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   <Version>2.2.2</Version>
   <NumericalData>
      <ResourceID>spase://VMO/NumericalData/WDC/San.Juan/Magnetometer/PT1M/ASCII_FORMAT</ResourceID>
      <ResourceHeader>
         <ResourceName>San Juan Magnetometer 1-min Data in ASCII Flat Table Format</ResourceName>
         <ReleaseDate>2012-05-02T12:34:56.789</ReleaseDate>
         <Description>San Juan Magnetometer data, 1-min time resoluion, in ASCII format. Magnetic Field Vector Element List: DHXYZF. Note that the list of magnetic field elements that appear in the data set may change over the course of time. For instance, many stations have shifted from DHZ to the XYZ representation of the magnetic field. The time history listed below summarizes changes in element content. A description of the WDC Data Exchange Format for CADENCE magnetic field data is included at the end of this data product description.</Description>
         <Acknowledgement>Please acknowledge: U.S. Geological Survey for providing the data observations, and the British Geological Survey, World Data Center for Geomagnetism, Edinburgh for providing access to the data.</Acknowledgement>
         <Contact>
            <PersonID>spase://SMWG/Person/Jill.Caldwell</PersonID>
            <Role>GeneralContact</Role>
            <Role>DataProducer</Role>
         </Contact>
         <Contact>
            <PersonID>spase://SMWG/Person/Carol.A.K.Finn</PersonID>
            <Role>GeneralContact</Role>
            <Role>DataProducer</Role>
         </Contact>
         <Contact>
            <PersonID>spase://SMWG/Person/Jeffrey.J.Love</PersonID>
            <Role>GeneralContact</Role>
            <Role>DataProducer</Role>
         </Contact>
         <Contact>
            <PersonID>spase://SMWG/Person/Lee.Frost.Bargatze</PersonID>
            <Role>MetadataContact</Role>
            <Role>TechnicalContact</Role>
         </Contact>
         <InformationURL>
            <Name>The Geomagnetic Data Master Catalog at the WDC for Geomagnetism, Edinburgh</Name>
            <URL>http://www.wdc.bgs.ac.uk/catalog/intro.html</URL>
            <Description>Web site for access to magnetometer data hosted by the World Data Center for Geomagnetism, Edinburgh</Description>
         </InformationURL>
         <Association>
            <AssociationID>spase://VMO/NumericalData/WDC/San.Juan/Magnetometer/PT1M/WDC_FORMAT</AssociationID>
            <AssociationType>DerivedFrom</AssociationType>
         </Association>
         <PriorID>spase://VMO/NumericalData/WDC/San.Juan/Magnetometer/PT1M/ASCII</PriorID>
      </ResourceHeader>
      <AccessInformation>
         <RepositoryID>spase://SMWG/Repository/UCLA/VMO</RepositoryID>
         <Availability>Online</Availability>
         <AccessRights>Open</AccessRights>
         <AccessURL>
            <Name>The UCLA VMO Data Repository</Name>
            <URL>http://vmo.igpp.ucla.edu/data1/WDC/MAGNETOGRAM/San.Juan/PT1M/TXT</URL>
            <Description>The Virtual Magnetospheric Observatory (VMO) Data Repository hosted by the Institute of Geophysics and Planetary Physics (IGPP) at the University of California, Los Angeles (UCLA).</Description>
         </AccessURL>
         <Format>Text</Format>
         <Encoding>GZIP</Encoding>
         <DataExtent>
            <Quantity>4196160</Quantity>
            <Units>bytes</Units>
            <Per>P1Y</Per>
         </DataExtent>
         <Acknowledgement>Please thank the British Geological Survey, World Data Center, Edinburgh for use of data from the WDC Geomagnetic Data Master Catalog. The WDC to ASCII translation was performed at UCLA and the derived ASCII formatted data are available via the UCLA VMO data repository.</Acknowledgement>
      </AccessInformation>
      <ProcessingLevel>Calibrated</ProcessingLevel>
      <InstrumentID>spase://SMWG/Instrument/Ground/San.Juan/Magnetometer</InstrumentID>
      <MeasurementType>MagneticField</MeasurementType>
      <TemporalDescription>
         <TimeSpan>
            <StartDate>1983-01-01T00:00:00.000</StartDate>
            <StopDate>2010-12-31T23:59:00.000</StopDate>
