<?xml version="1.0" encoding="utf-8"?>
<TEI xmlns="http://www.tei-c.org/ns/1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:hal="http://hal.archives-ouvertes.fr/" xmlns:gml="http://www.opengis.net/gml/3.3/" xmlns:gmlce="http://www.opengis.net/gml/3.3/ce" version="1.1" xsi:schemaLocation="http://www.tei-c.org/ns/1.0 http://api.archives-ouvertes.fr/documents/aofr-sword.xsd">
  <teiHeader>
    <fileDesc>
      <titleStmt>
        <title>HAL TEI export of hal-01873141</title>
      </titleStmt>
      <publicationStmt>
        <distributor>CCSD</distributor>
        <availability status="restricted">
          <licence target="https://creativecommons.org/publicdomain/zero/1.0/">CC0 1.0 - Universal</licence>
        </availability>
        <date when="2026-05-19T08:11:33+02:00"/>
      </publicationStmt>
      <sourceDesc>
        <p part="N">HAL API Platform</p>
      </sourceDesc>
    </fileDesc>
  </teiHeader>
  <text>
    <body>
      <listBibl>
        <biblFull>
          <titleStmt>
            <title xml:lang="en">Downwelling surface solar irradiance in the tropical Atlantic Ocean: a comparison of re-analyses and satellite-derived data sets to PIRATA measurements</title>
            <author role="aut">
              <persName>
                <forename type="first">Mélodie</forename>
                <surname>Trolliet</surname>
              </persName>
              <idno type="halauthorid">1171906-0</idno>
              <affiliation ref="#struct-226348"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Jakub</forename>
                <forename type="middle">P</forename>
                <surname>Walawender</surname>
              </persName>
              <idno type="halauthorid">1421684-0</idno>
              <affiliation ref="#struct-252743"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Bernard</forename>
                <surname>Bourlès</surname>
              </persName>
              <email type="md5">18e39ae7d39b9465880121341bf33a09</email>
              <email type="domain">ird.fr</email>
              <idno type="idhal" notation="string">bernard-bourles</idno>
              <idno type="idhal" notation="numeric">175916</idno>
              <idno type="halauthorid" notation="string">17476-175916</idno>
              <idno type="ORCID">https://orcid.org/0000-0001-6515-4519</idno>
              <idno type="IDREF">https://www.idref.fr/131460811</idno>
              <affiliation ref="#struct-480580"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Alexandre</forename>
                <surname>Boilley</surname>
              </persName>
              <idno type="halauthorid">595001-0</idno>
              <affiliation ref="#struct-343323"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Jörg</forename>
                <surname>Trentmann</surname>
              </persName>
              <idno type="halauthorid">533845-0</idno>
              <affiliation ref="#struct-252743"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Philippe</forename>
                <surname>Blanc</surname>
              </persName>
              <email type="md5">db4f4366dc15dfe00a250e3556b13387</email>
              <email type="domain">brgm.fr</email>
              <idno type="idhal" notation="string">p-blanc</idno>
              <idno type="idhal" notation="numeric">183558</idno>
              <idno type="halauthorid" notation="string">11446-183558</idno>
              <idno type="RESEARCHERID">http://www.researcherid.com/rid/AAJ-6461-2020</idno>
              <idno type="ORCID">https://orcid.org/0000-0002-6855-1875</idno>
              <idno type="IDREF">https://www.idref.fr/199525854</idno>
              <idno type="RESEARCHERID">http://www.researcherid.com/rid/http://www.researcherid.com/rid/AAJ-6461-2020</idno>
              <affiliation ref="#struct-226348"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Mireille</forename>
                <surname>Lefèvre</surname>
              </persName>
              <email type="md5">bb3cd24e2949b64e0402dd220c22aeee</email>
              <email type="domain">mines-paristech.fr</email>
              <idno type="idhal" notation="string">mireille-lefevre</idno>
              <idno type="idhal" notation="numeric">13555</idno>
