Estimation of sea surface temperatures and salinity of ODP Site 177-1089 (Appendix A) ...

• Main Authors: Cortese, Giuseppe, Abelmann, Andrea, Gersonde, Rainer
• Format: Dataset
• Language: English
• Published: PANGAEA 2004
• Subjects: DEPTH, sediment/rock; AGE; Globigerina bulloides, δ18O; Cibicidoides spp., δ18O; Sea surface temperature, summer; δ18O, water; Δδ18O; Composite Core; Calculated; Leg177; Joides Resolution; Ocean Drilling Program ODP; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158; Antarc*; Antarctic; ice core; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.712940; https://doi.pangaea.de/10.1594/PANGAEA.712940

ODP Site 1089 is optimally located in order to monitor the occurrence of maxima in Agulhas heat and salt spillage from the Indian to the Atlantic Ocean. Radiolarian-based paleotemperature transfer functions allowed to reconstruct the climatic history for the last 450 kyr at this location. A warm sea surface temperature anomaly during Marine Isotope Stage (MIS) 10 was recognized and traced to other oceanic records along the surface branch of the global thermohaline (THC) circulation system, and is particularly marked at locations where a strong interaction between oceanic and atmospheric overturning cells and fronts occurs. This anomaly is absent in the Vostok ice core deuterium, and in oceanic records from the Antarctic Zone. However, it is present in the deuterium excess record from the Vostok ice core, interpreted as reflecting the temperature at the moisture source site for the snow precipitated at Vostok Station. As atmospheric models predict a subtropical Indian source for such moisture, this provides ... : Supplement to: Cortese, Giuseppe; Abelmann, Andrea; Gersonde, Rainer (2004): A glacial warm water anomaly in the subantarctic Atlantic Ocean, near the Agulhas Retroflection. Earth and Planetary Science Letters, 222(3-4), 767-778 ...