            <Note>Some data gaps may be present. If a gap is present at the beginning or end of the file, the time span start and stop dates could be inaccurate as they are assigned assuming an absence of such gaps.</Note>
         </TimeSpan>
         <Cadence>PT1M</Cadence>
      </TemporalDescription>
      <ObservedRegion>Earth.Surface</ObservedRegion>
      <Keyword>ground station</Keyword>
      <Keyword>magnetometer</Keyword>
      <Keyword>magnetic field</Keyword>
      <Keyword>magnetogram</Keyword>
      <Keyword>San Juan</Keyword>
      <Keyword>WDC Station Code: SJG</Keyword>
      <Keyword>1-minute</Keyword>
      <Keyword>ASCII Flat File</Keyword>
      <Keyword>ASCII Flat Table</Keyword>
      <Parameter>
         <Name>Universal Time</Name>
         <ParameterKey>Time</ParameterKey>
         <Description>Time is expressed using a five column format with the following order: year, month, day, hour, and minute, each stored in interger format. The time columns are the first five columns (1,2,3,4,5) in the flat file.</Description>
         <Cadence>PT1M</Cadence>
         <Structure>
            <Size>5</Size>
            <Description>Universal Time expressed using a 5-column year, month, day, hour, minute representation</Description>
            <Element>
               <Name>Year</Name>
               <Index>1</Index>
               <ParameterKey>Column_1</ParameterKey>
            </Element>
            <Element>
               <Name>Month</Name>
               <Index>2</Index>
               <ParameterKey>Column_2</ParameterKey>
            </Element>
            <Element>
               <Name>Day</Name>
               <Index>3</Index>
               <ParameterKey>Column_3</ParameterKey>
            </Element>
            <Element>
               <Name>Hour</Name>
               <Index>4</Index>
               <ParameterKey>Column_4</ParameterKey>
            </Element>
            <Element>
               <Name>Minute</Name>
               <Index>5</Index>
               <ParameterKey>Column_5</ParameterKey>
            </Element>
         </Structure>
         <Support>
            <SupportQuantity>Temporal</SupportQuantity>
         </Support>
      </Parameter>
      <Parameter>
         <Name>Magnetic Field DHZ</Name>
         <Description>San Juan Magnetic Field in DHZ Coordinates</Description>
         <Cadence>PT1M</Cadence>
         <CoordinateSystem>
            <CoordinateRepresentation>Cylindrical</CoordinateRepresentation>
            <CoordinateSystemName>CGM</CoordinateSystemName>
         </CoordinateSystem>
         <Structure>
            <Size>3</Size>
            <Description>San Juan Magnetic Field Data in DHZ Coordinates. The DHZ data columns are numbers (6,8,11) in the flat file.</Description>
            <Element>
               <Name>D</Name>
               <Qualifier>DirectionAngle.AzimuthAngle</Qualifier>
               <Index>1</Index>
               <ParameterKey>Column_6</ParameterKey>
               <Units>Degree</Units>
               <UnitsConversion>2*pi &gt; Radian</UnitsConversion>
               <ValidMin>-180.0</ValidMin>
               <ValidMax>180.0</ValidMax>
               <FillValue>-99999.999</FillValue>
            </Element>
            <Element>
               <Name>H</Name>
               <Qualifier>Projection.IJ</Qualifier>
               <Index>2</Index>
               <ParameterKey>Column_8</ParameterKey>
               <Units>nT</Units>
               <UnitsConversion>10^9 &gt;T</UnitsConversion>
               <ValidMin>-70000</ValidMin>
               <ValidMax>70000</ValidMax>
               <FillValue>-99999.999</FillValue>
            </Element>
            <Element>
               <Name>Z</Name>
               <Qualifier>Component.K</Qualifier>
               <Index>3</Index>
               <ParameterKey>Column_11</ParameterKey>
               <Units>nT</Units>
               <UnitsConversion>10^9 &gt;T</UnitsConversion>
               <ValidMin>-70000</ValidMin>
               <ValidMax>70000</ValidMax>
               <FillValue>-99999.999</FillValue>
            </Element>
         </Structure>
         <Field>
            <Qualifier>Vector</Qualifier>
            <FieldQuantity>Magnetic</FieldQuantity>
         </Field>
      </Parameter>