              <idno type="halauthorid" notation="string">26824-13555</idno>
              <idno type="ORCID">https://orcid.org/0000-0003-0245-6397</idno>
              <affiliation ref="#struct-226348"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Lucien</forename>
                <surname>Wald</surname>
              </persName>
              <email type="md5">b61e6830e8221b912fa22b4f3eae0158</email>
              <email type="domain">mines-paristech.fr</email>
              <idno type="idhal" notation="string">lucien-wald</idno>
              <idno type="idhal" notation="numeric">197</idno>
              <idno type="halauthorid" notation="string">23729-197</idno>
              <idno type="RESEARCHERID">http://www.researcherid.com/rid/C-1284-2009</idno>
              <idno type="ORCID">https://orcid.org/0000-0002-2916-2391</idno>
              <idno type="IDREF">https://www.idref.fr/060583304</idno>
              <idno type="RESEARCHERID">http://www.researcherid.com/rid/http://www.researcherid.com/rid/C-1284-2009</idno>
              <affiliation ref="#struct-226348"/>
            </author>
            <editor role="depositor">
              <persName>
                <forename>Lucien</forename>
                <surname>Wald</surname>
              </persName>
              <email type="md5">b61e6830e8221b912fa22b4f3eae0158</email>
              <email type="domain">mines-paristech.fr</email>
            </editor>
          </titleStmt>
          <editionStmt>
            <edition n="v1" type="current">
              <date type="whenSubmitted">2018-09-13 01:24:55</date>
              <date type="whenModified">2026-01-09 11:22:08</date>
              <date type="whenReleased">2018-09-19 11:14:40</date>
              <date type="whenProduced">2018-09-13</date>
              <date type="whenEndEmbargoed">2018-09-13</date>
              <ref type="file" target="https://minesparis-psl.hal.science/hal-01873141v1/document">
                <date notBefore="2018-09-13"/>
              </ref>
              <ref type="file" subtype="publisherPaid" n="1" target="https://minesparis-psl.hal.science/hal-01873141v1/file/2018_ocean_atlantic_trolliet.pdf" id="file-1873141-1900266">
                <date notBefore="2018-09-13"/>
              </ref>
              <ref type="externalLink" target="https://doi.org/10.5194/os-14-1021-2018"/>
            </edition>
            <respStmt>
              <resp>contributor</resp>
              <name key="135531">
                <persName>
                  <forename>Lucien</forename>
                  <surname>Wald</surname>
                </persName>
                <email type="md5">b61e6830e8221b912fa22b4f3eae0158</email>
                <email type="domain">mines-paristech.fr</email>
              </name>
            </respStmt>
          </editionStmt>
          <publicationStmt>
            <distributor>CCSD</distributor>
            <idno type="halId">hal-01873141</idno>
            <idno type="halUri">https://minesparis-psl.hal.science/hal-01873141</idno>
            <idno type="halBibtex">trolliet:hal-01873141</idno>
            <idno type="halRefHtml">&lt;i&gt;Ocean Science&lt;/i&gt;, 2018, 14 (5), pp.1021 - 1056. &lt;a target="_blank" href="https://dx.doi.org/10.5194/os-14-1021-2018"&gt;&amp;#x27E8;10.5194/os-14-1021-2018&amp;#x27E9;&lt;/a&gt;</idno>
            <idno type="halRef">Ocean Science, 2018, 14 (5), pp.1021 - 1056. &amp;#x27E8;10.5194/os-14-1021-2018&amp;#x27E9;</idno>
            <availability status="restricted">
              <licence target="https://about.hal.science/hal-authorisation-v1/">HAL Authorization<ref corresp="#file-1873141-1900266"/></licence>
            </availability>
          </publicationStmt>
          <seriesStmt>
            <idno type="stamp" n="IRD">IRD - Institut de recherche pour le développement</idno>
            <idno type="stamp" n="INSU">INSU - Institut National des Sciences de l'Univers</idno>
            <idno type="stamp" n="UNIV-BREST">Université de Bretagne occidentale - Brest (UBO)</idno>
            <idno type="stamp" n="ENSMP" corresp="PARISTECH">MINES ParisTech</idno>
            <idno type="stamp" n="CNRS">CNRS - Centre national de la recherche scientifique</idno>
