{"refrec":{"BRefID":67132,"RR":"<b>De Cauwer, V.; Ruddick, K.; Park, Y.; Nechad, B.; Kyramarios, M.</b> (2004). Optical remote sensing in support of eutrophication monitoring in the southern North Sea. <i>EARSeL eProc. 3(2)</i>: 208-221","BEntID":63499,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":1,"RefStringPartII":". <i>EARSeL eProc. 3(2)</i>: 208-221","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"De Cauwer, V.; Ruddick, K.; Park, Y.; Nechad, B.; Kyramarios, M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"De Cauwer, V. <i>et al.</i>","Englishabstract":"Spring mean and maximum chlorophyll <i>a</i> (chl<i>a</i>) concentrations are main factors to determine the eutrophication status of the Belgian waters as agreed within OSPAR in 2002. Other important assessment parameters to measure the degree of nutrient enrichment - the amounts of inorganic phosphate and nitrogen in winter - appeared to be above thresholds for most measurements performed in the period 1974-2002. As the standard in situ monitoring programme does not give a clear picture of the temporal and spatial distribution of chl <i>a</i>, it is logical to complement these measurements with optical remote sensing. However, chlorophyll concentrations derived from sensors such as SeaWiFS are unreliable in the Case 2 waters of this region because of high particulate and dissolved yellow substance absorption. Another important limitation of ocean colour sensors is the amount of useful images due to cloud cover. The combination of data from different ocean colour sensors in order to enable a better temporal coverage might be hampered by the different chlorophyll retrieval algorithms used. This study compares different global chl <i>a</i> algorithms (MODIS, SeaWiFS, MERIS) as well as a turbid water algorithm for the Southern North Sea. This is done by running the different algorithms on in situ reflectance spectra collected at 107 stations in the period 2001-2002 over the Southern North Sea and comparing them with <i>in situ</i> chl <i>a</i> concentrations, as well as by running the algorithms on a MERIS image of the 29th of July 2002. Based on this validation the accuracy of these products and their suitability for eutrophication monitoring in the Southern North Sea are assessed.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Optical remote sensing in support of eutrophication monitoring in the southern North Sea","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2025-07-02 08:33:14.980000","timezone_type":1,"timezone":"+00:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2004,"MonPub":null,"DateUpdate":"2007-04-18","DateCreate":"2004-10-13","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":1},"refs":null,"anarec":{"AnaID":67132,"PubliDate":2004,"Pagination":"208-221","XtraPublOfAnaID":null,"ISBN":null,"Volume":"3","Issue":"2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":67106,"SerRR":"EARSeL eProceedings. European Association of Remote Sensing Laboratories: Paris.  ISSN 1729-3782; e-ISSN 1729-3782","StandardTitleSer":"EARSeL eProceedings","ISSN":"1729-3782","AbbrevSer":"EARSeL eProc.","StandardTitleMon":null,"StartPage":208,"Pages":14,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":{"Line1":"Gulledelle 100","Email":"greenmap@iway.na","Line2":null,"EnvName":"Belgium"},"othpubs":null,"ownerships":null,"authors":[{"AutName":"De Cauwer","Firstname":null,"Initials":"V.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":63499,"AutID":47722,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":5251,"InsID":null},{"AutName":"Ruddick","Firstname":"Kevin","Initials":"K.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":63499,"AutID":43294,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":2785,"InsID":null},{"AutName":"Park","Firstname":null,"Initials":"Y.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":63499,"AutID":47721,"OrderNr":3,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":12371,"InsID":null},{"AutName":"Nechad","Firstname":"Bouchra","Initials":"B.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":63499,"AutID":47723,"OrderNr":4,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":2781,"InsID":null},{"AutName":"Kyramarios","Firstname":"Michael","Initials":"M.