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NumericalData/AMDA/Indices/Ground_Based/ground-based-aa.xml 2.8 KB
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<?xml version="1.0" encoding="UTF-8"?>
<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://cdpp.irap.omp.eu/AMDA-NG/public/schemas/spase-amda-1_2_0.xsd">
   <Version>2.2.6</Version>
   <NumericalData>
      <ResourceID>spase://CDPP/NumericalData/AMDA/Indices/Ground_Based/ground-based-aa</ResourceID>
      <ResourceHeader>
         <ResourceName>aa</ResourceName>
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	 <AlternateName>aa IAGA-endorsed magnetic activity index</AlternateName>
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         <ReleaseDate>2018-01-16T11:00:00Z</ReleaseDate>
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         <Description>Index which purpose is to measure the amplitude of global geomagnetic activity during 3-hour intervals normalized to geomagnetic latitude ±50°. aa was introduced to monitor geomagnetic activity over the longest possible time period.</Description>
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         <Acknowledgement>ISGI website at EOST; License: CC BY-NC https://creativecommons.org/licenses/by-nc/4.0/</Acknowledgement>
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         <Contact>
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            <PersonID>spase://CDPP/Person/Aude.Chambodut</PersonID>
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            <Role>TechnicalContact</Role>
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         </Contact>
         <InformationURL>
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           <Name>IAGA geomagnetic indices</Name>
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           <URL>http://isgi.unistra.fr/indices_aa.php</URL>
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           <Description/>
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         </InformationURL>       
      </ResourceHeader>
      <AccessInformation>
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         <RepositoryID>spase://CDPP/Repository/CDPP/AMDA</RepositoryID>
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         <Availability>Online</Availability>
         <AccessRights>Open</AccessRights>
         <AccessURL>
            <Name>AMDA at CDPP</Name>
            <URL>
                http://amda.cdpp.eu
            </URL>
         </AccessURL>
         <Format>Text</Format>
         <Acknowledgement>           
         </Acknowledgement>
      </AccessInformation>
      <ProviderName>ISGI/UNISTRA</ProviderName> 
      <InstrumentID>spase://CDPP/Instrument/AMDA/Indices/Ground_Based</InstrumentID>
      <MeasurementType>MagneticField</MeasurementType>
      <TemporalDescription>
         <TimeSpan>
             <StartDate>1975-01-01T00:00:00Z</StartDate>
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             <StopDate>2018-06-15T21:00:00Z</StopDate>
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         </TimeSpan>
      <Cadence>PT3H</Cadence></TemporalDescription>
      <ObservedRegion>Earth.NearSurface</ObservedRegion>
      <Caveats>
      </Caveats>    
      <Parameter>
         <Name>aa</Name>
         <ParameterKey>aa</ParameterKey>
         <Description/>
         <Ucd/>
         <Units>nT</Units>
         <UnitsConversion/>
      </Parameter>
      <Parameter>
         <Name>Aa</Name>
         <ParameterKey>Aa</ParameterKey>
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         <Description>Daily Mean of aa</Description>
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         <Ucd/>
         <Units>nT</Units>
         <UnitsConversion/>
      </Parameter>
   </NumericalData>
</Spase>