            <idno type="stamp" n="IFREMER">IFREMER : Institut français de recherche pour l'exploitation de la mer</idno>
            <idno type="stamp" n="IUEM" corresp="UNIV-BREST">Institut Universitaire Européen de la Mer</idno>
            <idno type="stamp" n="PARISTECH">ParisTech</idno>
            <idno type="stamp" n="THESES_IUEM" corresp="IUEM">Thèses de l'IUEM</idno>
            <idno type="stamp" n="GIP-BE">GIP Bretagne Environnement</idno>
            <idno type="stamp" n="OIE" corresp="ENSMP">Observation, Impacts, Energie</idno>
            <idno type="stamp" n="PSL">Université Paris sciences et lettres</idno>
            <idno type="stamp" n="LOPS" corresp="UNIV-BREST">Laboratoire d'océanographie physique et spatiale</idno>
            <idno type="stamp" n="ENSMP_DEP_EP" corresp="ENSMP">Département Énergétique et Procédés</idno>
            <idno type="stamp" n="ENSMP_DR" corresp="ENSMP">ENSMP_DR</idno>
            <idno type="stamp" n="ENSMP-PSL" corresp="PSL">MINES ParisTech - École nationale supérieure des mines de Paris - PSL</idno>
            <idno type="stamp" n="ENSMP_OIE" corresp="ENSMP">Centre Observation, Impacts, Énergie (O.I.E.), Mines Paris - PSL</idno>
          </seriesStmt>
          <notesStmt>
            <note type="audience" n="2">International</note>
            <note type="popular" n="0">No</note>
            <note type="peer" n="1">Yes</note>
          </notesStmt>
          <sourceDesc>
            <biblStruct>
              <analytic>
                <title xml:lang="en">Downwelling surface solar irradiance in the tropical Atlantic Ocean: a comparison of re-analyses and satellite-derived data sets to PIRATA measurements</title>
                <author role="aut">
                  <persName>
                    <forename type="first">Mélodie</forename>
                    <surname>Trolliet</surname>
                  </persName>
                  <idno type="halauthorid">1171906-0</idno>
                  <affiliation ref="#struct-226348"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Jakub</forename>
                    <forename type="middle">P</forename>
                    <surname>Walawender</surname>
                  </persName>
                  <idno type="halauthorid">1421684-0</idno>
                  <affiliation ref="#struct-252743"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Bernard</forename>
                    <surname>Bourlès</surname>
                  </persName>
                  <email type="md5">18e39ae7d39b9465880121341bf33a09</email>
                  <email type="domain">ird.fr</email>
                  <idno type="idhal" notation="string">bernard-bourles</idno>
                  <idno type="idhal" notation="numeric">175916</idno>
                  <idno type="halauthorid" notation="string">17476-175916</idno>
                  <idno type="ORCID">https://orcid.org/0000-0001-6515-4519</idno>
                  <idno type="IDREF">https://www.idref.fr/131460811</idno>
                  <affiliation ref="#struct-480580"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Alexandre</forename>
                    <surname>Boilley</surname>
                  </persName>
                  <idno type="halauthorid">595001-0</idno>
                  <affiliation ref="#struct-343323"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Jörg</forename>
                    <surname>Trentmann</surname>
                  </persName>
                  <idno type="halauthorid">533845-0</idno>
                  <affiliation ref="#struct-252743"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Philippe</forename>
                    <surname>Blanc</surname>
                  </persName>
                  <email type="md5">db4f4366dc15dfe00a250e3556b13387</email>
                  <email type="domain">brgm.fr</email>
                  <idno type="idhal" notation="string">p-blanc</idno>
                  <idno type="idhal" notation="numeric">183558</idno>
                  <idno type="halauthorid" notation="string">11446-183558</idno>
                  <idno type="RESEARCHERID">http://www.researcherid.com/rid/AAJ-6461-2020</idno>