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":63499,"AutID":49286,"OrderNr":5,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":2772,"InsID":null}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":[{"BInstID":63294,"LibID":36,"BRefID":67132,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":1,"ShelfLocCode":"63294","RFID":null,"PaidValue":null,"Medium":"Server","Description":"VLIZ Open Access","Acronym":"VLIZ","Library":"Vlaams Instituut voor de Zee","DutchTerm":"Open access","URL":null,"ClassifID":53,"Classification":"Open access","ReqLink":null,"ClassifTypID":1,"URLLocation":"https://www.vliz.be/imisdocs/publications/","SubDir":null,"InternalReq":0,"LoggedInReq":0,"Disclaimer":null,"DutchDisclaimer":null,"FileFormat":".pdf","FileDescr":"pdf","InsPub":1,"InsID":36,"FileFormID":6,"LendableFlag":1,"PublicFlag":1,"orderLib":"A","Notes":null,"AccConID":null,"AccessConstraint":null,"LicURL":null}],"litstyles":null,"thespers":null,"arch2discl":null,"SERpubls":[{"PublName":"European Association of Remote Sensing Laboratories","City":"Paris"}],"MONpubls":null,"pictures":[],"thestermsPath":[{"ThesaurusTerm":"ANE, North Sea, Southern Bight","ThestID":182113,"Acronym":"ASFA_GEOT","ThesTermPath":"ANE, North Sea, Southern Bight"},{"ThesaurusTerm":"Belgium","ThestID":183110,"Acronym":"ASFA_GEOT","ThesTermPath":"Belgium"},{"ThesaurusTerm":"Eutrophication","ThestID":2932,"Acronym":"ASFA","ThesTermPath":"Eutrophication"},{"ThesaurusTerm":"Monitoring","ThestID":5312,"Acronym":"ASFA","ThesTermPath":"Monitoring"},{"ThesaurusTerm":"Remote sensing","ThestID":6864,"Acronym":"ASFA","ThesTermPath":"Remote sensing"}],"thestermsASFA":[{"ThesaurusTerm":"ANE, North Sea, Southern Bight"},{"ThesaurusTerm":"Belgium"},{"ThesaurusTerm":"Eutrophication"},{"ThesaurusTerm":"Monitoring"},{"ThesaurusTerm":"Remote sensing"}],"taxtermsASFA":null,"geotermsASFA":[{"GeoTerm":"Belgian Exclusive Economic Zone"},{"GeoTerm":"Southern Bight"}],"collections":[{"Collection":"ISECA","ShortName":"ISECA"},{"Collection":"OMA - Open Marien Archief","ShortName":"OMA"},{"Collection":"VLIZ Acknowledged Publications","ShortName":"VLIZ ackn"}],"conf":null,"proj":[{"ProID":1989,"Acronym":"BELCOLOUR 1","ProStandardTitle":"BELCOLOUR - Optical remote sensing of coastal waters","BYear":2001,"BMonth":12,"EYear":2006,"EMonth":6,"FP7Code":null,"RelID":null,"Relation":null,"DutchTerm":null}],"Physdatasets":null,"spcols":{"222":{"SpName":"BMB - Belgische Mariene Bibliografie","SpColID":222,"ParSpColID":null,"TopParID":null,"ShortName":"BMB","URLLocation":null,"LibID":36,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"BMB"},"678":{"SpName":"ISECA","SpColID":678,"ParSpColID":null,"TopParID":null,"ShortName":"ISECA","URLLocation":null,"LibID":null,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"ISECA"},"221":{"SpName":"OMA - Open Marien Archief","SpColID":221,"ParSpColID":null,"TopParID":null,"ShortName":"OMA","URLLocation":null,"LibID":36,"OpenRepoFlag":1,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"OMA"},"39":{"SpName":"VLIZ Acknowledged Publications","SpColID":39,"ParSpColID":null,"TopParID":null,"ShortName":"VLIZ ackn","URLLocation":null,"LibID":36,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"VLIZ ackn"},"103":{"SpName":"Zeeleeuw acknowledged","SpColID":103,"ParSpColID":39,"TopParID":39,"ShortName":"zeeleeuw","URLLocation":null,"LibID":36,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":39,"SpColPath":"VLIZ ackn/zeeleeuw"}},"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":63499,"AbstractFlag":-1,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"},{"BEntID":63499,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":null,"thesterms":[{"ThesaurusTerm":"ANE, North Sea, Southern Bight","ThestID":182113,"Acronym":"ASFA_GEOT","ThesTypID":34,"ThesType":"ASFA Geoterms"},{"ThesaurusTerm":"Belgium","ThestID":183110,"Acronym":"ASFA_GEOT","ThesTypID":34,"ThesType":"ASFA Geoterms"},{"ThesaurusTerm":"Eutrophication","ThestID":2932,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Monitoring","ThestID":5312,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Remote sensing","ThestID":6864,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxterms":null,"geoterms":[{"GeoTerm":"Belgian Exclusive Economic Zone","GeoObjectID":3293,"GeotID":91},{"GeoTerm":"Southern Bight","GeoObjectID":2399,"GeotID":395}],"othterms":null,"asfacodes":null,"asfa2codes":null,"thestermsFRIS":[{"ThesaurusTerm":"ANE, North Sea, Southern Bight","DutchTerm":null,"ThestID":182113,"Acronym":"ASFA_GEOT","ThesTypID":34,"ThesType":"ASFA Geoterms"},{"ThesaurusTerm":"Belgium","DutchTerm":null,"ThestID":183110,"Acronym":"ASFA_GEOT","ThesTypID":34,"ThesType":"ASFA Geoterms"},{"ThesaurusTerm":"Eutrophication","DutchTerm":"Eutrofiëring","ThestID":2932,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Monitoring","DutchTerm":"Monitoring","ThestID":5312,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Remote sensing","DutchTerm":"Teledetectie","ThestID":6864,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxtermsFRIS":null,"geotermsFRIS":[{"GeoTerm":"Belgian Exclusive Economic Zone","DutchTerm":"België"},{"GeoTerm":"Southern Bight","DutchTerm":"Zuidelijke Bocht"}],"othtermsFRIS":null,"resmessage":"","complete":1,"sessions":{"newSesName":"VLIZ2000\\stevenc","newSesDate":{"date":"2004-10-13 11:41:33.187000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Haspeslagh, Jan, J.","updSesDate":{"date":"2007-04-18 09:55:12.813000","timezone_type":3,"timezone":"Europe/Brussels"}}}