Emeis, Kay-Christian (2025): Nutrients measurements from METEOR cruise M76/2 in the Benguela Upwelling System off Namibia in May 2008 [dataset]. Institute for Geology, Biogeochemistry, University of Hamburg, PANGAEA, https://doi.org/10.1594/PANGAEA.986428
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Published: 2025-11-25 • DOI registered: 2025-11-25
Abstract:
Water samples were taken with a conductivity-temperature-depth (CTD)/rosette sampler and were filtered over precombusted GF/F Filters onboard. Filtrates were stored frozen in acid-washed polypropylene bottles for nutrient and nitrate isotope analysis. Nutrient concentrations of samples were measured with a Bran & Luebbe SCALAR autoanalyzer in the home laboratory in Hamburg applying standard methods. The method for stable isotope composition of nitrate is described in Nagel et al., 2013.
Related to:
Zabel, Matthias; Boetius, Antje; Emeis, Kay-Christian; Ferdelman, Timothy G; Spieß, Volkhard (2012): PROSA Process Studies in the Eastern South Atlantic – Cruise No. M76 – April 12 – August 24, 2008 – Cape Town (South Africa) – Walvis Bay (Namibia). METEOR-Berichte, DFG-Senatskommission für Ozeanographie, M76, 180 pp, https://doi.org/10.2312/cr_m76
Original version:
Emeis, Kay-Christian (2015): Nutrients measurements from METEOR cruise M76/2 in the Benguela Upwelling System off Namibia in May 2008 [dataset]. Institute for Geology, Biogeochemistry, University of Hamburg, PANGAEA, https://doi.org/10.1594/PANGAEA.854075
References:
Nagel, Birgit; Emeis, Kay-Christian; Flohr, Anita; Rixen, Tim; Schlarbaum, Tim; Mohrholz, Volker; van der Plas, Anja K (2013): N-cycling and balancing of the N-deficit generated in the oxygen minimum zone over the Namibian shelf-An isotope-based approach. Journal of Geophysical Research: Biogeosciences, 118(1), 361-371, https://doi.org/10.1002/jgrg.20040
Project(s):
Funding:
Bundesministerium für Bildung und Forschung, Bonn (BMBF), grant/award no. 03F0650: Geochemistry and ecology of the Namibian upwelling system
Coverage:
Median Latitude: -21.386200 * Median Longitude: 12.996735 * South-bound Latitude: -23.000300 * West-bound Longitude: 10.649800 * North-bound Latitude: -17.415500 * East-bound Longitude: 14.367700
Date/Time Start: 2008-05-17T13:39:00 * Date/Time End: 2008-06-01T11:04:00
Minimum DEPTH, water: 1.00 m * Maximum DEPTH, water: 3000.00 m
Event(s):
M76/2_192_CTD-RO * Latitude: -23.000300 * Longitude: 14.367700 * Date/Time: 2008-05-17T13:39:00 * Elevation: -36.9 m * Location: Namibia upwelling, Southeast Atlantic * Campaign: M76/2 * Basis: Meteor (1986) * Method/Device: CTD-RO, Seabird [5-L]
M76/2_194_CTD-RO * Latitude: -22.999200 * Longitude: 14.215800 * Date/Time: 2008-05-17T15:39:00 * Elevation: -100.9 m * Location: Namibia upwelling, Southeast Atlantic * Campaign: M76/2 * Basis: Meteor (1986) * Method/Device: CTD-RO, Seabird [5-L]
M76/2_195_MULT * Latitude: -23.000000 * Longitude: 14.048800 * Date/Time: 2008-05-17T17:18:00 * Elevation: -127.5 m * Location: Namibia upwelling, Southeast Atlantic * Campaign: M76/2 * Basis: Meteor (1986) * Method/Device: Multiple investigations (MULT) * Comment: CTD: 1, MUC: 1, MSS: 1
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Emeis, Kay-Christian | |||
| 2 | Latitude of event | Latitude | Emeis, Kay-Christian | |||
| 3 | Longitude of event | Longitude | Emeis, Kay-Christian | |||
| 4 | Date/Time of event | Date/Time | Emeis, Kay-Christian | |||
| 5 | Elevation of event | Elevation | m | Emeis, Kay-Christian | ||
| 6 | Device type | Device | Emeis, Kay-Christian | CTD/Rosette (CTD-RO) | ||
| 7 | DEPTH, water | Depth water | m | Emeis, Kay-Christian | Geocode | |
| 8 | Phosphate | [PO4]3- | µmol/l | Emeis, Kay-Christian | Autoanalyzer, Bran+Luebbe, SCALAR | |
| 9 | Silicon dioxide | SiO2 | µmol/l | Emeis, Kay-Christian | Autoanalyzer, Bran+Luebbe, SCALAR | |
| 10 | Ammonium | [NH4]+ | µmol/l | Emeis, Kay-Christian | Autoanalyzer, Bran+Luebbe, SCALAR | |
| 11 | Nitrite | [NO2]- | µmol/l | Emeis, Kay-Christian | Autoanalyzer, Bran+Luebbe, SCALAR | |
| 12 | Nitrate | [NO3]- | µmol/l | Emeis, Kay-Christian | Autoanalyzer, Bran+Luebbe, SCALAR | |
| 13 | δ15N, nitrate | δ15N NO3 | ‰ air | Emeis, Kay-Christian | According to Nagel et al. (2013) | |
| 14 | δ18O, nitrate | δ18O NO3 | ‰ | Emeis, Kay-Christian | According to Nagel et al. (2013) |
Change history:
2025-09-29T07:05:28 – Version 2: Previous version doi:10.1594/PANGAEA.854075 contains errors.
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1189 data points