                  <idno type="ORCID">https://orcid.org/0000-0002-6855-1875</idno>
                  <idno type="IDREF">https://www.idref.fr/199525854</idno>
                  <idno type="RESEARCHERID">http://www.researcherid.com/rid/http://www.researcherid.com/rid/AAJ-6461-2020</idno>
                  <affiliation ref="#struct-226348"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Mireille</forename>
                    <surname>Lefèvre</surname>
                  </persName>
                  <email type="md5">bb3cd24e2949b64e0402dd220c22aeee</email>
                  <email type="domain">mines-paristech.fr</email>
                  <idno type="idhal" notation="string">mireille-lefevre</idno>
                  <idno type="idhal" notation="numeric">13555</idno>
                  <idno type="halauthorid" notation="string">26824-13555</idno>
                  <idno type="ORCID">https://orcid.org/0000-0003-0245-6397</idno>
                  <affiliation ref="#struct-226348"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Lucien</forename>
                    <surname>Wald</surname>
                  </persName>
                  <email type="md5">b61e6830e8221b912fa22b4f3eae0158</email>
                  <email type="domain">mines-paristech.fr</email>
                  <idno type="idhal" notation="string">lucien-wald</idno>
                  <idno type="idhal" notation="numeric">197</idno>
                  <idno type="halauthorid" notation="string">23729-197</idno>
                  <idno type="RESEARCHERID">http://www.researcherid.com/rid/C-1284-2009</idno>
                  <idno type="ORCID">https://orcid.org/0000-0002-2916-2391</idno>
                  <idno type="IDREF">https://www.idref.fr/060583304</idno>
                  <idno type="RESEARCHERID">http://www.researcherid.com/rid/http://www.researcherid.com/rid/C-1284-2009</idno>
                  <affiliation ref="#struct-226348"/>
                </author>
              </analytic>
              <monogr>
                <idno type="halJournalId" status="VALID">1860</idno>
                <idno type="issn">1812-0784</idno>
                <idno type="eissn">1812-0792</idno>
                <title level="j">Ocean Science</title>
                <imprint>
                  <publisher>European Geosciences Union</publisher>
                  <biblScope unit="volume">14</biblScope>
                  <biblScope unit="issue">5</biblScope>
                  <biblScope unit="pp">1021 - 1056</biblScope>
                  <date type="datePub">2018-09-13</date>
                </imprint>
              </monogr>
              <idno type="doi">10.5194/os-14-1021-2018</idno>
            </biblStruct>
          </sourceDesc>
          <profileDesc>
            <langUsage>
              <language ident="en">English</language>
            </langUsage>
            <textClass>
              <classCode scheme="halDomain" n="sdu.ocean">Sciences of the Universe [physics]/Ocean, Atmosphere</classCode>
              <classCode scheme="halDomain" n="sdu.stu.cl">Sciences of the Universe [physics]/Earth Sciences/Climatology</classCode>
              <classCode scheme="halTypology" n="ART">Journal articles</classCode>
              <classCode scheme="halOldTypology" n="ART">Journal articles</classCode>
              <classCode scheme="halTreeTypology" n="ART">Journal articles</classCode>
            </textClass>
            <abstract xml:lang="en">
              <p>This paper assesses the merits and drawbacks of several data sets of solar downwelling radiation received at the horizontal surface of the tropical Atlantic Ocean where the magnitude of this radiation and its spatial and temporal variability are not well known. The data sets are compared to quality-controlled measurements of hourly means of irra-diance made at five buoys of the PIRATA network for the period 2012-2013. The data sets comprise the re-analyses MERRA-2 and ERA5, and three satellite-derived data sets: HelioClim-3v5, SARAH-2 and CAMS Radiation Service v2. It was found that the re-analyses MERRA-2 and ERA5 often report cloud-free conditions while the actual conditions are cloudy, yielding an overestimation of the irradiance in such cases; and reciprocally, they