TDISK data product, \n\t  which is the effective disk neutral temperature at a height of approximately 150 km. TDISK is derived \n\t  for each valid dayside Level 1C pixel for approximately 68 disk scan measurements performed per day \n\t  by GOLD in nominal operation.\n\t  \n\t  Algorithm heritage\n      The retrieval algorithm is an extension of those previously used to derive temperature from limb \n\t  measurements of LBH intensity from the HITS instrument (Aksnes et al., [2006]; Krywonos et al. [2012]).\n\n\t  Algorithm theoretical basis\n      GOLD measurements have a higher signal-to-noise ratio than HITS and a spectral range that includes \n\t  more of the total N2 LBH emission (132 – 162 nm). Effective neutral temperatures near ~150 km altitude \n\t  are retrieved by fitting the observed rotational structure of the N2 LBH bands using an optimal \n\t  estimation routine. Retrieved parameters also include the upper vibrational level (v’=0-6) relative \n\t  intensities (i.e. populations), a constant background, wavelength shift, and wavelength dispersion \n\t  (constant term).\n\n      References\n      Aksnes, A., R. Eastes, S. Budzien, and K. Dymond (2006), Neutral temperatures in the lower thermosphere \n\t  from N2 Lyman-Birge-Hopfield (LBH) band profiles, Geophys. Res. Lett., 33, L15103, doi:10.1029/2006GL026255.\n\n\t  Krywonos, A., D. J. Murray, R. W. Eastes, A. Aksnes, S. A. Budzien, and R. E. Daniell (2012), Remote \n\t  sensing of neutral temperatures in the Earth’s thermosphere using the Lyman-Birge-Hopfield bands of N2: \n\t  Comparisons with satellite drag data, J. Geophys. Res., 117, A09311, doi:10.1029/2011JA017226.\n\t  ",
        "Acknowledgement": "National Aeronautics and Space Administration; Dr. Richard Eastes",
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/Richard.Eastes",
            "Role": "PrincipalInvestigator"
          },
          {
            "PersonID": "spase://SMWG/Person/James.M.Weygand",
            "Role": "MetadataContact"
          }
        ],
        "InformationURL": [
          {
            "Name": "GOLD Homepage web page",
            "URL": "https://gold.cs.ucf.edu/",
            "Description": "GOLD web page with news and other information."
          },
          {
            "Name": "GOLD Missions Space Science Reviews Article",
            "URL": "https://doi.org/10.1007/s11214-017-0392-2",
            "Description": "Eastes, R.W., McClintock, W.E., Burns, A.G. et al. Space Sci. Rev. (2017) vol. 212, pp.383."
          }
        ],
        "PriorID": "spase://VSPO/NumericalData/SES-14/GOLD/L2/TDISK/PT8S"
      },
      "AccessInformation": {
        "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
        "Availability": "Online",
        "AccessRights": "Open",
        "AccessURL": [
          {
            "Name": "FTPS from SPDF (not with most browsers)",
            "URL": "ftps://spdf.gsfc.nasa.gov/pub/data/gold/level2/",
            "Description": "FTPS access to Gold Level L2 data"
          },
          {
            "Name": "HTTPS from SPDF",
            "URL": "https://spdf.gsfc.nasa.gov/pub/data/gold/level2/",
            "Description": "HTTPS access to Gold Level L2 data"
          }
        ],
        "Format": "NetCDF",
        "Acknowledgement": "Space Physics Data Facility of the NASA Goddard Space Flight Center; Robert E McGuire"
      },
      "ProcessingLevel": "Calibrated",
      "ProviderName": "GOLD",
      "ProviderResourceName": "Gold Level L2 Neutral Temperature",
      "ProviderProcessingLevel": "Level 2",
      "ProviderVersion": "1",
      "InstrumentID": "spase://SMWG/Instrument/SES-14/GOLD",
      "MeasurementType": "ImageIntensity",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "2018-10-06T00:00:00",
          "RelativeStopDate": "P1D"
        },
        "Cadence": "PT8S"
      },
      "ObservedRegion": "Earth.NearSurface.Ionosphere",
      "Keyword": [
        "",
        "O relative to N2",
        "GOLD",
        "SES-14"
      ],
      "Parameter": [
        {
          "Name": "Mask Wavelength",
          "ParameterKey": "mask_wavelength",
          "Description": "Wavelength grid for N2_LBH mask.",
          "Cadence": "PT8S",
          "Units": "nm",
          "ValidMin": "130",
          "ValidMax": "170",
          "FillValue": "9.9692e+36",
          "Wave": {
            "WaveType": "Photon",
            "Qualifier": "Scalar",
