Swiss Polar Institute: Antarctic Circumnavigation Expedition (ACE)
Published June 26, 2019 | Version 1.0
Dataset Open

Seawater chromium concentrations and isotope compositions in the Southern Ocean during the austral summer of 2016/2017, on board the Antarctic Circumnavigation Expedition (ACE).

Creators

  • 1. ETH Zurich, Switzerland
  • 2. University of Bern, Switzerland
  • 3. University of Geneva, Switzerland
  • 4. Australian National University, Canberra, Australia

Contributors

Contact person:

Project leader:

  • 1. ETH Zurich, Switzerland
  • 2. University of Bern, Switzerland
  • 3. University of Geneva, Switzerland
  • 4. Australian National University, Canberra, Australia

Description

Dataset abstract

Dissolved seawater chromium (Cr) concentrations and stable isotope compositions measured on samples collected with a trace metal clean rosette system in the Southern Ocean. Stations TM 7 to TM 12 reflect a north-south transect from Hobart, Tasmania to Mertz Glacier in Antarctica. Stations TM 14 and TM 15 neighbour the Balleny Islands. Stations TM 18 and TM 20 are located in the Drake Passage. Water samples were collected down to a depth of 1000 metres. The water was filtered in a class 100 clean container aboard the ship through pre-rinsed Supor Acropak capsule filters (0.2 um). Subsequently the samples were acidified and stored at a pH < 2 for several months prior to analysis. Reported values therefore represent bulk seawater chromium (Cr III and Cr VI). The data was obtained using the double-spike technique.

Dataset contents

  • ace_chromium_isotope_concentration.csv, data file, comma-separated values
  • data_file_header.txt, metadata, text format
  • README.txt, metadata, text format

Dataset license

This chromium concentration and isotope composition dataset is made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0) whose full text can be found at https://creativecommons.org/licenses/by/4.0/

Notes

This work was supported by the Swiss National Science Foundation (SNSF – grant PP00P2_172915). The MC-ICP-MS at the Institute of Geological Sciences, University of Bern has been acquired within the framework of the NCCR project PlanetS. The Antarctic Circumnavigation Expedition was made possible by funding from the Swiss Polar Institute and Ferring Pharmaceuticals.

Files

ace_chromium_isotope_concentration.csv

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Additional details

Related works

Is cited by
10.1016/j.gca.2019.07.033 (DOI)
Is supplement to
10.1016/j.gca.2019.07.033 (DOI)
Is supplemented by
10.5281/zenodo.1443511 (DOI)

Funding

SeaO2 - Past changes in Southern Ocean overturning circulation - implications for the partitioning of carbon and oxygen between the ocean and the atmosphere PP00P2_172915
Swiss National Science Foundation

References

  • Rudge J.F., Reynolds B.C. and Bourdon B. (2009) The double spike toolbox. Chemical Geology 265, 420-431.
  • R Core Team (2014). R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. URL http://www.R-project.org/
  • Rickli, J., Janssen, D. J., Hassler, C., Ellwood, M. J. and Jaccard, S. L. (2019) 'ScienceDirect Chromium biogeochemistry and stable isotope distribution in the Southern Ocean', Geochimica et Cosmochimica Acta. The Authors, 262, pp. 188–206. doi: 10.1016/j.gca.2019.07.033.