{
  "Spase": {
    "xmlns": "http://www.spase-group.org/data/schema",
    "xmlns:xsi": "http://www.w3.org/2001/XMLSchema-instance",
    "xsi:schemaLocation": "https://www.spase-group.org/data/schema  https://spase-group.org/data/schema/spase-2.7.2.xsd",
    "Version": "2.7.2",
    "MetadataRightsList": {
      "Rights": {
        "SchemeURI": "https://spdx.org/licenses/",
        "RightsIdentifierScheme": "SPDX",
        "RightsIdentifier": "CC0-1.0",
        "RightsURI": "https://spdx.org/licenses/CC0-1.0.html",
        "RightsName": "Creative Commons Zero v1.0 Universal",
        "Note": "CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions"
      }
    },
    "NumericalData": {
      "ResourceID": "spase://SMWG/NumericalData/ICON/EUV/L3/Climatology-Daytime-Oplus/P10D",
      "NamingAuthority": "NASA",
      "ResourceType": "NumericalData",
      "ResourceHeader": {
        "ResourceName": "ICON Extreme Ultraviolet Daytime Oplus Images ",
        "AlternateName": "EUV Daytime Oplus Images",
        "ReleaseDate": "2026-08-05T00:00:00Z",
        "RevisionHistory": {
          "RevisionEvent": {
            "ReleaseDate": "2026-08-05T00:00:00Z",
            "Note": "First release. JMW."
          }
        },
        "Description": "ICON Daytime Oplus climatology. In this, 48-day windows of data \n     from the L2.6 v03 product are collected into regular altitude, longitude, latitude, and local time bins.\n     Uncertainty weighted mean and standard deviations of each parameter are reported in this file. \n     Note that NMF2 and HMF2 data do not have an altitude component, OPLUS data has an altitude component. \n     This single file spans the whole mission",
        "Acknowledgement": "National Aeronautics and Space Administration; Dr. Jerry Edelstein; Dr. Thomas J. Immel",
        "PublicationInfo": {
          "Authors": "Edelstein, J.",
          "PublicationDate": "2026-06-16T00:00:00",
          "PublishedBy": "Space Physics Data Facility"
        },
        "Funding": [
          {
            "Agency": "National Aeronautics and Space Administration",
            "Project": "Explorers Program",
            "AwardNumber": "NNG12FA44C"
          },
          {
            "Agency": "National Aeronautics and Space Administration",
            "Project": "Explorers Program",
            "AwardNumber": "contracts NNG12FA42I"
          }
        ],
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/Jerry.Edelstein",
            "Role": "PrincipalInvestigator"
          },
          {
            "PersonID": "spase://SMWG/Person/James.M.Weygand",
            "Role": "MetadataContact"
          }
        ],
        "InformationURL": [
          {
            "Name": "Additional information on ICON",
            "URL": "https://icon.ssl.berkeley.edu/",
            "Description": "ICON spacecraft Homepage."
          },
          {
            "Name": "Design and Performance of the ICON EUV Spectrograph",
            "URL": "https://doi.org/10.1007/s11214-017-0384-2",
            "Description": "Space Science Reviews, 212(1-2), pp.631-643. DOI: 10.1007/s11214-017-0384-2"
          }
        ]
      },
      "AccessInformation": [
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb",
          "Availability": "Online",
          "AccessRights": "Open",
          "RightsList": {
            "Rights": {
              "SchemeURI": "https://spdx.org/licenses/",
              "RightsIdentifierScheme": "SPDX",
              "RightsIdentifier": "CC0-1.0",
              "RightsURI": "https://spdx.org/licenses/CC0-1.0.html",
              "RightsName": "Creative Commons Zero v1.0 Universal",
              "Note": "CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products"
            }
          },
          "AccessURL": {
            "Name": "CDAWeb HAPI Server",
            "URL": "https://cdaweb.gsfc.nasa.gov/hapi",
            "Style": "HAPI",
            "ProductKey": "ICON_L3-3_Climatology-Daytime-Oplus",
            "Description": "Web Service to this product using the HAPI interface."
          },
          "Format": "NetCDF",
          "Acknowledgement": "National Aeronautics and Space Administration; Dr. Roderick A. Heelis; Dr. Thomas Immel."
