Hydrochemistry measured on water bottle samples during POLARSTERN cruise ANT-VIII/2 ...

On a section between 72°S and 42°S and a transect between 60°E and 10°E through the Weddell Sea and the southernmost eastern Atlantic Ocean, the water column was sampled on 72 stations, and the stable carbon isotopic composition of total dissolved inorganic carbon (delta13C(SumCO2)) as well as the s...

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Bibliographic Details
Main Authors: Mackensen, Andreas, Hubberten, Hans-Wolfgang, Scheele, Norbert, Schlitzer, Reiner
Format: Dataset
Language:English
Published: PANGAEA 1996
Subjects:
Event label
Date/Time of event
Latitude of event
Longitude of event
Elevation of event
DEPTH, water
Pressure, water
Temperature, water, potential
Salinity
Oxygen
δ13C, dissolved inorganic carbon
δ18O, water
Δδ13C
Phosphate
Multiple investigations
MultiCorer
CTD/Rosette
Water sample
CTD, Neil Brown, Mark III B
Oxygen, Winkler Culberson, 1991, WOCE Report 68/91
Mass spectrometer Finnigan MAT 252
Mass spectrometer Finnigan Delta-S
Calculated after Broecker & Maier-Reimer 1992
Continuous Flow Analysis
ANT-VIII/2
ANT-VIII/3
Polarstern
Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo
South Atlantic in Late Quaternary Reconstruction of Budget and Currents SFB261
Southern Ocean
Weddell Sea
Online Access:https://dx.doi.org/10.1594/pangaea.761833
https://doi.pangaea.de/10.1594/PANGAEA.761833
Description
Summary:On a section between 72°S and 42°S and a transect between 60°E and 10°E through the Weddell Sea and the southernmost eastern Atlantic Ocean, the water column was sampled on 72 stations, and the stable carbon isotopic composition of total dissolved inorganic carbon (delta13C(SumCO2)) as well as the stable oxygen isotopic composition of seawater (delta18O) was determined. These data were compared with potential temperature, salinity, dissolved oxygen and phosphate data from the same stations. The observed delta13C(SumCO2)/PO4[3-] relationship in the deep Weddell Sea strongly differs from the global Redfield-driven deep water relationship. We attribute this to enhanced thermodynamic fractionation at sites of bottom water formation that decouples the nutrient signal from the delta13C(SumCO2) signal not only in surface and intermediate water masses but also in deep and bottom water. Different, water-mass specific thermodynamic imprints due to different modes of bottom water formation are assumed to cause the ... : Supplement to: Mackensen, Andreas; Hubberten, Hans-Wolfgang; Scheele, Norbert; Schlitzer, Reiner (1996): Decoupling of d13CSUMCO2 and phosphate in recent Weddell Sea deep and bottom water: implications for glacial Southern Ocean paleoceanography. Paleoceanography, 11(2), 203-215 ...

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