Emeis, Kay-Christian (2025): Suspended matter 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.986133
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Published: 2025-11-25 • DOI registered: 2025-11-25
Abstract:
Samples were taken with a CTD/Rosette sampler to analyse suspended particulate matter (SPM) and its composition at different water depths. The water samples were filtered using a filtration system consisting of five simultaneous filtration devices, two water pumps and a waste container. Suspended material was collected on pre-weighted and pre-combusted GF/F-filters (ø 47 mm) and dried in an oven at 40°C for at least two days. The total amount of material in each sample was estimated using the volume of water filtered and final weight of dried material. Total particulate nitrogen (TPN), total carbon (TC), particulate organic carbon (POC) were quantified by elemental analysis (Thermo Flash EA 1112). Homogenized samples were weighed into silver capsules and inorganic carbon was removed by adding 1 M HCl suprapur prior to analyses. All data are given in weight%. The method for stable N- isotope composition of TPN 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): Suspended matter 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.854073
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: -22.328640 * Median Longitude: 13.499740 * South-bound Latitude: -23.000300 * West-bound Longitude: 12.229000 * North-bound Latitude: -19.016700 * 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: 2002.00 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 | DEPTH, water | Depth water | m | Emeis, Kay-Christian | Geocode | |
| 7 | Device type | Device | Emeis, Kay-Christian | |||
| 8 | Suspended particulate matter | SPM | mg/l | Emeis, Kay-Christian | Filtration | |
| 9 | Nitrogen, total, particulate | TPN | % | Emeis, Kay-Christian | Elemental analyzer (EA), Thermo Scientific, FlashEA 1112 | |
| 10 | Carbon, total | TC | % | Emeis, Kay-Christian | Elemental analyzer (EA), Thermo Scientific, FlashEA 1112 | |
| 11 | Carbon, organic, particulate | POC | % | Emeis, Kay-Christian | Elemental analyzer (EA), Thermo Scientific, FlashEA 1112 | |
| 12 | δ15N, total particulate nitrogen | δ15N TPN | ‰ air | Emeis, Kay-Christian | According to Nagel et al. (2013) | |
| 13 | Nitrogen | N | µmol/l | Emeis, Kay-Christian | Calculated | |
| 14 | Carbon, organic, particulate | POC | µmol/l | Emeis, Kay-Christian | Calculated |
Change history:
2025-09-24T09:27:59 – Version 2: Previous version doi:10.1594/PANGAEA.854073 contains errors.
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
733 data points