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    Metrology of solar spectral irradiance at the top of the atmosphere in the near infrared measured at Mauna Loa Observatory: the PYR-ILIOS campaign

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    Authors
    Pereira, N.
    Bolsée, D.
    Sperfeld, P.
    Pape, S.
    Sluse, D.
    Cessateur, G.
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    Discipline
    Earth and related Environmental sciences
    Audience
    Scientific
    Date
    2018
    Metadata
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    Description
    The near-infrared (NIR) part of the solar spectrum is of prime importance for solar physics and climatology, directly intervening in the Earth's radiation budget. Despite its major role, available solar spectral irradiance (SSI) NIR datasets, space-borne or ground-based, present discrepancies caused by instrumental or methodological reasons. We present new results obtained from the PYR-ILIOS SSI NIR ground-based campaign, which is a replication of the previous IRSPERAD campaign which took place in 2011 at the Izaña Atmospheric Observatory (IZO). We used the same instrument and primary calibration source of spectral irradiance. A new site was chosen for PYR-ILIOS: the Mauna Loa Observatory (MLO) in Hawaii (3397 m a.s.l.), approximately 1000 m higher than IZO. Relatively to IRSPERAD, the methodology of monitoring the traceability to the primary calibration source was improved. The results as well as a detailed error budget are presented. We demonstrate that the most recent results, from PYR-ILIOS and other space-borne and ground-based experiments, show an NIR SSI lower than the previous reference spectrum, ATLAS3, for wavelengths above 1.6 µm.
    Citation
    Pereira, N.; Bolsée, D.; Sperfeld, P.; Pape, S.; Sluse, D.; Cessateur, G. (2018). Metrology of solar spectral irradiance at the top of the atmosphere in the near infrared measured at Mauna Loa Observatory: the PYR-ILIOS campaign. , Atmospheric Measurement Techniques, Vol. 11, Issue 12, 6605-6615, DOI: 10.5194/amt-11-6605-2018.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/7153
    doi: http://dx.doi.org/10.5194/amt-11-6605-2018
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
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