<?xml version="1.0" encoding="UTF-8"?>
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  <Version>2.3.2</Version>
  <NumericalData>
    <ResourceID>spase://NASA/NumericalData/TIMED/SEE/L3A</ResourceID>
    <ResourceHeader>
      <ResourceName>TIMED SEE Level 3A Solar Irradiance Data</ResourceName>
      <ReleaseDate>2021-04-27T15:38:11Z</ReleaseDate>
      <Description>SEE Level 3A data files contain each measurements averaged solar irradiance spectrum 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 measurement, after applying corrections for atmospheric absorption, degradation, flare removal, and to 1-AU.</Description>
      <Acknowledgement>NASA, Thomas N. Woods</Acknowledgement>
      <Contact>
        <PersonID>spase://SMWG/Person/Thomas.N.Woods</PersonID>
        <Role>PrincipalInvestigator</Role>
      </Contact>
      <InformationURL>
        <Name>L3 Data Information</Name>
        <URL>http://lasp.colorado.edu/home/see/data/observational-averages/level-3a/</URL>
      </InformationURL>
      <PriorID>spase://VITMO/NumericalData/TIMED/SEE/L3A</PriorID>
      <PriorID>spase://VSPO/NumericalData/TIMED/SEE/L3A</PriorID>
    </ResourceHeader>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/TIMED/SEE_POC</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <AccessURL>
        <Name>SEE Data Products web page</Name>
        <URL>http://lasp.colorado.edu/home/see/data/</URL>
        <Description>This web page allows the request of data files for this product.  To request data: for the L3A data type of interest, click the year of interest to go the the ftp directory of files and download the desired day-long file by clicking on it.</Description>
      </AccessURL>
      <Format>NetCDF</Format>
      <Encoding>None</Encoding>
      <Acknowledgement>NASA, Thomas N. Woods</Acknowledgement>
    </AccessInformation>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <AccessURL>
        <Name>FTPS from SPDF (not with most browsers)</Name>
        <URL>ftps://spdf.gsfc.nasa.gov/pub/data/timed/see/data/level3a_cdf/</URL>
        <Description>FTP repository of TIMED SEE Level 3A Solar Irradience data in CDF format at CDAWeb</Description>
      </AccessURL>
      <AccessURL>
        <Name>HTTPS from SPDF</Name>
        <URL>https://spdf.gsfc.nasa.gov/pub/data/timed/see/data/level3a_cdf/</URL>
        <Description>In CDF via HTTP from SPDF</Description>
      </AccessURL>
      <Format>CDF</Format>
      <Acknowledgement>Please acknowledge the support from CDAWeb team at GSFC/SPDF.</Acknowledgement>
    </AccessInformation>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <AccessURL>
        <Name>CDAWeb</Name>
        <URL>https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=TIMED_L3A_SEE&amp;index=sp_phys</URL>
        <ProductKey>TIMED_L3A_SEE</ProductKey>
        <Description> TIMED SEE L3A data with subset, plot, list from CDAWeb</Description>
      </AccessURL>
      <Format>Text</Format>
      <Acknowledgement>Please acknowledge the support from the CDAWeb team at GSFC/SPDF.</Acknowledgement>
    </AccessInformation>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <AccessURL>
        <Name>CDAWeb HAPI Server</Name>
        <URL>https://cdaweb.gsfc.nasa.gov/hapi</URL>
        <Style>HAPI</Style>
        <ProductKey>TIMED_L3A_SEE</ProductKey>
        <Description>Web Service to this product using the HAPI interface.</Description>
      </AccessURL>
      <Format>CSV</Format>
      <Acknowledgement>Please acknowledge the support from the CDAWeb team at GSFC/SPDF.</Acknowledgement>
    </AccessInformation>
    <ProcessingLevel>Calibrated</ProcessingLevel>
    <ProviderResourceName>SEE Level 3A Solar Irradiance data</ProviderResourceName>
    <ProviderProcessingLevel>Level 3A</ProviderProcessingLevel>
    <ProviderVersion>10.02</ProviderVersion>
    <InstrumentID>spase://SMWG/Instrument/TIMED/SEE</InstrumentID>
    <MeasurementType>Irradiance</MeasurementType>
    <TemporalDescription>
      <TimeSpan>
        <StartDate>2002-01-22T00:00:00.000</StartDate>
        <RelativeStopDate>P2D</RelativeStopDate>
      </TimeSpan>
    </TemporalDescription>
    <ObservedRegion>Sun</ObservedRegion>
    <Keyword>TIMED</Keyword>
    <Keyword>SEE</Keyword>
    <Keyword>Sun</Keyword>
    <Parameter>
      <Name>solar irradiance spectrum</Name>
      <ParameterKey>SP.FLUX</ParameterKey>
      <Description>Merged Solar irradiance for XPS and EGS flux at 1nm bins with gaps filled using Woods-Rottman 2002 VUV model. Below 26 nm, flux is result of solution of linear equations involving XPS diodes and scaled to the VUV model.  EGS data is used above 26 nm except 114.5-120.5 and 122.5-128.5 nm where the VUV model is scaled to the EGS Lyman-alpha line.</Description>
      <Units>W / m^2 / nm</Units>
      <Wave>
        <WaveType>Electromagnetic</WaveType>
        <WaveQuantity>Wavelength</WaveQuantity>
        <WavelengthRange>
          <Low>0.5</Low>
          <High>194.5</High>
          <Units>nm</Units>
        </WavelengthRange>
      </Wave>
    </Parameter>
  </NumericalData>
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