            "WaveQuantity": "Wavelength"
          }
        },
        {
          "Name": "Effective Altitude",
          "ParameterKey": "effective_altitude",
          "Description": "Effective altitude of retrieved temperature.",
          "Cadence": "PT8S",
          "Units": "km",
          "ValidMin": "0",
          "ValidMax": "1000",
          "FillValue": "9.9692e+36",
          "Support": {
            "Qualifier": "Direction",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Lookup Table",
          "ParameterKey": "lookup_table",
          "Description": "Retrieval lookup table filename.",
          "Cadence": "PT8S",
          "FillValue": " ",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Random Uncertainty in Neutral Temperature",
          "ParameterKey": "tdisk_unc_ran",
          "Description": "Random uncertainty in retrieved neutral temperature.",
          "Cadence": "PT8S",
          "Units": "K",
          "ValidMin": "0",
          "ValidMax": "100000",
          "FillValue": "9.9692e+36",
          "Particle": {
            "ParticleType": "Molecule",
            "Qualifier": "Uncertainty",
            "ParticleQuantity": "Temperature"
          }
        },
        {
          "Name": "Retrieved Wavelength Stretch Parameter",
          "ParameterKey": "wavelength_stretch",
          "Description": "Retrieved wavelength stretch parameter in each pixel.",
          "Cadence": "PT8S",
          "Units": "nm",
          "ValidMin": "0",
          "ValidMax": "10",
          "FillValue": "9.9692e+36",
          "Wave": {
            "WaveType": "Photon",
            "Qualifier": "Scalar",
            "WaveQuantity": "Wavelength"
          }
        },
        {
          "Name": "Channel",
          "ParameterKey": "channel",
          "Description": "GOLD channel (‘A’ or ‘B’).",
          "Cadence": "PT8S",
          "Support": {
            "Qualifier": "Scalar",
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Latitude",
          "ParameterKey": "latitude",
          "Description": "Pixel latitude.",
          "Cadence": "PT8S",
          "Units": "degrees",
          "ValidMin": "-90",
          "ValidMax": "90",
          "FillValue": "9.9692e+36",
          "Support": {
            "Qualifier": "Direction",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Overall Quality Flag",
          "ParameterKey": "dqi",
          "Description": "Tdisk data quality index (GOLD Public Science Data Products Guide).",
          "Cadence": "PT8S",
          "ValidMin": "0",
          "ValidMax": "2147483647",
          "FillValue": "-2147483647",
          "Support": {
            "Qualifier": "Scalar",
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Scan Start Time",
          "ParameterKey": "scan_start_time",
          "Description": "UTC start time of scan, e.g., \"2017-06-21T23:46:38.015Z\".",
          "Cadence": "PT8S",
          "Units": "date/time",
          "FillValue": "' '",
          "Support": {
            "Qualifier": "Scalar",
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "Solar Zenith Angle at 225 km",
          "ParameterKey": "solar_zenith_angle",
          "Description": "Pixel solar zenith angle.",
          "Cadence": "PT8S",
          "Units": "degrees",
          "ValidMin": "0",
          "ValidMax": "180",
          "FillValue": "9.9692e+36",
          "Support": {
            "Qualifier": "Direction",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Systematic Uncertainty in Neutral Temperature",
          "ParameterKey": "on2_unc_sys",
          "Description": "Systematic uncertainty in retrieved neutral temperature.",
          "Cadence": "PT8S",
          "Units": "K",
          "ValidMin": "0",
          "ValidMax": "5",
          "FillValue": "9.9692e+36",
          "Support": {
            "Qualifier": "Uncertainty",
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Neutral Temperature",
          "ParameterKey": "tdisk",
          "Description": "Retrieved neutral temperature.",
          "Cadence": "PT8S",
          "Units": "K",
          "ValidMin": "0",
          "ValidMax": "100000",
          "FillValue": "9.9692e+36",
          "Particle": {
            "ParticleType": "Molecule",
            "ParticleQuantity": "Temperature",
            "AtomicNumber": "14"
          }
        },
        {
          "Name": "UTC time",
          "ParameterKey": "time_utc",
