{
  "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_2.xsd",
    "Version": "2.3.2",
    "NumericalData": {
      "ResourceID": "spase://NASA/NumericalData/Weygand/Wind/3DP/Propagated.3DP/GSE/PT60S",
      "ResourceHeader": {
        "ResourceName": "Wind 3DP Weimer Propagated 60 s Resolution in GSE Coordinates",
        "AlternateName": "Wind 3DP data",
        "DOI": "https://doi.org/10.21978/p8zs72",
        "ReleaseDate": "2021-05-31T12:34:56.789",
        "RevisionHistory": {
          "RevisionEvent": {
            "ReleaseDate": "2021-05-31T12:34:56.789",
            "Note": "Updated to SPASE Version 2.3.2 if needed, Applied quality control for DOI usage, LFB"
          }
        },
        "Description": "Wind 3DP propagated solar wind data and linearly interpolated to have the measurements on the minute at 60 s resolution data in GSE coordinates. This data set consists of propagated solar wind data that has first been propagated to a position just outside of the nominal bow shock (about 17, 0, 0 Re) and then linearly interpolated to 1 min resolution using the interp1.m function in MATLAB. The input data for this data set is a 1 min resolution processed solar wind data constructed by Dr. J.M. Weygand. The method of propagation is similar to the minimum variance technique and is outlined in Dan Weimer et al. [2003; 2004]. The basic method is to find the minimum variance direction of the magnetic field in the plane orthogonal to the mean magnetic field direction. This minimum variance direction is then dotted with the difference between final position vector minus the original position vector and the quantity is divided by the minimum variance dotted with the solar wind velocity vector, which gives the propagation time. This method does not work well for shocks and minimum variance directions with tilts greater than 70 degrees of the sun-earth line. This data set was originally constructed by Dr. J.M. Weygand for Prof. R.L. McPherron, who was the principle investigator of two National Science Foundation studies: GEM Grant ATM 02-1798 and a Space Weather Grant ATM 02-08501. These data were primarily used in superposed epoch studies References: Weimer, D. R. (2004), Correction to ‘‘Predicting interplanetary magnetic field (IMF) propagation delay times using the minimum variance technique,’’ J. Geophys. Res., 109, A12104, doi:10.1029/2004JA010691. Weimer, D.R., D.M. Ober, N.C. Maynard, M.R. Collier, D.J. McComas, N.F. Ness, C. W. Smith, and J. Watermann (2003), Predicting interplanetary magnetic field (IMF) propagation delay times using the minimum variance technique, J. Geophys. Res., 108, 1026, doi:10.1029/2002JA009405. There are now two version of this data set. An off set has been found in the Wind MFI Bz component that is present after November 2004. Version 2 has this offset removed. Prof. R.L. McPherron determined the correction to be Bz = Bz - (-0.000000130406219.*odoy.*odoy + 0.000576303146.*odoy + 0.679940509 + 0.3215*cos(2*pi*(doy-171)/366)) where doy is the day of the year in units of days and odoy is the days sinces Jan 1, 1999 00:00:00 UT in units of days.",
        "Acknowledgement": "NASA;Robert.P.Lin",
        "PublicationInfo": {
          "Authors": "Weygand, James M.; & McPherron, Robert L.",
          "PublicationDate": "2006-01-01T00:00:00",
          "PublishedBy": "University of California, Los Angeles"
        },
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/Robert.P.Lin",
            "Role": "PrincipalInvestigator"
          },
          {
            "PersonID": "spase://SMWG/Person/James.M.Weygand",
            "Role": "MetadataContact"
          }
        ],
        "InformationURL": [
          {
            "Name": "Wind 3DP Instrument",
            "URL": "http://sprg.ssl.berkeley.edu/wind3dp/esahome.html",
            "Description": "Wind 3DP"
          },
          {
            "Name": "Solar Wind Propagation Information",
            "URL": "http://www.igpp.ucla.edu/jweygand/htmls/Propagated_SW.html",
            "Description": "Solar wind archive at UCLA. This archive provides a list of available data resources and available time ranges."
