@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

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    dct:description """
              We propose to evaluate the calibration of MERIS (MEdium Resolution Imaging Spectrometer) over dark waters in the near infrared. We work with 5 months of data, from July to November 2003, over five world sites: Venice and Lampedusa in Italy, El Arenosillo in Spain, MOBY/Lanai and CalCOFI/San Nicolas in the United States. The sites are all equipped with a CIMEL station that forms part of the AERONET network. The basic idea is to associate CIMEL sky radiance measurements with MERIS level-1b data in a twin geometry which corresponds to the same scattering angle. This vicarious calibration relies on an accurate description of the atmospheric scattering based on the CIMEL measurements.After a selection of MERIS and CIMEL data we finally obtained 8 days for the calibration task—about 10% of the initial dataset. We achieved a match-up analysis at 6 MERIS wavelengths, from 884 nm to 664 nm, in the near infrared (NIR). Results show an agreement between the onboard calibration and our method within 1.5% in the NIR which falls in the expected accuracy of the two methods.
            """ ;
    dct:identifier "hal-00070909" ;
    dct:issued "2026-05-15T16:53:08.062023"^^xsd:dateTime ;
    dct:language "en" ;
    dct:modified "2026-05-15T16:53:08.062029"^^xsd:dateTime ;
    dct:publisher <https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> ;
    dct:title "Vicarious calibration of MERIS over dark waters in the near infrared" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "CCSD" ] ;
    dcat:distribution <https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-hal-00070909v1/resource/564d336d-5fbb-4c5b-a72c-56408723846b> ;
    dcat:keyword "cimel-ground-based-measurements",
        "infoeu-reposemanticsarticle",
        "journal-articles",
        "meris",
        "near-infrared",
        "radiative-transfer",
        "sdemcgenvironmental-sciencesglobal-changes",
        "sdustuclsciences-of-the-universe-physicsearth-sciencesclimatology",
        "vicarious-calibration" ;
    dcat:landingPage <ISSN:%200034-4257> .

<ISSN:%200034-4257> a foaf:Document .

<https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-hal-00070909v1/resource/564d336d-5fbb-4c5b-a72c-56408723846b> a dcat:Distribution ;
    dct:format "HTML" ;
    dct:issued "2026-05-15T16:53:08.098785"^^xsd:dateTime ;
    dct:modified "2026-05-15T16:53:08.040342"^^xsd:dateTime ;
    dct:title "Vicarious calibration of MERIS over dark waters in the near infrared" ;
    dcat:accessURL <https://hal.science/hal-00070909> .

<https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> a foaf:Agent ;
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