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                              <gmd:CI_DateTypeCode codeList="http://standards.iso.org/iso/19139/resources/gmxCodelists.xml#CI_DateTypeCode"
                                                   codeListValue="publication">Publication</gmd:CI_DateTypeCode>
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         <gmd:descriptiveKeywords>
            <gmd:MD_Keywords>
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                  <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/featureconcept/OceanographicGeographicalFeatures">Oceanographic Geographical Features</gmx:Anchor>
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               <gmd:type>
                  <gmd:MD_KeywordTypeCode codeList="http://standards.iso.org/iso/19139/resources/gmxCodelists.xml#MD_KeywordTypeCode"
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               <gmd:thesaurusName>
                  <gmd:CI_Citation>
                     <gmd:title>
                        <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/featureconcept/">INSPIRE Registry: feature concepts</gmx:Anchor>
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                     <gmd:date>
                        <gmd:CI_Date>
                           <gmd:date>
                              <gco:Date>2013-03-25</gco:Date>
                           </gmd:date>
                           <gmd:dateType>
                              <gmd:CI_DateTypeCode codeList="http://standards.iso.org/iso/19139/resources/gmxCodelists.xml#CI_DateTypeCode"
                                                   codeListValue="publication">Publication</gmd:CI_DateTypeCode>
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         </gmd:descriptiveKeywords>
         <gmd:descriptiveKeywords>
            <gmd:MD_Keywords>
               <gmd:keyword>
                  <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/PriorityDataset/dir-2008-56">Directive 2008/56/EC</gmx:Anchor>
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                  <gmd:MD_KeywordTypeCode codeList="http://standards.iso.org/iso/19139/resources/gmxCodelists.xml#MD_KeywordTypeCode"
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               <gmd:thesaurusName>
                  <gmd:CI_Citation>
                     <gmd:title>
                        <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/PriorityDataset">INSPIRE Registry: Priority Datasets</gmx:Anchor>
                     </gmd:title>
                     <gmd:date>
                        <gmd:CI_Date>
                           <gmd:date>
                              <gco:Date>2018-04-04</gco:Date>
                           </gmd:date>
                           <gmd:dateType>
                              <gmd:CI_DateTypeCode codeList="http://standards.iso.org/iso/19139/resources/gmxCodelists.xml#CI_DateTypeCode"
                                                   codeListValue="publication">Publication</gmd:CI_DateTypeCode>
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                        </gmd:CI_Date>
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                  </gmd:CI_Citation>
               </gmd:thesaurusName>
            </gmd:MD_Keywords>
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         <gmd:descriptiveKeywords>
            <gmd:MD_Keywords>
               <gmd:keyword xsi:type="gmd:PT_FreeText_PropertyType">
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                        <gmd:LocalisedCharacterString locale="#EN">marine monitoring</gmd:LocalisedCharacterString>
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                     <gmd:textGroup>
                        <gmd:LocalisedCharacterString locale="#FR">surveillance du milieu marin</gmd:LocalisedCharacterString>
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                     <gmd:textGroup>
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               </gmd:keyword>
               <gmd:keyword xsi:type="gmd:PT_FreeText_PropertyType">
                  <gmx:Anchor xlink:href="http://www.eionet.europa.eu/gemet/concept/1391">chlorophyll</gmx:Anchor>
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                     <gmd:textGroup>
                        <gmd:LocalisedCharacterString locale="#DE">Chlorophyll</gmd:LocalisedCharacterString>
                     </gmd:textGroup>
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                        <gmd:LocalisedCharacterString locale="#EN">chlorophyll</gmd:LocalisedCharacterString>