      <Parameter>
         <Name>San Juan Magnetic Field XYZ</Name>
         <Description>San Juan Magnetic Field in XYZ coordinates</Description>
         <Cadence>PT1M</Cadence>
         <CoordinateSystem>
            <CoordinateRepresentation>Cartesian</CoordinateRepresentation>
            <CoordinateSystemName>CGM</CoordinateSystemName>
         </CoordinateSystem>
         <Structure>
            <Size>3</Size>
            <Description>San Juan Magnetic Field Data in XYZ Coordinates. The XYZ data columns are numbers (9,10,11) in the flat file.</Description>
            <Element>
               <Name>X</Name>
               <Qualifier>Component.I</Qualifier>
               <Index>1</Index>
               <ParameterKey>Column_9</ParameterKey>
               <Units>nT</Units>
               <UnitsConversion>10^9 &gt;T</UnitsConversion>
               <ValidMin>-70000</ValidMin>
               <ValidMax>70000</ValidMax>
               <FillValue>-99999.999</FillValue>
            </Element>
            <Element>
               <Name>Y</Name>
               <Qualifier>Component.J</Qualifier>
               <Index>2</Index>
               <ParameterKey>Column_10</ParameterKey>
               <Units>nT</Units>
               <UnitsConversion>10^9 &gt;T</UnitsConversion>
               <ValidMin>-70000</ValidMin>
               <ValidMax>70000</ValidMax>
               <FillValue>-99999.999</FillValue>
            </Element>
            <Element>
               <Name>Z</Name>
               <Qualifier>Component.K</Qualifier>
               <Index>3</Index>
               <ParameterKey>Column_11</ParameterKey>
               <Units>nT</Units>
               <UnitsConversion>10^9 &gt;T</UnitsConversion>
               <ValidMin>-70000</ValidMin>
               <ValidMax>70000</ValidMax>
               <FillValue>-99999.999</FillValue>
            </Element>
         </Structure>
         <Field>
            <Qualifier>Vector</Qualifier>
            <FieldQuantity>Magnetic</FieldQuantity>
         </Field>
      </Parameter>
      <Parameter>
         <Name>Magnetic Field Inclination</Name>
         <ParameterKey>Column_7</ParameterKey>
         <Description>San Juan Magnetic Field Vector Inclination</Description>
         <Cadence>PT1M</Cadence>
         <Units>Degree</Units>
         <UnitsConversion>2*pi &gt; Radian</UnitsConversion>
         <ValidMin>-180.0</ValidMin>
         <ValidMax>180.0</ValidMax>
         <FillValue>-99999.999</FillValue>
         <Field>
            <Qualifier>DirectionAngle.ElevationAngle</Qualifier>
            <FieldQuantity>Magnetic</FieldQuantity>
         </Field>
      </Parameter>
      <Parameter>
         <Name>Magnetic Field Magnitude</Name>
         <ParameterKey>Column_12</ParameterKey>
         <Description>San Juan Magnetic Field Vector Magnitude</Description>
         <Cadence>PT1M</Cadence>
         <Units>nT</Units>
         <UnitsConversion>10^9 &gt;T</UnitsConversion>
         <ValidMin>0</ValidMin>
         <ValidMax>70000</ValidMax>
         <FillValue>-99999.999</FillValue>
         <Field>
            <Qualifier>Magnitude</Qualifier>
            <FieldQuantity>Magnetic</FieldQuantity>
         </Field>
      </Parameter>
      <Extension>
         <DataCoverage>
            SJG 1983 D H Z F
            SJG 1984 D H Z F
            SJG 1985 D H Z F
            SJG 1986 D H Z F
            SJG 1987 D H Z F
            SJG 1988 D H Z F
            SJG 1989 D H Z F
            SJG 1990 D H Z F
            SJG 1991 D H Z F
            SJG 1992 D H Z F
            SJG 1993 D H Z F
            SJG 1994 D H Z F
            SJG 1995 D H Z F
            SJG 1996 D H Z F
            SJG 1997 D H Z F
            SJG 1998 D H Z F
            SJG 1999 D H Z F
            SJG 2000 D H Z F
            SJG 2001 D H Z F
            SJG 2002 D H Z F
            SJG 2003 D H Z F
            SJG 2004 X Y Z F
            SJG 2005 X Y Z F
            SJG 2006 X Y Z F
            SJG 2007 X Y Z F
            SJG 2008 X Y Z F
            SJG 2009 X Y Z F
            SJG 2010 X Y Z F
         </DataCoverage>
      </Extension>
   </NumericalData>
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