A5020584402- Geology and Paleoclimatology Research
- Methane Hydrates and Related Phenomena
- Geological Studies and Exploration
- Hydrocarbon exploration and reservoir analysis
- Geological formations and processes
- Marine and environmental studies
- Isotope Analysis in Ecology
- Geological and Geophysical Studies
- Geochemistry and Geologic Mapping
- Paleontology and Stratigraphy of Fossils
- Pleistocene-Era Hominins and Archaeology
- Climate change and permafrost
- Arctic and Antarctic ice dynamics
- Archaeology and ancient environmental studies
- Cryospheric studies and observations
- Marine and coastal ecosystems
- Atmospheric and Environmental Gas Dynamics
- Orthopaedic implants and arthroplasty
- Orthopedic Infections and Treatments
- Geological Modeling and Analysis
- Indigenous Studies and Ecology
- Neurogenetic and Muscular Disorders Research
- Mining and Resource Management
- Infectious Diseases and Tuberculosis
- Mercury impact and mitigation studies
Leibniz Institute for Baltic Sea Research
2012-2023
Faculty of 1000 (United States)
2021
National University of Tierra del Fuego
2021
Aarhus University
2020
Uni Research (Norway)
2018
Bjerknes Centre for Climate Research
2017-2018
University of Bergen
2017
Vrije Universiteit Amsterdam
2017
Orthopädische Universitätsklinik
1985
The transition from hunter-gatherer-fisher groups to agrarian societies is arguably the most significant change in human prehistory. In European plain there evidence for fully developed by 7,500 cal. yr BP, yet a well-established society does not appear north until 6,000 BP unknown reasons. Here we show sudden increase summer temperature at northern Europe using well-dated, high resolution record of sea surface (SST) Baltic Sea. This rise resulted hypoxic conditions across entire as revealed...
Research Article| September 01, 2011 A 100 yr record of ocean temperature control on the stability Jakobshavn Isbrae, West Greenland Jeremy Lloyd; Lloyd 1Department Geography, Durham University, South Road, DH1 3LE, UK Search for other works by this author on: GSW Google Scholar Matthias Moros; Moros 2Baltic Sea Institute, Seestrasse 15, 18119 Rostock, Germany3Uni Bjerknes Centre Climate Research, Allégaten 55, 5007 Bergen, Norway Kerstin Perner; Perner Germany Richard J. Telford; Telford...
Benthic foraminiferal assemblages from a core southwest of Disko Bugt provide Holocene perspective (last ~7 ka BP) on ice-sheet/ocean interactions between the West Greenland Current (WGC) and ice sheet. Changes in fauna reveal significant variations water mass properties (temperature salinity) WGC through time. From 7.3 to 6.2 BP, relatively warm/strong influences ice-sheet melt causes enhanced meltwater production, resulting low surface-water productivity. The most favourable oceanographic...
Instrumental data evidence an accelerating freshwater release from Arctic sea ice export and the Greenland Ice Sheet over past three decades causing cooling freshening in subpolar North Atlantic region. However, evaluating observed acceleration on a historical oceanic climatic perspective remains challenging given short available instrumental time series. Here we provide marine releases to ocean since 1850 as reflected northern limb of Subpolar Gyre. Our reconstructions suggest that recent...
ABSTRACT Variations in the Holocene circulation of West Greenland Current (WGC) Disko Bugt region have been reconstructed from a suite sediment cores. Palaeoceanographic proxies include magnetic susceptibility (MS) and X‐ray fluorescence titanium counts, which document major shift at c . 6000 cal BP. Before this date, sediments southern were characterized by high terrigeneous basaltic input, suggesting widespread influence meltwater plumes. Our data show that WGC re‐circulated area because...
ABSTRACT Changes in the Holocene interaction of (i) cold/fresh East Greenland Current (EGC) and (ii) warm/saline Irminger (IC) northern Denmark Strait have been reconstructed from benthic planktic foraminifera assemblages, ice‐rafted debris, grain‐size analyses quantitative X‐ray diffraction. During time c . 10 600 to 8000 cal a BP, palaeoceanographic reconstructions reveal waning deglacial influence receding Ice Sheet presence strong EGC caused low surface water productivity. From...
In order to document changes in Holocene glacier extent and activity NE Greenland (~73° N) we study marine sediment records that extend from the fjords ( PS 2631 2640), across shelf 2623 2641), Sea JM 07‐174 GC ). The primary bedrock geology of source areas is Caledonian outcrop, including Devonian red beds, plus early Neoproterozoic gneisses Tertiary volcanics. We examine variations colour CIE *), grain size, bulk mineralogy (from X‐ray diffraction <2 mm fraction). Fjord core 2640 Sofia...
Expansion of fresh and sea‐ice loaded surface waters from the Arctic Ocean into sub‐polar North Atlantic is suggested to modulate northward heat transport within Current ( NAC ). The Reykjanes Ridge south Iceland a suitable area reconstruct changes in mid‐ late Holocene water expansion, which marked by Subarctic Front SAF Here, shifts location result interaction freshwater expansion inflow warmer saline ) Ridge. Using planktic foraminiferal assemblage concentration data marine sediment core...
We address here the specific timing and amplitude of sea‐surface conditions productivity changes off SW Greenland, northern Labrador Sea, in response to high deglacial meltwater rates, Early Holocene maximum insolation Neoglacial cooling. Dinocyst assemblages from sediment cores collected Nuuk were used set up quantitative records sea ice cover, seasonal temperature (SST), salinity (SSS), primary productivity, with a centennial millennial scale resolution. Until ~10 ka BP, ice‐proximal are...
A marked sedimentological change in subsurface sediments from the entire Baltic Proper, Sea, has been previously noted. Our detailed work on a variety of multi‐cores basin‐wide transects indicates that this was caused by large shift environmental conditions during 1950s. Until 1950s, water column rather weakly stratified and winter‐time convection – although weakened post Little Ice Age warming still able to ventilate bottom waters Proper. Therefore, complete sediment sequences only...
Abstract Northern and southern hemispheric influences—particularly changes in Southern Hemisphere westerly winds (SSW) Ocean ventilation—triggered the stepwise atmospheric CO 2 increase that accompanied last deglaciation. One approach for gaining potential insights into past SWW/CO upwelling is to reconstruct positions of northern oceanic fronts associated with Antarctic Circumpolar Current. Using two deep-sea cores located ~600 km apart off coast Australia, we detail from ~23 6 ka using...