A5073752777- Geology and Paleoclimatology Research
- Climate variability and models
- Tree-ring climate responses
- Hydrology and Drought Analysis
- Pleistocene-Era Hominins and Archaeology
- Methane Hydrates and Related Phenomena
- Geological formations and processes
- Isotope Analysis in Ecology
- Meteorological Phenomena and Simulations
- Complex Systems and Time Series Analysis
- Geological Studies and Exploration
- Cryospheric studies and observations
- Flood Risk Assessment and Management
- Hydrocarbon exploration and reservoir analysis
- Archaeology and ancient environmental studies
- Hydrology and Watershed Management Studies
- Plant Water Relations and Carbon Dynamics
- Karst Systems and Hydrogeology
- Paleontology and Stratigraphy of Fossils
- Ecosystem dynamics and resilience
- Geochemistry and Geologic Mapping
- Atmospheric and Environmental Gas Dynamics
- Coral and Marine Ecosystems Studies
- Maritime and Coastal Archaeology
- Geological and Geophysical Studies
University of Potsdam
2022-2025
Climate Risk Analysis (Germany)
2015-2024
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
2014-2024
Leipzig University
2000-2020
British Antarctic Survey
2008-2009
Natural Environment Research Council
2008
Boston University
2004
Polish Academy of Sciences
2004
Brandenburg University of Technology Cottbus-Senftenberg
2004
Potsdam Institute for Climate Impact Research
2004
A high-resolution oxygen-isotope record from a thorium-uranium-dated stalagmite southern Oman reflects variations in the amount of monsoon precipitation for periods 10.3 to 2.7 and 1.4 0.4 thousand years before present (ky B.P.). Between 8 ky B.P., decadal centennial are phase with temperature fluctuations recorded Greenland ice cores, indicating that early Holocene intensity is largely controlled by glacial boundary conditions. After approximately decreases gradually response changing...
A 50 kyr‐long exceptionally well‐dated and highly resolved stalagmite oxygen ( δ 18 O) carbon 13 C) isotope record from Sofular Cave in northwestern Turkey helps to further improve the dating of Greenland Interstadials (GI) 1, 3–12. Timing most GI is consistent within ±10 300 years with “iconic” Hulu record. Larger divergences (>500 years) between are only observed for 4 7. The differs recent NGRIP chronology by up several centuries, whereas age offsets do not increase systematically...
Unraveling the dynamics of Northern Hemisphere glaciation (NHG) in Pliocene is a key step toward quantitative theory climate transition from greenhouse to an icehouse world. Extracting ice volume signal marine oxygen isotope (δ 18 O) records corrupted with “temperature noise” can be accomplished using statistical time series analysis. We use 45 δ O benthic and planktonic foraminifera globally distributed sites reconstruct NHG initiation. compare amplitudes those temperature proxy estimate...
The “internally” generated intraseasonal variability of the Indian Summer Monsoon is characterized by intermittent periods enhanced (“active”) and deficient (“break”) precipitation, which produce a quasi east‐west precipitation dipole over subcontinent. Here we present multicentennial‐length near annually‐resolved reconstructions monsoon inferred from absolute‐dated instrumentally calibrated speleothem oxygen isotope records regions (central northeast India) that have diametric responses to...
Observations show that summer rainfall over large parts of South Asia has declined the past five to six decades. It remains unclear, however, whether this trend is due natural variability or increased anthropogenic aerosol loading Asia. Here we use stable oxygen isotopes in speleothems from northern India reconstruct variations Indian monsoon last two millennia. We find within long-term context our record, current drying not outside envelope monsoon’s oscillatory variability, albeit at lower...
Anthropogenically induced climate change has been hypothesized to add the risk of extreme river floods because a warmer atmosphere can carry more water. In case central European rivers Elbe and Oder, another possibility that considered is frequent occurrence weather situation type “Zugstrasse Vb,” where low‐pressure system travels from Adriatic region northeastward, carrying moist air bringing orographic rainfall in mountainous catchment areas (Erzgebirge, Sudeten, Beskids). Analysis long,...
Meteorological records of monsoon rainfall in the Indian Ocean are generally less than 100 years long. The relative brevity these makes it difficult to investigate variation on decadal and centennial timescales, determine what factors influence intensity or place possible changes twentieth century into a broader historical context. Development geologic proxy for that annual over much longer time periods covered by instrumental would be significant step forward. We have developed an annually...
The 8.2 ka event was triggered by a meltwater pulse (MWP) into the North Atlantic and resultant reduction of thermohaline circulation (THC). This preceded series at least 14 MWPs; their impact on early Holocene climate has remained almost unknown. A set high‐quality paleoclimate records from across Northern Hemisphere shows evidence for widespread significant climatic anomaly ∼9.2 B.P. patterns very similar to event, cooling occurred high latitudes midlatitudes drying took place in northern...
Soil erosion is a key socio‐economic and environmental problem in Kenya, which has been poorly documented due to the lack of long, continuous records. Here we present Ba/Ca records from Porites corals Malindi coral reef documenting flux suspended sediment Sabaki River with sub‐weekly resolution for last 300 years. While almost constant between 1700 1900, rise observed since first British settlements afterwards steadily increasing demographic pressure on land use. The peak load hence soil...