Barnhart 2010 Glaciomarine Sediment Flux and Transportation Mechanisms, Kronebreen/Kongsvegen, Kongsfjorden, Svalbard

• Format: Dataset
• Language: unknown
• Published: Arctic Data Center 2013
• Subjects: EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > SEDIMENTS; EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE; EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GLACIERS/ICE SHEETS > GLACIER MASS BALANCE/ICE SHEET MASS BALANCE; EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > LAKE LEVELS; EARTH SCIENCE > PALEOCLIMATE > LAND RECORDS > SEDIMENTS; EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > SEDIMENTS; EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > VARVE DEPOSITS; EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > DEGRADATION; EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > SEDIMENT TRANSPORT; EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > GLACIER MASS BALANCE/ICE SHEET MASS BALANCE; EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > SEDIMENT TRANSPORT; EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > TURBIDITY; EARTH SCIENCE > LAND SURFACE > LAND TEMPERATURE > LAND SURFACE TEMPERATURE; EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > ENTRAINMENT; EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GLACIERS/ICE SHEETS > GLACIERS; EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > GLACIERS; EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > SEDIMENTATION; EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > SOIL TEMPERATURE; EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > PERIGLACIAL PROCESSES; EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > SUSPENDED SOLIDS; IN SITU/LABORATORY INSTRUMENTS > SAMPLERS > GRABBERS/TRAPS/COLLECTORS > SEDIMENT TRAPS; IN SITU/LABORATORY INSTRUMENTS > CORERS > SEDIMENT CORERS; IN SITU/LABORATORY INSTRUMENTS > CONDUCTIVITY SENSORS > CONDUCTIVITY METERS; EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > PHOTON/OPTICAL DETECTORS > CAMERAS > CAMERAS; EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > PROFILERS/SOUNDERS > TEMPERATURE PROFILERS; IN SITU/LABORATORY INSTRUMENTS > RECORDERS/LOGGERS > TEMPERATURE LOGGERS; IN SITU/LABORATORY INSTRUMENTS > GAUGES > STREAM GAUGES; EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > POSITIONING/NAVIGATION > GPS > GPS > GLOBAL POSITIONING SYSTEM; EARTH REMOTE SENSING INSTRUMENTS > ACTIVE REMOTE SENSING > PROFILERS/SOUNDERS > ACOUSTIC SOUNDERS > ECHO SOUNDERS; IN SITU/LABORATORY INSTRUMENTS > PROBES > PROBES; IN SITU/LABORATORY INSTRUMENTS > CORERS > CORING DEVICES; IN SITU/LABORATORY INSTRUMENTS > PROBES > STEEL MEASURING TAPE; IN SITU/LABORATORY INSTRUMENTS > CURRENT/WIND METERS > CURRENT METERS; MANNED FIELD STATION; HOURLY TO DAILY; DAILY TO WEEKLY; ANNUAL; 1 MINUTE TO 1 HOUR; MONTHLY TO ANNUAL; WEEKLY TO MONTHLY; Arctic; Kongsvegen; Kronebreen; Svalbard; glacier; Ice Sheet; Kongsfjord*; Kongsfjorden; Tidewater
• Online Access: https://search.dataone.org/view/urn:uuid:68d14918-f107-4865-9136-afb9cfe5502a

Abstract: Arctic tidewater glaciers are likely to respond rapidly to changes in climate, due to a variety of climate forcing mechanisms. This study is designed to assess how these glaciers are now responding to these changes. We collected marine sediment samples near Kronebreen/Kongsvegan, a polythermal subpolar tidewater glacier in Kongsfjorden, Svalbard, over the summer melt season of 2009. CTD/OBS and meteorological data were also collected to characterize this dynamic Arctic system. One-to-three-day modern sediment records were collected near the top, the middle, and the bottom of the fjord water column with mooring locations ranging in depth from 20 to 120 m below sea level. Accumulation rates from the bottommost sediment traps of 380, 220, and 160 kg/m2/yr were found at 0.45, 0.75, and 1.00 km, respectively, from the ice-marginal delta on the southern edge of Kronebreen/Kongsvegan. Sedimentation rates appear to decrease logarithmically away from the ice-marginal delta. Couplets of coarse and fine sediment were found in sediment traps from the meltwater sediment plume indicating a diurnal meltwater discharge pattern. The couplets may be due more to solar incidence than to temperature and precipitation. Tidal current velocity may play a role in differentiating coarse and fine particles as they are released from the meltwater sediment plume, but there is not sufficient evidence to test for this fully.