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb",
          "Availability": "Online",
          "AccessRights": "Open",
          "RightsList": {
            "Rights": {
              "SchemeURI": "https://spdx.org/licenses/",
              "RightsIdentifierScheme": "SPDX",
              "RightsIdentifier": "CC0-1.0",
              "RightsURI": "https://spdx.org/licenses/CC0-1.0.html",
              "RightsName": "Creative Commons Zero v1.0 Universal",
              "Note": "CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products"
            }
          },
          "AccessURL": [
            {
              "Name": "HTTPS from SPDF",
              "URL": "https://spdf.gsfc.nasa.gov/pub/data/icon/l3/climatology/",
              "ProductKey": "ICON_L3-3_Climatology-Daytime-Oplus",
              "Description": "Access to Data in NetCDF Format via https from SPDF"
            },
            {
              "Name": "CDAWeb",
              "URL": "https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=ICON_L3-3_Climatology-Daytime-Oplus&index=sp_phys",
              "ProductKey": "ICON_L3-3_Climatology-Daytime-Oplus",
              "Description": "Access to ASCII, NetCDF, CDF, and Plots via NASA/GSFC CDAWeb"
            }
          ],
          "Format": "NetCDF",
          "Encoding": "None",
          "Acknowledgement": "National Aeronautics and Space Administration; Dr. Roderick A. Heelis; Dr. Thomas Immel."
        }
      ],
      "ProcessingLevel": "Calibrated",
      "ProviderName": "ICON EUV team",
      "ProviderResourceName": "",
      "InstrumentID": "spase://SMWG/Instrument/ICON/EUV",
      "MeasurementType": "ImageIntensity",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "2019-12-11T11:48:29Z",
          "StopDate": "2022-11-05T07:03:28Z"
        },
        "Cadence": "PT1800S"
      },
      "ObservedRegion": [
        "Earth.NearSurface.Atmosphere",
        "Earth.NearSurface.Ionosphere"
      ],
      "Parameter": [
        {
          "Name": "Epoch Time",
          "ParameterKey": "Epoch",
          "Description": "Sample time, midpoint of exposure. Number of msec since Jan 1, 1970.",
          "Cadence": "P10D",
          "Units": "ms",
          "ValidMin": "0",
          "ValidMax": "6000000000000",
          "FillValue": "-999",
          "Support": {
            "Qualifier": "Magnitude",
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "48 day bins",
          "ParameterKey": "ICON_L33_Included_Dates",
          "Description": "Dates used in each 48 day bin, in string format, in the format: 2017-05-27.",
          "Cadence": "P10D",
          "FillValue": "-999",
          "Support": {
            "Qualifier": "Magnitude",
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "Binned HMF2",
          "ParameterKey": "ICON_L33_HMF2",
          "Description": "Binned HMF2. Height of the peak of the F2 layer from Retrieval, in WGS.",
          "Cadence": "P10D",
          "Units": "km",
          "ValidMin": "0",
          "ValidMax": "1.000000020040877e+20",
          "FillValue": "-999",
          "Support": {
            "Qualifier": "Scalar",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Binned NMF2",
          "ParameterKey": "ICON_L33_NMF2",
          "Description": "Electron density at the peak of the F2 layer from retrieval. Uncertainty-weighted mean value of NMF2, taken over all good quality L2 datapoints in a 48-day time-span, as a function of longitude, latitude, time. Derived from ICON_L26_NMF2.",
          "Cadence": "P10D",
          "Units": "1/cm^3",
          "ValidMin": "0",
          "ValidMax": "1.000000020040877e+20",
          "FillValue": "-999",
          "Particle": {
            "ParticleType": "Electron",
            "Qualifier": "Average",
            "ParticleQuantity": "NumberDensity"
          }
        },
        {
          "Name": "Binned O+",
          "ParameterKey": "ICON_L33_OPlus",
          "Description": "Uncertainty-weighted mean value of number density of O+, taken over all good quality L2 datapoints in a 48-day time-span, as a function of altitude, longitude, latitude, time. Derived from ICON_L26_OPLUS.",
          "Cadence": "P10D",
          "Units": "1/cm^3",
          "ValidMin": "0",
