Pompeani 2009 A 360 year Varve-Based Climate Reconstruction from Linnévatnet on Western Svalbard

• Main Author: ACADIS Community Support
• 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; inlandWaters; oceans; environment; climatologyMeteorologyAtmosphere; Svalbard; Svalbard Archipelago; Jan Mayen; Pratt; Snyder; Isfjord; Linnévatnet; Linnébreen; Linnédalen; Linnéelva; glacier; Ice Sheet; Isfjord*; North Atlantic; Spitsbergen
• Online Access: https://doi.org/10.18739/A2VG7D

Abstract: Linnévatnet (78.05° N; 13.8° E; 12 m asl) is a proglacial lake located on the western coast of Spitsbergen, the largest island of the Svalbard archipelago. The 5.75 km² lake is set in a 35.3 km² catchment and fed by the glacier, Linnébreen, (1.7 km²) along with several small cirque glaciers. Currently, Linnébreen covers roughly 5% of the watershed in the valley of Linnédalen. The vast majority of sediment is moved into the lake during the early summer snow melt; however, particularly warm summers increase sediment transport from the landscape into the lake as the glacier continues to generate melt-water (Werner et al., 2008; McKay, 2005). Previous sedimentological studies (Pratt, 2006; Leon, 2006; Yellen, 2006; Snyder et al., 2000) have focused on sediment cores recovered from basins proximal to the inflow delta of Linnéelva in 10 to 15 meters water depth. These studies have shown that the sediments are annually laminated (varved) in these locations. Here we present results of varve thickness measurements from two sediment cores from mooring G (B1-08, B2-08) taken in the deepest basin (35 m water depth), located in the distal northerly portion of the lake. High resolution thin section analyses down both cores find that varve thickness trends are in agreement. Increasing annual varve thickness measurements show a positive correlation (r² = 0.32, 0.18 P < 0.01) with yearly historic summer (July-August) temperature measurements from a meteorological station at Isfjord Radio Station (1947-2003 AD). External forcings (solar, volcanic, etc) appear to play a key role in environmental change, especially prior (< 1850 AD) to increased anthropogenic aerosols and CO2. Despite the relatively short length, Linnévatnet’s varve record adds to the few high-resolution climate data in a region critical for understand earth’s climate system.