          "Description": "UTC date/time string: \"2017-06-21T23:46:38.015Z\".",
          "Cadence": "PT8S",
          "Units": "date/time",
          "FillValue": "' '",
          "Support": {
            "Qualifier": "Scalar",
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "Background",
          "ParameterKey": "background",
          "Description": "Retrieved background per pixel.",
          "Cadence": "PT8S",
          "Units": "counts",
          "ValidMin": "0",
          "ValidMax": "1000",
          "FillValue": "9.9692e+36",
          "Support": {
            "Qualifier": "Scalar",
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Retrieved Wavelength Shift Parameter",
          "ParameterKey": "wavelength_shift",
          "Description": "Retrieved wavelength shift parameter in each pixel.",
          "Cadence": "PT8S",
          "Units": "nm",
          "ValidMin": "0",
          "ValidMax": "10",
          "FillValue": "9.9692e+36",
          "Wave": {
            "WaveType": "Photon",
            "Qualifier": "Scalar",
            "WaveQuantity": "Wavelength"
          }
        },
        {
          "Name": "Longitude",
          "ParameterKey": "longitude",
          "Description": "Pixel longitude.",
          "Cadence": "PT8S",
          "Units": "degrees",
          "ValidMin": "-180",
          "ValidMax": "180",
          "FillValue": "9.9692e+36",
          "Support": {
            "Qualifier": "Direction",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Retrieved Vibrational Populations",
          "ParameterKey": "vibrational_populations",
          "Description": "Retrieved temperature vibrational populations.",
          "Cadence": "PT8S",
          "ValidMin": "0",
          "ValidMax": "1",
          "FillValue": "9.9692e+36",
          "Support": {
            "Qualifier": "Scalar",
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "L1C File Name",
          "ParameterKey": "input_l1c_file",
          "Description": "L1C file name for each occultation.",
          "Cadence": "PT8S",
          "FillValue": "' '",
          "Support": {
            "Qualifier": "Scalar",
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Pixel Emission Angle",
          "ParameterKey": "emission_angle",
          "Description": "Pixel emission angle (relative to zenith).",
          "Cadence": "PT8S",
          "Units": "degrees",
          "ValidMin": "0",
          "ValidMax": "90",
          "FillValue": "9.9692e+36",
          "Support": {
            "Qualifier": "Direction",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "TDisk Quality Flag",
          "ParameterKey": "tdisk_dqi",
          "Description": "TDISK data quality index per pixel (GOLD Public Science Data Products Guide).",
          "Cadence": "PT8S",
          "ValidMin": "0",
          "ValidMax": "2147483647",
          "FillValue": "-2147483647",
          "Support": {
            "Qualifier": "Scalar",
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Mask Defining LBH Bandpass ",
          "ParameterKey": "mask_n2_lbh",
          "Description": "Wavelength mask defining LBH bandpass used in retrieval.",
          "Cadence": "PT8S",
          "ValidMin": "0",
          "ValidMax": "1",
          "FillValue": "-2147483647",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Scan Stop Time",
          "ParameterKey": "scan_stop_time",
          "Description": "UTC stop time of scan, e.g., \"2017-06-21T23:46:38.015Z\".",
          "Cadence": "PT8S",
          "Units": "date/time",
          "FillValue": "' '",
          "Support": {
            "Qualifier": "Scalar",
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "Model Uncertainty in Neutral Temperature",
          "ParameterKey": "tdisk_unc_mod",
          "Description": "Model uncertainty in retrieved neutral temperature.",
          "Cadence": "PT8S",
          "Units": "K",
          "ValidMin": "0",
          "ValidMax": "5",
          "FillValue": "9.9692e+36",
          "Support": {
            "Qualifier": "Uncertainty",
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Hemisphere Scanned",
          "ParameterKey": "hemisphere",
          "Description": "Hemisphere scanned (‘N’ or ‘S’).",
          "Cadence": "PT8S",
          "FillValue": "' '",
          "Support": {
            "Qualifier": "Scalar",
            "SupportQuantity": "Other"
          }
        }
      ]
    }
  }
}