report actual cloud-free conditions as cloudy, yielding an underestimation. The re-analyses exhibit more bias in irradiance in cases of medium and high-level clouds than for low-level clouds. They correlate well with the hourly means of irradiance (as a whole, correlation coefficients greater than 0.85 for MERRA-2 and 0.89 for ERA5); they correlate very poorly with daily means of ir-radiance (coefficients of less than 0.48 and 0.59 for MERRA-2 and ERA5, respectively) and with the hourly and daily clearness indices (coefficients of less than 0.53 and 0.46 for MERRA-2 and less than 0.63 and 0.59 for ERA5). The irra-diance pattern at both hourly and daily timescales is spatially distorted by re-analyses, especially for MERRA-2. The three satellite-derived data sets exhibit similar performances between them. The correlation coefficients are greater than 0.95 and 0.78 for irradiance and clearness index, respectively, in most cases for hourly values and 0.90 and 0.88, respectively, for daily values. The relative standard deviation of errors is of the order of 15 % for hourly values and 8 % for daily values. It is concluded that these data sets reproduce well the dynamics of the irradiance and clearness index at both hourly and daily timescales. They exhibit overestimation, with the lowest biases reached by the CAMS Radiation Service v2 and ranging between 11 and 37 W m −2 depending on the buoy. It is suggested that HelioClim-3v5 and CAMS Radiation Service v2 are suited for reproducing the spatial gradients of the irradiance and reflecting the spatial variability in the irradiance.</p>
            </abstract>
          </profileDesc>
        </biblFull>
      </listBibl>
    </body>
    <back>
      <listOrg type="structures">
        <org type="laboratory" xml:id="struct-226348" status="VALID">
          <idno type="IdRef">176768106</idno>
          <idno type="ROR">https://ror.org/054fae424</idno>
          <orgName>Centre Observation, Impacts, Énergie</orgName>
          <orgName type="acronym">O.I.E.</orgName>
          <desc>
            <address>
              <addrLine>CS 10207 rue Claude Daunesse 06904 Sophia Antipolis Cedex</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">https://www.oie.minesparis.psl.eu/Accueil/</ref>
          </desc>
          <listRelation>
            <relation active="#struct-301492" type="direct"/>
            <relation active="#struct-564132" type="indirect"/>
          </listRelation>
        </org>
        <org type="institution" xml:id="struct-252743" status="VALID">
          <idno type="ROR">https://ror.org/02nrqs528</idno>
          <orgName>Deutscher Wetterdienst [Offenbach]</orgName>
          <orgName type="acronym">DWD</orgName>
          <desc>
            <address>
              <addrLine>Frankfurter Str.135, 63067 Offenbach</addrLine>
              <country key="DE"/>
            </address>
            <ref type="url">http://www.dwd.de</ref>
          </desc>
        </org>
        <org type="laboratory" xml:id="struct-480580" status="VALID">
          <idno type="RNSR">200816947R</idno>
          <idno type="ROR">https://ror.org/03rtw5049</idno>
          <orgName>Laboratoire d'Océanographie Physique et Spatiale</orgName>
          <orgName type="acronym">LOPS</orgName>
          <date type="start">2016-01-01</date>
          <desc>
            <address>
              <addrLine>Rue Dumont D'Urville, 29280 Plouzané</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">http://www.umr-lops.fr/</ref>
          </desc>
          <listRelation>
            <relation active="#struct-67872" type="direct"/>
            <relation active="#struct-300022" type="direct"/>
            <relation active="#struct-300045" type="direct"/>
            <relation active="#struct-300314" type="direct"/>
            <relation name="UMR6523" active="#struct-441569" type="direct"/>
          </listRelation>
        </org>
        <org type="institution" xml:id="struct-343323" status="INCOMING">
          <orgName>Transvalor</orgName>
          <desc>
            <address>
              <country key="FR"/>
            </address>
          </desc>
        </org>
        <org type="institution" xml:id="struct-301492" status="VALID">
