{"refrec":{"BRefID":25277,"RR":"<b>De Moor, G.</b> (2002). Evaluation de la morphodynamique sous-marine en Mer du Nord méridionale au cours de la période 1985-1995 = Evaluation of sea-floor sediment dynamics in the Flemish Banks (southern North Sea) between 1985 and 1995. <i>Géomorphologie 2</i>: 179-194","BEntID":25277,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Géomorphologie 2</i>: 179-194","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"De Moor, G.","OrigTitleTranslFlag":0,"Authorstringtrunc":"De Moor, G.","Englishabstract":"The aim of the paper is to evaluate and map changes in sea-floor elevation in a marine sandy epeiric environment as a tool in research on present-day sea floor sediment dynamics, especially of bank summits and swale floors, and to assess the mobility of banks and sand waves from sounding and hydrographic maps and from hypsometric profiles provided by sequential bathymetric campaigns along fixed tracks. It provides a review of data acquisition techniques and data processing methods. It focuses on stability maps and on morphometric methods, especially on trend maps of elevation change. Superposed profiles and serial profiles allow to study in more detail the displacement of banks, the progression or retreat of bank flanks, sand-wave mobility and other related topics. It shows that each method has its own specific application field but that all are complementary. The paper presents numerous examples of application of different methods to the Flemish Banks. It also mentions the potential of new technologies developed since the 1990s: multi-beam bathymetry, local relief mapping and the interpretation of satellite images. It discusses the specific support of side-scan sonar to bathymetric pro- filing and to echogram interpretation.","AbstractOtherLang":"L'article a pour but d'évaluer et de cartographier les tendances à l'abaissement et au rehaussement du fond marin dans un milieu épicontinental sableux, plus spécialement du sommet des bancs de sable et du fond des chenaux, et d'étudier la mobilité des formes à partir de campagnes bathymétriques séquentielles le long de lignes fixes. Il donne un aperçu des méthodes de traitement et des technologies de collecte de données, devenues disponibles au cours de la période 1980-1995, et par lesquelles une évaluation numérique est devenue possible. Il traite plus en détail de la carte de stabilité, ainsi que des méthodes morphométriques, dont celle des cartes de tendance du changement altimétrique, et livre une synthèse cartographique couvrant de longs suivis avec de très nombreuses données. Les profils superposés et les profils sériels servent surtout à étudier en détail le déplacement des bancs, l'avancement ou le recul des flancs, la mobilité des dunes hydrauliques et autres aspects spécifiques. L'article montre la complémentarité des différentes méthodes. Il présente de nombreux exemples d'application aux Bancs de Flandre pour la période 1987-1994. Il mentionne les possibilités des nouvelles techniques en voie de développement depuis 1995 (bathymétrie à l'écho-sondeur multi-faisceaux, levé de cartes de différences de hauteur, apport des levés au sonar à balayage latéral, interprétation d'images satellitaires} et montre aussi l'apport des levés au sonar à balayage latéral à la bathymétrie opérationnelle et à l'interprétation des échogrammes.","BibLvlCode":"AS","StandardTitle":"Evaluation de la morphodynamique sous-marine en Mer du Nord méridionale au cours de la période 1985-1995 = Evaluation of sea-floor sediment dynamics in the Flemish Banks (southern North Sea) between 1985 and 1995","OrigTitleLangCode":"fr","OrigTitleLangCodeExtended":"fre","OrigTitleLangID":22,"DateLastModified":{"date":"2025-07-02 08:33:14.980000","timezone_type":1,"timezone":"+00:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":"Flemish Banks, 1985 - 1995","Notes":null,"AnaPub":2002,"MonPub":null,"DateUpdate":"2003-06-27","DateCreate":"2002-06-21","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":25277,"PubliDate":2002,"Pagination":"179-194","XtraPublOfAnaID":null,"ISBN":null,"Volume":"2","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":191912,"SerRR":"Géomorphologie : relief, processus, environnement. 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