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                     <gmd:textGroup>
                        <gmd:LocalisedCharacterString locale="#FR">chlorophylle</gmd:LocalisedCharacterString>
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                        <gmd:LocalisedCharacterString locale="#NL">chlorofyl</gmd:LocalisedCharacterString>
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               <gmd:keyword xsi:type="gmd:PT_FreeText_PropertyType">
                  <gmx:Anchor xlink:href="http://www.eionet.europa.eu/gemet/concept/2882">environmental monitoring</gmx:Anchor>
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               <gmd:keyword xsi:type="gmd:PT_FreeText_PropertyType">
                  <gmx:Anchor xlink:href="http://www.eionet.europa.eu/gemet/concept/15228">Marine Strategy Framework Directive</gmx:Anchor>
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               </gmd:type>
               <gmd:thesaurusName>
                  <gmd:CI_Citation>
                     <gmd:title>
                        <gmx:Anchor xlink:href="http://www.eionet.europa.eu/gemet/en/themes">GEMET - Concepts, version 4.2.1</gmx:Anchor>
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                        <gmd:CI_Date>
                           <gmd:date>
                              <gco:Date>2021-06-01</gco:Date>
                           </gmd:date>
                           <gmd:dateType>
                              <gmd:CI_DateTypeCode codeList="http://standards.iso.org/iso/19139/resources/gmxCodelists.xml#CI_DateTypeCode"
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         <gmd:descriptiveKeywords>
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               <gmd:type>
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               <gmd:thesaurusName>
                  <gmd:CI_Citation>
                     <gmd:title>
                        <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/SpatialScope">INSPIRE Registry: Spatial scope</gmx:Anchor>
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                     <gmd:date>
                        <gmd:CI_Date>
                           <gmd:date>
                              <gco:Date>2019-05-22</gco:Date>
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                           <gmd:dateType>
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               <gmd:otherConstraints>
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               <gmd:otherConstraints>
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         </gmd:resourceConstraints>
         <gmd:resourceConstraints>
            <gmd:MD_LegalConstraints>
               <gmd:accessConstraints>
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         <gmd:resourceConstraints>
            <gmd:MD_LegalConstraints>
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         <gmd:resourceConstraints>
            <gmd:MD_SecurityConstraints>
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         <gmd:spatialRepresentationType>
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         <gmd:language>
            <gmd:LanguageCode codeList="http://www.loc.gov/standards/iso639-2/" codeListValue="eng">English</gmd:LanguageCode>
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         <gmd:topicCategory>
            <gmd:MD_TopicCategoryCode>oceans</gmd:MD_TopicCategoryCode>
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                        <gmd:MD_Identifier>
                           <gmd:authority>
                              <gmd:CI_Citation>
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                                 <gmd:date gco:nilReason="inapplicable"/>
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                           </gmd:authority>
                           <gmd:code>
                              <gmx:Anchor xlink:href="http://marineregions.org/mrgid/2550">Belgian Coast</gmx:Anchor>
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                           <gmd:code>
                              <gmx:Anchor xlink:href="http://marineregions.org/mrgid/3293">Belgian Exclusive Economic Zone</gmx:Anchor>
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                                    codeListValue="dataset">Dataset</gmd:MD_ScopeCode>
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                           <gmd:title xsi:type="gmd:PT_FreeText_PropertyType">
                              <gmx:Anchor xlink:href="https://eur-lex.europa.eu/eli/reg/2010/1089">COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services</gmx:Anchor>