          <idno type="IdRef">026375249</idno>
          <idno type="ROR">https://ror.org/04y8cs423</idno>
          <orgName>Mines Paris - PSL (École nationale supérieure des mines de Paris)</orgName>
          <date type="start">1783-01-01</date>
          <desc>
            <address>
              <addrLine>60, boulevard Saint-Michel 75006 Paris</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">https://www.minesparis.psl.eu/</ref>
          </desc>
          <listRelation>
            <relation active="#struct-564132" type="direct"/>
          </listRelation>
        </org>
        <org type="regroupinstitution" xml:id="struct-564132" status="VALID">
          <idno type="IdRef">241597595</idno>
          <idno type="ISNI">0000 0004 1784 3645</idno>
          <idno type="ROR">https://ror.org/013cjyk83</idno>
          <orgName>Université Paris Sciences et Lettres</orgName>
          <orgName type="acronym">PSL</orgName>
          <desc>
            <address>
              <addrLine>60 rue Mazarine 75006 Paris</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">https://www.psl.eu/</ref>
          </desc>
        </org>
        <org type="institution" xml:id="struct-67872" status="VALID">
          <idno type="IdRef">050165224</idno>
          <idno type="ROR">https://ror.org/05q3vnk25</idno>
          <orgName>Institut de Recherche pour le Développement</orgName>
          <orgName type="acronym">IRD</orgName>
          <desc>
            <address>
              <addrLine>SiègeLe Sextant 44, bd de DunkerqueCS 9000913572 Marseille cedex 02</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">http://www.ird.fr/</ref>
          </desc>
        </org>
        <org type="institution" xml:id="struct-300022" status="VALID">
          <idno type="IdRef">027783073</idno>
          <idno type="ISNI">0000000121634107</idno>
          <idno type="ROR">https://ror.org/044jxhp58</idno>
          <orgName>Institut Français de Recherche pour l'Exploitation de la Mer</orgName>
          <orgName type="acronym">IFREMER</orgName>
          <date type="start">1984-01-01</date>
          <desc>
            <address>
              <country key="FR"/>
            </address>
            <ref type="url">https://wwz.ifremer.fr/</ref>
          </desc>
        </org>
        <org type="institution" xml:id="struct-300045" status="VALID">
          <idno type="IdRef">029349265</idno>
          <idno type="ISNI">0000 0001 2154 1736</idno>
          <idno type="ROR">https://ror.org/04kdfz702</idno>
          <idno type="Wikidata">Q3152437</idno>
          <orgName>Institut national des sciences de l'Univers</orgName>
          <orgName type="acronym">INSU - CNRS</orgName>
          <date type="start">2007-04-19</date>
          <desc>
            <address>
              <addrLine>INSU-CNRS3 rue Michel-Ange, 75794 Paris Cedex 16</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">https://www.insu.cnrs.fr</ref>
          </desc>
        </org>
        <org type="regroupinstitution" xml:id="struct-300314" status="VALID">
          <idno type="IdRef">291809022</idno>
          <idno type="ISNI">0000000121880893</idno>
          <idno type="ROR">https://ror.org/0372th171</idno>
          <orgName>Université de Brest</orgName>
          <orgName type="acronym">UBO EPE</orgName>
          <desc>
            <address>
              <addrLine>Université de Bretagne Occidentale - 3 Rue des Archives 29238, Brest</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">https://www.univ-brest.fr/</ref>
          </desc>
        </org>
        <org type="regroupinstitution" xml:id="struct-441569" status="VALID">
          <idno type="IdRef">02636817X</idno>
          <idno type="ISNI">0000000122597504</idno>
          <idno type="ROR">https://ror.org/02feahw73</idno>
          <orgName>Centre National de la Recherche Scientifique</orgName>
          <orgName type="acronym">CNRS</orgName>
          <date type="start">1939-10-19</date>
          <desc>
            <address>
              <country key="FR"/>
            </address>
            <ref type="url">https://www.cnrs.fr/</ref>
          </desc>
        </org>
      </listOrg>
    </back>
  </text>
</TEI>