caa a22 4500 475827473 CHVBK 20180406123832.0 cr unu---uuuuu 170329e20001201xx s 000 0 eng 10.1007/s005310000113 doi (NATIONALLICENCE)springer-10.1007/s005310000113 Coastal erosion vs riverine sediment discharge in the Arctic Shelf seas [Elektronische Daten] [Volker Rachold, Mikhail N. Grigoriev, Felix E. Are, Steve Solomon, Erk Reimnitz, Heidemarie Kassens, Martin Antonow] Abstract.: This article presents a comparison of sediment input by rivers and by coastal erosion into both the Laptev Sea and the Canadian Beaufort Sea (CBS). New data on coastal erosion in the Laptev Sea, which are based on field measurements and remote sensing information, and existing data on coastal erosion in the CBS as well as riverine sediment discharge into both the Laptev Sea and the CBS are included. Strong regional differences in the percentages of coastal erosion and riverine sediment supply are observed. The CBS is dominated by the riverine sediment discharge (64.45×106 t a-1) mainly of the Mackenzie River, which is the largest single source of sediments in the Arctic. Riverine sediment discharge into the Laptev Sea amounts to 24.10×106 t a-1, more than 70% of which are related to the Lena River. In comparison with the CBS, the Laptev Sea coast on average delivers approximately twice as much sediment mass per kilometer, a result of higher erosion rates due to higher cliffs and seasonal ice melting. In the Laptev Sea sediment input by coastal erosion (58.4×106 t a-1) is therefore more important than in the CBS and the ratio between riverine and coastal sediment input amounts to 0.4. Coastal erosion supplying 5.6×106 t a-1 is less significant for the sediment budget of the CBS where riverine sediment discharge exceeds coastal sediment input by a factor of ca. 10. Springer-Verlag, 2000 Laptev Sea Beaufort Sea Coastal erosion Fluvial sediment discharge Sediment budget nationallicence Rachold Volker Alfred Wegener Institute for Polar and Marine Research, Research Unit Potsdam, Telegrafenberg A43, 14473 Potsdam, Germany aut Grigoriev Mikhail N. Permafrost Institute, Yakutsk, RAS, 677018 Yakutsk, Russia aut Are Felix E. Petersburg State University of Means of Communications, 9 Moskovsky, 190031 St. Petersburg, Russia aut Solomon Steve Geological Survey of Canada (Atlantic), P.O. Box 1006, Dartmouth, Nova Scotia, Canada B2Y 4A aut Reimnitz Erk U.S. Geological Survey, 345 Middlefield Road, MS 999, Menlo Park, CA 94025, USA aut Kassens Heidemarie Geomar Research Center, Wischhofstrasse 1-3, 24148 Kiel, Germany aut Antonow Martin Freiberg Academy of Mining and Technology, Institute for Geology, Bernhard-von-Cotta-Strasse 2, 09596 Freiberg, Germany aut https://doi.org/10.1007/s005310000113 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s005310000113 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rachold Volker Alfred Wegener Institute for Polar and Marine Research, Research Unit Potsdam, Telegrafenberg A43, 14473 Potsdam, Germany aut NATIONALLICENCE 700 1- Grigoriev Mikhail N. Permafrost Institute, Yakutsk, RAS, 677018 Yakutsk, Russia aut NATIONALLICENCE 700 1- Are Felix E. Petersburg State University of Means of Communications, 9 Moskovsky, 190031 St. Petersburg, Russia aut NATIONALLICENCE 700 1- Solomon Steve Geological Survey of Canada (Atlantic), P.O. Box 1006, Dartmouth, Nova Scotia, Canada B2Y 4A aut NATIONALLICENCE 700 1- Reimnitz Erk U.S. Geological Survey, 345 Middlefield Road, MS 999, Menlo Park, CA 94025, USA aut NATIONALLICENCE 700 1- Kassens Heidemarie Geomar Research Center, Wischhofstrasse 1-3, 24148 Kiel, Germany aut NATIONALLICENCE 700 1- Antonow Martin Freiberg Academy of Mining and Technology, Institute for Geology, Bernhard-von-Cotta-Strasse 2, 09596 Freiberg, Germany aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer