<?xml version="1.0" encoding="UTF-8"?>

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  <Version>2.4.1</Version>
  <NumericalData>
    <ResourceID>spase://CNES/NumericalData/CDPP-AMDA/TIMED/SEE/timed-see-l3a</ResourceID>
    <ResourceHeader>
      <ResourceName>3 min averages</ResourceName>
      <AlternateName>3 min averages / level3a / flares included</AlternateName>

      <ReleaseDate>2024-10-04T05:30:50Z</ReleaseDate>

      <Description>

          SEE Level 3A OVERVIEW:  
          The Solar EUV Experiment (SEE) is comprised of two science components: 
* the EUV Grating Spectrograph (EGS) component covers the wavelength range from approximately 26 to 190 nm
* the X-Ray Photometer System (XPS) component covers the wavelength range from approximately 0.5 to 34 nm 

The Level 3A data product 
contains irradiances for each observation average (~3 min). Level 3A does 
not remove flares, so it is useful for short-term flare studies.    
         </Description>

      <Acknowledgement>

          Users that wish to publish the results derived from TIMED 
data should normally offer co-authorship to the PI or 
his/her designated team member.  Co-authorship may be 
declined. Appropriate acknowledgement to institutions, 
personnel, and funding agencies should be given.  
         </Acknowledgement>

      <Contact>
        <PersonID>spase://CNES/Person/CDPP-AMDA/T.Woods</PersonID>

        <Role>PrincipalInvestigator</Role>

      </Contact>
      <InformationURL>
        <Name>Dataset description</Name>
        <URL>http://lasp.colorado.edu/data/timed_see/level3a/README_SEE_L3A_012.TXT</URL>

      </InformationURL>

      <Association>
        <AssociationID>timed-see-flux</AssociationID>
        <AssociationType>PartOf</AssociationType>
        <Note>EUV / X ray</Note>
      </Association>
    </ResourceHeader>
    <AccessInformation>

      <RepositoryID>spase://SMWG/Repository/CDPP/AMDA</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <AccessURL>
        <Name>CDPP/AMDA HAPI Server</Name>

        <URL>https://amda.irap.omp.eu/service/hapi</URL>

        <Style>HAPI</Style>

        <ProductKey>timed-see-l3a</ProductKey>

        <Description>Web Service to this product using the HAPI interface.</Description>
      </AccessURL>
      <Format>CSV</Format>

      <Acknowledgement>Thank you for acknowledging the use of AMDA in publications with wording like "Data analysis was performed with the AMDA science analysis system provided by the Centre de Données de la Physique des Plasmas (CDPP) supported by CNRS, CNES, Observatoire de Paris and Université Paul Sabatier, Toulouse". See the Rules of the road at https://amda.cdpp.eu/help/policy.html . Please acknowledge the Data Providers.</Acknowledgement>

    </AccessInformation>

    <AccessInformation>

      <RepositoryID>spase://SMWG/Repository/CDPP/AMDA</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <AccessURL>
        <Name>CDPP/AMDA Web application</Name>

        <URL>https://amda.cdpp.eu</URL>

        <Description>Access to Data via CDPP/AMDA Web application.</Description>
      </AccessURL>
      <Format>CSV</Format>
      <Format>VOTable</Format>
      <Format>CDF</Format>
      <Format>PNG</Format>

      <Acknowledgement>Thank you for acknowledging the use of AMDA in publications with wording like "Data analysis was performed with the AMDA science analysis system provided by the Centre de Données de la Physique des Plasmas (CDPP) supported by CNRS, CNES, Observatoire de Paris and Université Paul Sabatier, Toulouse". See the Rules of the road at https://amda.cdpp.eu/help/policy.html . Please acknowledge the Data Providers.</Acknowledgement>

    </AccessInformation>

    <ProviderName>http://lasp.colorado.edu/data</ProviderName>
    <ProviderResourceName>level3a</ProviderResourceName>
    <InstrumentID>spase://CNES/Instrument/CDPP-AMDA/TIMED/SEE</InstrumentID>
    <MeasurementType>Irradiance</MeasurementType>
    <TemporalDescription>
      <TimeSpan>
        <StartDate>2002-01-22T00:00:00Z</StartDate>

        <StopDate>2024-10-01T23:59:59Z</StopDate>

      </TimeSpan>
      <Cadence>PT90M</Cadence>
    </TemporalDescription>
    <ObservedRegion>Earth.NearSurface.Ionosphere</ObservedRegion>
    <Caveats>SEE Level 3A data files contain observation averaged solar irradiance  

spectra in 1 nm intervals extracted from the EGS Level 2A and XPS  
Level 2A data products. Shortward of 27 nm, a solar model is scaled  
to match the XPS broadband data. SEE Level 3A data files also contain  
38 emission lines extracted from EGS Level 2A spectra, and the XPS  
Level 2A diode irradiances. 

For normal operations, SEE observes the Sun for about 3 minutes every orbit (97 minutes), which usually gives 14-15  
measurements per day. The SEE Level 3A data are time averaged over each observation, 
after applying corrections for atmospheric absorption, 
degradation, and to 1-AU (no flare removal). A suborbital (sounding 
rocket) payload is flown approximately once a year for TIMED SEE 
absolute calibrations.  The first SEE suborbital calibration flight was 
on Feb. 8, 2002, the second was on Aug. 12, 2003, the third was 
on Oct. 15, 2004, the fourth was on Oct. 28, 2006, and the final 
SEE calibration flight was on Apr. 14, 2008.  There are also three 
SDO EVE calibration flights used for checking SEE degradation trends - 
May 3, 2010, Mar. 23, 2011, June 23, 2012, Oct 21, 2013, and 
June 1, 2016.

      </Caveats>
    <Parameter>
      <Name>flux : spectra</Name>
      <ParameterKey>timed_sp_high</ParameterKey>
      <Description>Merged median solar irradiance for XPS and EGS flux at 1nm bins</Description>

      <Units>W/m**2/nm</Units>

      <RenderingHints>
        <DisplayType>Spectrogram</DisplayType>
      </RenderingHints>
      <FillValue>-1</FillValue>
      <Wave>
        <WaveType>Photon</WaveType>
        <WaveQuantity>EnergyFlux</WaveQuantity>
      </Wave>
    </Parameter>
    <Parameter>
      <Name>flux : lines</Name>
      <ParameterKey>timed_ln_high</ParameterKey>
      <Description>Integrated median spectral line irradiance</Description>

      <Units>W/m**2/nm</Units>

      <RenderingHints>
        <DisplayType>TimeSeries</DisplayType>
      </RenderingHints>
      <FillValue>-1</FillValue>
      <Wave>
        <WaveType>Photon</WaveType>
        <WaveQuantity>EnergyFlux</WaveQuantity>
      </Wave>
    </Parameter>
  </NumericalData>

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