          "ValidMax": "1.000000020040877e+20",
          "FillValue": "-999",
          "Particle": {
            "ParticleType": "Ion",
            "Qualifier": "Average",
            "ParticleQuantity": "NumberDensity",
            "AtomicNumber": "8"
          }
        },
        {
          "Name": "Number of data points",
          "ParameterKey": "ICON_L33_Datapoints",
          "Description": "Number of data points in each 48 day average, as a function of longitude, latitude, time.",
          "Cadence": "P10D",
          "ValidMin": "0",
          "ValidMax": "000000020040877e",
          "FillValue": "-999",
          "Support": {
            "Qualifier": "Scalar",
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Sigma HMF2",
          "ParameterKey": "ICON_L33_Sigma_HMF2",
          "Description": "1 standard deviation of the good column HMF2 values used to compute the mean, as a function of longitude, latitude, time.",
          "Cadence": "P10D",
          "Units": "km",
          "ValidMin": "0",
          "ValidMax": "1.000000020040877e+20",
          "FillValue": "-999",
          "Support": {
            "Qualifier": "StandardDeviation",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Sigma HMF2",
          "ParameterKey": "ICON_L33_Sigma_NMF2",
          "Description": "Electron density at the peak of the F2 layer from retrieval. 1 standard deviation of the good column NMF2 values used to compute the mean, as a function of longitude, latitude, time.",
          "Cadence": "P10D",
          "Units": "1/cm^3",
          "ValidMin": "0",
          "ValidMax": "1.000000020040877e+20",
          "FillValue": "-999",
          "Particle": {
            "ParticleType": "Electron",
            "Qualifier": "StandardDeviation",
            "ParticleQuantity": "NumberDensity"
          }
        },
        {
          "Name": "Sigma O+",
          "ParameterKey": "ICON_L33_Sigma_OPlus",
          "Description": "1 standard deviation of the good O+ values used to compute the mean, as a function of altitude, longitude, latitude, time.",
          "Cadence": "P10D",
          "Units": "1/cm^3",
          "ValidMin": "0",
          "ValidMax": "1.000000020040877e+20",
          "FillValue": "-999",
          "Particle": {
            "ParticleType": "Ion",
            "Qualifier": "StandardDeviation",
            "ParticleQuantity": "NumberDensity",
            "AtomicNumber": "8"
          }
        },
        {
          "Name": "Altitude Bin",
          "ParameterKey": "ICON_L33_Altitude",
          "Description": "Altitude corresponding to the binned quantities, in WGS84.",
          "Cadence": "P10D",
          "Units": "km",
          "ValidMin": "-600",
          "ValidMax": "1600",
          "FillValue": "-999",
          "Support": {
            "Qualifier": "Direction",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Local Time Bin",
          "ParameterKey": "ICON_L33_LocalTime",
          "Description": "Local time binned in 0.5 hour intervals, local time +/- 0.25 hours.",
          "Cadence": "P10D",
          "Units": "hours",
          "ValidMin": "8",
          "ValidMax": "18",
          "FillValue": "-999",
          "Support": {
            "Qualifier": "Direction",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Latitude Bin",
          "ParameterKey": "ICON_L33_Latitude",
          "Description": "Latitude of the EUV data, binned in 5 degree intervals, latitude +/- 2.5 degrees. Derived from ICON_EUV_L26_Latitude.",
          "Cadence": "P10D",
          "Units": "degrees",
          "ValidMin": "-10",
          "ValidMax": "50",
          "FillValue": "-999",
          "Support": {
            "Qualifier": "Direction",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Longitude Bin",
          "ParameterKey": "ICON_L33_Longitude",
          "Description": "Longitude of the EUV data, binned in 15 degree intervals, longitude +/- 7.5 degrees. Derived from ICON_EUV_L26_Longitude.",
          "Cadence": "P10D",
          "Units": "degrees",
          "ValidMin": "0",
          "ValidMax": "360",
          "FillValue": "-999",
          "Support": {
            "Qualifier": "Direction",
            "SupportQuantity": "Positional"
          }
        }
      ]
    }
  }
}