Evolution of prodeltas : a print of glacier melting processes

• Main Authors: Baltzer, Agnès, Bourriquen, Marine, Fournier, Jérome, Mercier, Denis, Costa, Stéphane, Tolle, Florian, Bernard, Eric, Jensen, Maria
• Other Authors: Littoral, Environnement, Télédétection, Géomatique (LETG - Nantes), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Pratique des Hautes Études (EPHE), Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Brest (UBO)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut de Géographie et d'Aménagement Régional de l'Université de Nantes (IGARUN), Université de Nantes (UN)-Université de Nantes (UN), Muséum national d'Histoire naturelle (MNHN), Espaces, Nature et Culture (ENeC), Université Paris-Sorbonne (UP4)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sorbonne (UP4), Littoral, Environnement, Télédétection, Géomatique (LETG - Caen), Littoral, Environnement, Télédétection, Géomatique UMR 6554 (LETG), Normandie Université (NU)-Normandie Université (NU)-Université d'Angers (UA)-École Pratique des Hautes Études (EPHE), Université de Nantes (UN)-Université de Nantes (UN)-Université de Caen Normandie (UNICAEN), Théoriser et modéliser pour aménager (UMR 6049) (ThéMA), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC), The University Centre in Svalbard (UNIS)
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2017
• Subjects: [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology; [SHS.GEO]Humanities and Social Sciences/Geography; glacier; Kongsfjord*; Kongsfjorden
• Online Access: https://hal.science/hal-01631227; https://hal.science/hal-01631227/document; https://hal.science/hal-01631227/file/posterSvalbardneuf.pdf

International audience Coastal evolution in meters from 1966 to 2016 Prodeltas evolution in meters from 1966 to 2012 from side scan mosaics the Shoreline evolution measured by calculation between reference points Ice evolution than processes control coastal high-latitudes and how they will Coastal evolution in meters from 1966 to 2016 Question 1 : What are the effects of the glacier retreat on the hydrographic network ? First results show a decrease of the drainage density and the width of the active band which conducts to a clear concentration of the hydrographic ntework. Question 2 : What is the Kongsfjorden line evolution ? Coastal areas supplied by the hydrographic network become smaller Global progradation of the coast observed from 1966 to 2016 is focused on specific areas (linked to the prodeltas localisation Question 3 :What does happen to the sediments exported into the Kibgsfjorden ? A part of these sedimentray supply is stored into the prodeltas with an extension of 40 000 m