Barium measured on water bottle samples during POLARSTERN cruise ARK-XXII/2 (SPACE) ...
Dissolved barium has been shown to have the potential to distinguish Eurasian from North American (NA) river runoff. As part of the ARK-XXII/2 Polarstern expedition in summer 2007, Ba was analyzed in the Barents, Kara, Laptev seas, and the Eurasian Basins as well as the Makarov Basin up to the Alpha...
| Main Authors: | , , , |
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| Format: | Dataset |
| Language: | English |
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PANGAEA
2012
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.1594/pangaea.758745 https://doi.pangaea.de/10.1594/PANGAEA.758745 |
| Summary: | Dissolved barium has been shown to have the potential to distinguish Eurasian from North American (NA) river runoff. As part of the ARK-XXII/2 Polarstern expedition in summer 2007, Ba was analyzed in the Barents, Kara, Laptev seas, and the Eurasian Basins as well as the Makarov Basin up to the Alpha and Mendeleyev Ridges. By combining salinity, d18O and initial phosphate corrected for mineralization with oxygen (PO4*) or N/P ratios we identified the water mass fractions of meteoric water, sea ice meltwater, and marine waters of Atlantic as well as Pacific origin in the upper water column. In all basins inside the lower halocline layer and the Arctic intermediate waters we find Ba concentrations close to those of the Fram Strait branch of the lower halocline (41-45 nM), reflecting the composition of the incoming Atlantic water. A layer of upper halocline water (UHW) with higher Ba concentrations (45-55 nM) is identified in the Makarov Basin. Atop of the UHW, the Surface Mixed Layer (SML), including the summer ... : Supplement to: Roeske, Tobias; Bauch, Dorothea; Rutgers van der Loeff, Michiel M; Rabe, Benjamin (2012): Utility of dissolved barium in distinguishing North American from Eurasian runoff in the Arctic Ocean. Marine Chemistry, 132-133, 1-14 ... |
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