Browsing by Subject "Southern Ocean"
Now showing items 1-7 of 7
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Coherent Seasonal Acceleration of the Weddell Sea Boundary Current System Driven by Upstream Winds
; ; ; ; ; ; ; (Journal of Geophysical Research: Oceans, 2020)
The Weddell Sea is of global importance in the formation of dense bottom waters associated with sea ice formation and ocean-ice sheet interaction occurring on the shelf areas. In this context, the Weddell Sea boundary ... -
Dating Deep-Sea Sediments With 230Th Excess Using a Constant Rate of Supply Model
; ; ; (Paleoceanography and Paleoclimatology, 2019)
We present a dating method for deep-sea sediments that uses the natural radionuclide 230Th (half-life 75,380 years) in analogy to 210Pb with the constant rate of supply (CRS) model. Using an example from the western Indian ... -
Efficient Extraction of Past Seawater Pb and Nd Isotope Signatures From Southern Ocean Sediments
; ; ; ; Eisenhauer, A. (Geochemistry, Geophysics, Geosystems, 2021-03-16)
Radiogenic lead (Pb) and neodymium (Nd) isotope compositions extracted from authigenic phases in marine sediments are sensitive tracers to reconstruct past ocean circulation and water mass mixing. Chemical reductive leaching ... -
Predictability of Antarctic Sea Ice Edge on Subseasonal Time Scales
; ; (Geophysical Research Letters, 2019)
Coupled subseasonal forecast systems with dynamical sea ice have the potential of providing important predictive information in polar regions. Here, we evaluate the ability of operational ensemble prediction systems to ... -
Radiocarbon Evidence for the Contribution of the Southern Indian Ocean to the Evolution of Atmospheric CO2 Over the Last 32,000 Years
; ; ; ; ; (Paleoceanography and Paleoclimatology, 2020)
It is widely assumed that the ventilation of the Southern Ocean played a crucial role in driving glacial-interglacial atmospheric CO2 levels. So far, however, ventilation records from the Indian sector of the Southern Ocean ... -
The Evolving Paleobathymetry of the Circum-Antarctic Southern Ocean Since 34 Ma: A Key to Understanding Past Cryosphere-Ocean Developments
; ; ; ; ; ; ; (Geochemistry, Geophysics, Geosystems, 2020)
The Southern Ocean is a key player in the climate, ocean, and atmospheric system. As the only direct connection between all three major oceans since the opening of the Southern Ocean gateways, the development of the Southern ... -
The Nitrogen Isotopic Composition of Tissue and Shell-Bound Organic Matter of Planktic Foraminifera in Southern Ocean Surface Waters
; ; ;; ; ; ; ; ; (Geochemistry, Geophysics, Geosystems, 2020)
We present the first nitrogen isotope (δ15N) measurements of planktic foraminifera, paleoceanographically important zooplankton, from the nutrient-rich waters of the modern Southern Ocean. Foraminifera were collected from ...