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                                    <gmd:LocalisedCharacterString locale="#EN">COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services</gmd:LocalisedCharacterString>
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                                    <gmd:LocalisedCharacterString locale="#NL">Verordening (EU) n r. 1089/2010 van de Commissie van 23 november 2010 ter uitvoering van Richtlijn 2007/2/EG van het Europees Parlement en de Raad betreffende de interoperabiliteit van verzamelingen ruimtelijke gegevens en van diensten met betrekking tot ruimtelijke gegevens</gmd:LocalisedCharacterString>
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                                    <gmd:LocalisedCharacterString locale="#FR">Règlement (UE) N° 1089/2010 de la Commission du 23 novembre 2010 portant modalités d'application de la directive 2007/2/CE du Parlement européen et du Conseil en ce qui concerne l'interopérabilité des séries et des services de données géographiques</gmd:LocalisedCharacterString>
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                                    <gmd:LocalisedCharacterString locale="#DE">Verordnung (EG) Nr. 1089/2010 der Kommission vom 23. November 2010 zur Durchführung der Richtlinie 2007/2/EG des Europäischen Parlaments und des Rates hinsichtlich der Interoperabilität von Geodatensätzen und -diensten</gmd:LocalisedCharacterString>
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                                    <gco:Date>2010-12-08</gco:Date>
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                                                         codeListValue="publication">Publication</gmd:CI_DateTypeCode>
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                     <gmd:explanation xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>See the referenced specification</gco:CharacterString>
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                              <gmd:LocalisedCharacterString locale="#EN">See the referenced specification</gmd:LocalisedCharacterString>
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                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString locale="#NL">Zie de gerefereerde specificatie</gmd:LocalisedCharacterString>
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                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString locale="#FR">Voir la spécification référencée</gmd:LocalisedCharacterString>
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                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString locale="#DE">Siehe die angegebene Spezifikation</gmd:LocalisedCharacterString>
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                        <gco:Boolean>true</gco:Boolean>
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            <gmd:LI_Lineage>
               <gmd:statement xsi:type="gmd:PT_FreeText_PropertyType">
                  <gco:CharacterString>Chlorophyll a concentration (Chl) was generated from daily data from ocean colour sensors (i.e. SeaWiFS, MODIS, MERIS, VIIRS) for the years 1998-2017. The algorithms used to derive data from the satellite sensors correspond to the best available algorithms given the optical characteristics of the considered water (i.e. turbid and clear waters). We started from a collection of well-validated operational satellite-based chlorophyll products for the Greater North Sea: 1) CMEMS nr. 67 product where Chl is estimated from the OC5ci algorithm, a combination of OCI (Hu, Lee &amp; Franz, 2012) and OC5 (Gohin, F., et al., 2008.), developed at PML and 2) red-NIR ratio algorithm developed by Gons et al. (2002, 2005) for eutrophic and turbid waters applied to remote sensing reflectance obtained by Envisat-MERIS (MEGS 8.1 processing). For each of these products it was determined for which water types, described in terms remote sensing reflectance (Rrs) spectra, they provided the most accurate chlorophyll estimations based on a variety of reference datasets from the CCRR project (Nechad et al., 2015). These reference data sets were specifically designed to test algorithms and assess their accuracy for retrieving water quality parameters such as Chl concentration. In the next phase of the Chl product generation, a blending process is applied to join chlorophyll-a datasets based on best suited algorithm/water type combination. Quality control has been applied according to the standard satellite product confidence flags for the MEGS8.1 processor, and a specialized flagging approach designed for the OC5ci and Gons algorithms. The original NetCDF file result has been converted into shapefile. The data is then dynamically made available through WFS and statically converted to an INSPIRE-compliant GML file. The INSPIRE EEA 1kmx1km reference grid has been used.</gco:CharacterString>
