title: Deltas, freshwater discharge, and waves along the Young Sound, NE Greenland.
abstract: A wide range of delta morphologies occurs along the fringes of the Young Sound in Northeast Greenland due to spatial heterogeneity of delta regimes. In general, the delta regime is related to catchment and basin characteristics (geology, topography, drainage pattern, sediment availability, and bathymetry), fluvial discharges and associated sediment load, and processes by waves and currents. Main factors steering the Arctic fluvial discharges into the Young Sound are the snow and ice melt and precipitation in the catchment, and extreme events like glacier lake outburst floods (GLOFs). Waves are subordinate and only rework fringes of the delta plain forming sandy bars if the exposure and fetch are optimal. Spatial gradients and variability in driving forces (snow and precipitation) and catchment characteristics (amount of glacier coverage, sediment characteristics) as well as the strong and local influence of GLOFs in a specific catchment impede a simple upscaling of sediment fluxes from individual catchments toward a total sediment flux into the Young Sound.
authors.affiliation: Department of Geosciences and Natural Resource Management, University of Copenhagen, Øster Voldgade 10, 1350, Copenhagen, Denmark. ak@ign.ku.dk.
authors.forename: Aart
authors.initials: A
authors.lastname: Kroon
authors.affiliation: Asiaq, Greenland Survey, Postbox 1003, 3900, Nuuk, Greenland.
authors.forename: Jakob
authors.initials: J
authors.lastname: Abermann
authors.affiliation: Department of Geosciences and Natural Resource Management, University of Copenhagen, Øster Voldgade 10, 1350, Copenhagen, Denmark.
authors.forename: Mette
authors.initials: M
authors.lastname: Bendixen
authors.affiliation: Department of Bioscience, Arctic Research Centre, Aarhus University, Frederiksborgvej 399, 4000, Roskilde, Denmark.
authors.forename: Magnus
authors.initials: M
authors.lastname: Lund
authors.affiliation: Department of Geosciences and Natural Resource Management, University of Copenhagen, Øster Voldgade 10, 1350, Copenhagen, Denmark.
authors.forename: Charlotte
authors.initials: C
authors.lastname: Sigsgaard
authors.affiliation: Department of Geosciences and Natural Resource Management, University of Copenhagen, Øster Voldgade 10, 1350, Copenhagen, Denmark.|Department of Bioscience, Arctic Research Centre, Aarhus University, Frederiksborgvej 399, 4000, Roskilde, Denmark.
authors.forename: Kirstine
authors.initials: K
authors.lastname: Skov
authors.affiliation: Department of Geosciences and Natural Resource Management, University of Copenhagen, Øster Voldgade 10, 1350, Copenhagen, Denmark.
authors.forename: Birger Ulf
authors.initials: BU
authors.lastname: Hansen
mesh_terms: D001110:Arctic Regions; D057231:Climate Change; D064308:Ecological Parameter Monitoring; D005618:Fresh Water; D005843:Geography; D019015:Geologic Sediments; D006116:Greenland; D046448:Ice Cover; D008685:Meteorological Concepts; D012621:Seasons; D014872:Water Movements
keywords: Arctic catchments; Climatic drivers; Delta morphology; Delta regime; Fluvial discharges