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Emeis, Kay-Christian; Dähnke, Kirstin; Eggert, Anja; Flohr, Anita; Lahajnar, Niko; Nagel, Niko; Nausch, Birgit; Neumann, Andreas; Rixen, Tim; Schmidt, Martin; Wasmund, Norbert (2017): pCO2 underway data from the Benguela Upwelling System in southeastern South Atlantic Ocean [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.880406, Supplement to: Emeis, Kay-Christian; Eggert, Anja; Flohr, Anita; Lahajnar, Niko; Nausch, Günther; Neumann, Andreas; Rixen, Tim; Schmidt, Martin; van der Plas, Anja K; Wasmund, Norbert (2018): Biogeochemical processes and turnover rates in the Northern Benguela Upwelling System. Journal of Marine Systems, 188, 63-80, https://doi.org/10.1016/j.jmarsys.2017.10.001

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Abstract:
Within the BMBF funded project GENUS (Geochemistry and Ecology of the Namibian Upwelling System) the mole fraction of CO2 (xCO2) was measured in surface waters by using an underway pCO2 system (SUNDANS) duirng seven cruises. SUNDANS was developed by "marine analytics and data" (MARIANDA, Germany, www.marianda.com) according to the recommendations of the 2002 underway pCO2 system workshop in Miami. It was equipped with a shower type equilibrator, an open pre-equilibrator and a non-dispersive dual cell infrared gas analyzer (LI-7000). The LI-7000 was calibrated by using nitrogen gas (zero CO2) and a two additional standard gas for CO2. The standard gases were obtained from the company Deuste Steininger GmbH, Germany and revealed CO2 concentrations of 350 to 480 ppm (Std1) and around 800 ppm (Std2). The CO2 standard gases were calibrated against the standard gases provided by NOAA at the Institute for Baltic Sea Research in Warnemünde, Germany (Ref. No. CA07600 and CC311968) and the Centre for Tropical Marine Research in Bremen, Germany (Ref. No. CB08923 and CA06265). The xCO2 data were recorded each 6 seconds and subsequently averaged minute by minute. Minute by minute data on atmospheric pressure, wind speed, seawater temperature and salinity were measured by underway systems mounted on board the research vessels. xCO2 was converted into pCO2 by using the CO2 sys program. The difference between the equilibrator and the sea water temperature was taken into account as suggested by Dickson et al. (2007, SOP5, page 8). During the RV Metoer cruise M67/2 between May 15 and June 05 2008 the pCO was measured by using PSI CO2-ProTM underwater carbon dioxide sensor designs by Pro-Oceanus Systems In., USA.
Project(s):
Geochemistry and ecology of the Namibian upwelling system (GENUS)
Funding:
Bundesministerium für Bildung und Forschung, Bonn (BMBF), grant/award no. 03F0650: Geochemistry and ecology of the Namibian upwelling system
Coverage:
Median Latitude: -19.421168 * Median Longitude: 12.079911 * South-bound Latitude: -33.530000 * West-bound Longitude: -14.821840 * North-bound Latitude: 6.104892 * East-bound Longitude: 46.906799
Date/Time Start: 2008-03-13T00:00:00 * Date/Time End: 2014-02-10T14:03:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
14 datasets

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Datasets listed in this publication series

  1. Rixen, T; Emeis, K-C (2017): pCO2 underway data from the Benguela Upwelling System in southeastern South Atlantic Ocean along AFRICANA cruise track AFR258. https://doi.org/10.1594/PANGAEA.880382
  2. Rixen, T; Flohr, A (2012): Biogeochemical characteristics of the Northern Benguela upwelling system with emphasis on the carbonate system and nutrient dynamics during Discovery 356. https://doi.org/10.1594/PANGAEA.779634
  3. Lahajnar, N (2012): FerryBox measurements at the Namibian upwelling system during Discovery 356. https://doi.org/10.1594/PANGAEA.779134
  4. Rixen, T; Emeis, K-C (2017): pCO2 underway data from the Benguela Upwelling System in southeastern South Atlantic Ocean along DISCOVERY cruise track D356. https://doi.org/10.1594/PANGAEA.880383
  5. Rixen, T; Emeis, K-C (2017): pCO2 underway data from the Benguela Upwelling System in southeastern South Atlantic Ocean along METEOR cruise track M76/2. https://doi.org/10.1594/PANGAEA.880395
  6. Rixen, T; Flohr, A (2015): Biogeochemical characteristics of the Northern Benguela upwelling system with emphasis on the carbonate system and nutrient dynamics during METEOR cruise M103. https://doi.org/10.1594/PANGAEA.853624
  7. Lahajnar, N (2015): Nutrients measured with a FerryBox in the Benguela Upwelling System within the Namibian coastal territory during METEOR cruise M103/1 in December 2013 to January 2014. https://doi.org/10.1594/PANGAEA.854031
  8. Emeis, K-C (2017): pCO2 underway data from the Benguela Upwelling System in southeastern South Atlantic Ocean along Maria S. Merian cruise track MSM07/2b. https://doi.org/10.1594/PANGAEA.880384
  9. Rixen, T; Emeis, K-C (2017): pCO2 underway data from the Benguela Upwelling System in southeastern South Atlantic Ocean along Maria S. Merian cruise track MSM17. https://doi.org/10.1594/PANGAEA.880385
  10. Rixen, T; Flohr, A (2012): Biogeochemical characteristics of the Northern Benguela upwelling system with emphasis on the carbonate system and nutrient dynamics during Discovery MSM17/3. https://doi.org/10.1594/PANGAEA.779638
  11. Lahajnar, N (2012): FerryBox measurements at the Namibian upwelling system during Maria S. Merain cruise MSM17/3. https://doi.org/10.1594/PANGAEA.779135
  12. Neumann, A; Lahajnar, N (2015): Nutrients in porewater from the Namibian Shelf during MSM17/3 in January and February 2011. https://doi.org/10.1594/PANGAEA.854435
  13. Rixen, T; Emeis, K-C (2017): pCO2 underway data from the Benguela Upwelling System in southeastern South Atlantic Ocean along Maria S. Merian cruise track MSM18/4. https://doi.org/10.1594/PANGAEA.880392
  14. Rixen, T; Emeis, K-C (2017): pCO2 underway data from the Benguela Upwelling System in southeastern South Atlantic Ocean along Maria S. Merian cruise track MSM19/1. https://doi.org/10.1594/PANGAEA.880393