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                        <gmd:LocalisedCharacterString locale="#NL">Chlorofyl-a-concentratie (Chl) werd gegenereerd uit de dagelijkse gegevens van oceaankleurensensoren (dwz SeaWiFS, MODIS, MERIS, VIIRS) voor de jaren 1998-2017. De algoritmen die worden gebruikt voor het afleiden van gegevens van de satellietsensoren komen overeen met de best beschikbare algoritmen gezien de optische kenmerken van het beschouwde water (dwz troebel en helder water). We zijn begonnen met een verzameling goed gevalideerde operationele satelliet-gebaseerde chlorofylproducten voor de Grote Noordzee: 1) CMEMS nr. 67 product waarbij Chl wordt geschat op basis van het OC5ci-algoritme, een combinatie van OCI (Hu, Lee &amp; Franz, 2012) en OC5 (Gohin, F., et al., 2008), ontwikkeld bij PML en 2) rood-NIR-verhouding algoritme ontwikkeld door Gons et al. (2002, 2005) voor eutroof en troebel water toegepast op remote sensing reflectantie verkregen door Envisat-MERIS (verwerken van MEGS 8.1). Voor elk van deze producten werd bepaald voor welke watertypen, beschreven in termen van remote sensing reflectance (Rrs) spectra, zij de meest nauwkeurige chlorofylschattingen opleverden op basis van een verscheidenheid aan referentiedatasets van het CCRR-project (Nechad et al., 2015) . Deze referentiegegevenssets waren specifiek ontworpen om algoritmen te testen en hun nauwkeurigheid te beoordelen voor het ophalen van parameters voor de waterkwaliteit, zoals de Chl-concentratie. In de volgende fase van de Chl-productgeneratie wordt een mengproces toegepast om chlorofyl samen te voegen - een dataset op basis van de meest geschikte algoritme / watertype-combinatie. Kwaliteitscontrole is toegepast volgens de standaard vlaggen voor satellietvoedingsproducten voor de MEGS8.1-processor en een gespecialiseerde markeerbenadering die is ontworpen voor de OC5ci- en Gons-algoritmen. Het oorspronkelijke resultaat van het NetCDF-bestand is geconverteerd naar shapefile. De gegevens worden vervolgens dynamisch beschikbaar gemaakt via WFS en statisch geconverteerd naar een INSPIRE-compliant GML-bestand. Het referentiesysteem van INVOER EER 1kmx1km is gebruikt.</gmd:LocalisedCharacterString>
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                        <gmd:LocalisedCharacterString locale="#DE">Die Chlorophyll a-Konzentration (Chl) wurde aus täglichen Daten von Ozeanfarbsensoren (z. B. SeaWiFS, MODIS, MERIS, VIIRS) für die Jahre 1998-2017 generiert. Die zur Ableitung von Daten von den Satellitensensoren verwendeten Algorithmen entsprechen den besten verfügbaren Algorithmen angesichts der optischen Eigenschaften des betrachteten Wassers (dh trübes und klares Wasser). Wir begannen mit einer Sammlung gut validierter, satellitengestützter Chlorophyll-Produkte für die Große Nordsee: 1) CMEMS nr. 67 Produkt, bei dem Chl anhand des OC5ci-Algorithmus geschätzt wird, einer Kombination aus OCI (Hu, Lee &amp; Franz, 2012) und OC5 (Gohin, F., et al., 2008.), entwickelt bei PML und 2) Rot-NIR-Verhältnis Algorithmus, entwickelt von Gons et al. (2002, 2005) für eutrophische und trübe Wässer, die zur Fernerkundungsreflexion durch Envisat-MERIS (MEGS 8.1-Verarbeitung) eingesetzt werden. Für jedes dieser Produkte wurde ermittelt, für welche Wassertypen, in Bezug auf Fernerkundungsreflexionsspektren (Rrs-Spektren) beschrieben, die präzisesten Chlorophyll-Schätzungen basierend auf einer Reihe von Referenzdatensätzen des CCRR-Projekts (Nechad et al., 2015). . Diese Referenzdatensätze wurden speziell entwickelt, um Algorithmen zu testen und ihre Genauigkeit zum Abrufen von Wasserqualitätsparametern wie der Chl-Konzentration zu bewerten. In der nächsten Phase der Chl-Produktgeneration wird ein Blending-Prozess angewendet, um Chlorophyll-a-Datensätze basierend auf der besten Kombination aus Algorithmus und Wassertyp zusammenzufügen. Die Qualitätskontrolle wurde gemäß den Standard-Produkt-Vertrauensmerkmalen für den MEGS8.1-Prozessor und einem speziellen Kennzeichnungsansatz für die Algorithmen OC5ci und Gons angewendet. Das ursprüngliche Ergebnis der NetCDF-Datei wurde in Shapefile konvertiert. Die Daten werden dann dynamisch über WFS verfügbar gemacht und statisch in eine INSPIRE-kompatible GML-Datei konvertiert. Das Referenzraster INSPIRE EEA 1kmx1km wurde verwendet.</gmd:LocalisedCharacterString>
