Detailseite
Projekt
HOlocene Variability in the Arctic gateway (HOVAG)
Antragsteller
Dr. Matthias Prange; Dr. Robert Spielhagen; Professor Dr. Rüdiger Stein
Fachliche Zuordnung
Paläontologie
Förderung
Förderung von 2007 bis 2018
Projektkennung
Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 42881317
Our study aims at a high-resolution investigation of Holocene climatic developments in the Fram Strait and the Arctic Ocean – an area presently responding rapidly to global warming. We will analyze sediment cores from the West Spitsbergen continental margin and the adjacent Yermak Plateau in centennial to decadal resolution to determine the natural variability of the Atlantic Water inflow to the Arctic Ocean, the position of the sea ice margin, the structure of the water column, and the paleoproductivity. To do this, we will produce several sedimentological, micropaleontological and geochemical proxy data sets from AMS- 14C-dated long sediment cores and cooperate with partners in Norway, Spain, and Canada. Using a global climate model, a regional ocean-sea ice model, and results from the paleoceanographic investigations we will study the influence of variable boundary conditions on the hydrographic structure and ice cover of the Arctic Ocean, the atmospheric transport of heat and moisture, and the freshwater runoff into the Arctic for climatically different time periods. We will also perform sensitivity studies to improve our understanding of the role of past, present and future Arctic oceanographic and climatic variability as well as teleconnections with other ocean basins.
DFG-Verfahren
Schwerpunktprogramme
Beteiligte Personen
Professor Dr. Martin Frank; Professor Dr. Gerrit Lohmann