          }
        ],
        "PriorID": [
          "spase://VMO/NumericalData/Weygand/Wind/3DP/Propagated.3DP/GSE/PT60S",
          "spase://VSPO/NumericalData/Weygand/Wind/3DP/Propagated.3DP/GSE/PT60S"
        ]
      },
      "AccessInformation": {
        "RepositoryID": "spase://SMWG/Repository/UCLA/VMO",
        "Availability": "Online",
        "AccessRights": "Open",
        "AccessURL": {
          "Name": "IGPP UCLA ISEE SWE Data JMW Propagateded Archive",
          "URL": "http://vmo.igpp.ucla.edu/data1/Weygand/PropagatedSolarWindGSE/weimer/Wind/plasma/"
        },
        "Format": "Text",
        "Encoding": "ASCII",
        "Acknowledgement": "NASA;Ronald.P.Lepping;James.M.Weygand"
      },
      "ProcessingLevel": "Calibrated",
      "ProviderResourceName": "Wind 3-D Plasma and Energetic Particle Investigation",
      "ProviderProcessingLevel": "Level-2",
      "InstrumentID": "spase://SMWG/Instrument/Wind/3DP",
      "MeasurementType": "ThermalPlasma",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "1995-01-01T00:00:00.000",
          "RelativeStopDate": "-P1Y",
          "Note": "Time format in data files is: Day Month Year Hour Minute Second (DD MM YYYY HH MM SS.SSS)"
        }
      },
      "Caveats": "There are now two versions of the Wind MFI data. Version 2 has an offset removed in the WIND MFI Bz component, which appeared after November 2004. Version 2 of the data was released October 22, 2011.",
      "Keyword": [
        "1 min",
        "solar wind",
        "magnetotail",
        "bow shock",
        "magnetopause",
        "3DP",
        "plasma data",
        "Wind",
        "Propagated solar wind data",
        "1 min",
        "solar wind",
        "magnetotail",
        "bow shock",
        "magnetopause",
        "3DP",
        "plasma data",
        "Wind",
        "Propagated solar wind data"
      ],
      "Parameter": [
        {
          "Name": "Universal Time",
          "ParameterKey": "Time",
          "Description": "Universal Time AFTER Propagation columns from left to right are: day month year hour minute sec in the format of dd mm yyyy hh mm ss.",
          "Cadence": "PT60S",
          "Structure": {
            "Size": "6",
            "Description": "Universal Time expressed using a 6-column day, month, year, hour, minute, second representation",
            "Element": [
              {
                "Name": "Day",
                "Index": "1",
                "ParameterKey": "Day"
              },
              {
                "Name": "Month",
                "Index": "2",
                "ParameterKey": "Month"
              },
              {
                "Name": "Year",
                "Index": "3",
                "ParameterKey": "Year"
              },
              {
                "Name": "Hour",
                "Index": "4",
                "ParameterKey": "Hour"
              },
              {
                "Name": "Minute",
                "Index": "5",
                "ParameterKey": "Minute"
              },
              {
                "Name": "Second",
                "Index": "6",
                "ParameterKey": "Second"
              }
            ]
          },
          "Support": {
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "Wind 3DP Thermal Speed Weimer Propagated 1 min Resolution Data in GSE Coordiates",
          "ParameterKey": "Thermal Speed",
          "Description": "Weimer propagated Wind 3DP thermal speed in GSE coordinates in units of km/s.",
          "Caveats": "Be sure you understand the instrument",
          "Cadence": "PT60S",
          "Units": "KM/S",
          "Particle": {
            "ParticleType": "Ion",
            "ParticleQuantity": "ThermalSpeed"
          }
        },
        {
          "Name": "Wind 3DP Density Weimer Propagated 1 min Resolution Data in GSE Coordiates",
          "ParameterKey": "Density",
          "Description": "Weimer propagated density data for Wind 3DP in GSE coordinates in units of number per cubic centimeter.",
          "Cadence": "PT60S",
          "Units": "#/cm^-3",
          "Particle": {
            "ParticleType": "Ion",
            "ParticleQuantity": "NumberDensity"
          }
        },
        {
          "Name": "Wind 3DP Velocity Vector Weimer Propagated 1 min Resolution Data in GSE Coordiates",
          "ParameterKey": "Velocity Vectors",
          "Description": "Weimer propagated Flow vector for Wind 3DP in GSE coordinates in units of km/s.",
          "Caveats": "Be sure you understand the instrument",
          "Cadence": "PT60S",
          "Units": "KM/S",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSE"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "VX-GSE",
                "Qualifier": "Component.I",
                "Index": "1",
                "ParameterKey": "pvxgse"
              },
              {
                "Name": "VY-GSE",
                "Qualifier": "Component.J",
                "Index": "2",
                "ParameterKey": "pvygse"
              },
              {
                "Name": "VZ-GSE",
                "Qualifier": "Component.K",
                "Index": "3",
                "ParameterKey": "pvzgse"
              }
            ]
          },
          "Particle": {
            "ParticleType": "Ion",
            "ParticleQuantity": "Velocity"
          }
        },
        {
          "Name": "Wind Spacecraft Weimer Propagated Position Vector Interpolated to 1 min Resolution in GSE Coordiates",
          "ParameterKey": "Position Vectors",
          "Description": "Weimer propagated location of the spacecraft in GSE coordinates in units of Re.",
          "Cadence": "PT60S",
          "Units": "Re",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSE"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "X-GSE",
                "Qualifier": "Component.I",
                "Index": "1",
                "ParameterKey": "pxgse"
              },
              {
                "Name": "Y-GSE",
                "Qualifier": "Component.J",
                "Index": "2",
                "ParameterKey": "pygse"
              },
              {
                "Name": "Z-GSE",
                "Qualifier": "Component.K",
                "Index": "3",
                "ParameterKey": "pzgse"
              }
            ]
          },
          "Support": {
            "SupportQuantity": "Positional"
          }
        }
      ]
    }
  }
}