                     </gmd:textGroup>
                     <gmd:textGroup>
                        <gmd:LocalisedCharacterString locale="#FR">La concentration en chlorophylle a (Chl) a été générée à partir de données quotidiennes issues de capteurs de couleur de l'océan (SeaWiFS, MODIS, MERIS, VIIRS) pour les années 1998-2017. Les algorithmes utilisés pour dériver les données des capteurs satellites correspondent aux meilleurs algorithmes disponibles compte tenu des caractéristiques optiques de l'eau considérée (c'est-à-dire des eaux troubles et des eaux claires). Nous sommes partis d'une collection de produits de chlorophylle par satellite opérationnels et bien validés pour la région métropolitaine de la mer du Nord: 1) CMEMS nr. 67 produit où Chl est estimé à partir de l'algorithme OC5ci, une combinaison d'OCI (Hu, Lee et Franz, 2012) et d'OC5 (Gohin, F., et al., 2008.), développée à PML et au rapport red-NIR 2 algorithme développé par Gons et al. (2002, 2005) pour les eaux eutrophes et troubles appliquées à la réflectance de télédétection obtenue par Envisat-MERIS (traitement MEGS 8.1). Pour chacun de ces produits, il a été déterminé pour quels types d'eau, décrits en termes de spectres de réflectance de télédétection (Rrs), ils ont fourni les estimations les plus précises de la chlorophylle basées sur divers jeux de données de référence issus du projet CCRR (Nechad et al., 2015). . Ces ensembles de données de référence ont été spécialement conçus pour tester les algorithmes et évaluer leur précision afin de récupérer des paramètres de qualité de l'eau tels que la concentration en Chl. Dans la phase suivante de la génération du produit Chl, un processus de mélange est appliqué pour joindre les jeux de données chlorophylle-a basés sur la combinaison algorithme / type d'eau la mieux adaptée. Le contrôle de la qualité a été appliqué conformément aux indicateurs de confiance des produits satellite standard pour le processeur MEGS8.1 et à une approche de marquage spécialisée conçue pour les algorithmes OC5ci et Gons. Le résultat du fichier NetCDF d'origine a été converti en fichier de formes. Les données sont ensuite rendues disponibles de manière dynamique via WFS et converties de manière statique en un fichier GML compatible INSPIRE. La grille de référence INSPIRE EEA 1 km x 1 km a été utilisée.</gmd:LocalisedCharacterString>
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                        <gmd:LocalisedCharacterString locale="#EN">Chlorophyll a concentration (Chl) was generated from daily data from ocean colour sensors (i.e. SeaWiFS, MODIS, MERIS, VIIRS) for the years 1998-2017. The algorithms used to derive data from the satellite sensors correspond to the best available algorithms given the optical characteristics of the considered water (i.e. turbid and clear waters). We started from a collection of well-validated operational satellite-based chlorophyll products for the Greater North Sea: 1) CMEMS nr. 67 product where Chl is estimated from the OC5ci algorithm, a combination of OCI (Hu, Lee &amp; Franz, 2012) and OC5 (Gohin, F., et al., 2008.), developed at PML and 2) red-NIR ratio algorithm developed by Gons et al. (2002, 2005) for eutrophic and turbid waters applied to remote sensing reflectance obtained by Envisat-MERIS (MEGS 8.1 processing). For each of these products it was determined for which water types, described in terms remote sensing reflectance (Rrs) spectra, they provided the most accurate chlorophyll estimations based on a variety of reference datasets from the CCRR project (Nechad et al., 2015). These reference data sets were specifically designed to test algorithms and assess their accuracy for retrieving water quality parameters such as Chl concentration. In the next phase of the Chl product generation, a blending process is applied to join chlorophyll-a datasets based on best suited algorithm/water type combination. Quality control has been applied according to the standard satellite product confidence flags for the MEGS8.1 processor, and a specialized flagging approach designed for the OC5ci and Gons algorithms. The original NetCDF file result has been converted into shapefile. The data is then dynamically made available through WFS and statically converted to an INSPIRE-compliant GML file. The INSPIRE EEA 1kmx1km reference grid has been used.</gmd:LocalisedCharacterString>
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            </gmd:LI_Lineage>
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