Wasmund, Norbert (2011): Chlorophyll pigments from the Namibian upwelling system during Discovery 356 [dataset]. Leibniz Institute for Baltic Sea Research, Warnemünde, PANGAEA, https://doi.org/10.1594/PANGAEA.773204
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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: -19.904839 * Median Longitude: 11.589548 * South-bound Latitude: -23.073000 * West-bound Longitude: 9.516000 * North-bound Latitude: -17.303000 * East-bound Longitude: 14.280000
Date/Time Start: 2010-09-11T20:08:00 * Date/Time End: 2010-10-07T21:30:00
Minimum DEPTH, water: 0 m * Maximum DEPTH, water: 75 m
Event(s):
D356-2_1 * Latitude: -20.996000 * Longitude: 13.163000 * Date/Time: 2010-09-11T20:08:00 * Elevation: -111.0 m * Location: Benguela Upwelling * Campaign: D356 * Basis: Discovery (1962) * Method/Device: CTD/Rosette (CTD-RO)
D356-3_1 * Latitude: -20.833000 * Longitude: 13.168000 * Date/Time: 2010-09-11T23:22:00 * Elevation: -111.0 m * Location: Benguela Upwelling * Campaign: D356 * Basis: Discovery (1962) * Method/Device: CTD/Rosette (CTD-RO)
D356-6_3_1 * Latitude: -17.328000 * Longitude: 11.503000 * Date/Time: 2010-09-13T03:46:00 * Location: Benguela Upwelling * Campaign: D356 * Basis: Discovery (1962) * Method/Device: CTD/Rosette (CTD-RO)
Comment:
Chlorophyll-a data from the cruise number D-356 with research vessel "Discovery" from 10.9.-13.10.2010 in front of Namibia. Samples taken by CTD- rosette sampler from different depths.
Filtration through GF/F filters immediately on board, filters frozen, transported to the institute.
Procedure as described by WASMUND et al. (2006, http://www.iopan.gda.pl/oceanologia/481wasmu.pdf). However, a new fluorometer was used which measured according to the principle of WELSCHMEYER (1994, http://www.jstor.org/stable/2838404). Therefore, the chlorophyll a data were corrected for chlorophyll b, but not for pheopigments.
Formula:
Chl.a-tot [mg*m-3] = F0 * KX * VE * VPr**-1
KX = linear calibration factor [µg chl.a/L per fluorescence unit]
F0 = rel. fluorescence
VE = extraction volume [ml]
VPr = filtration volume of the sample [ml]
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Sample code/label | Sample label | Wasmund, Norbert | |||
| 5 | DEPTH, water | Depth water | m | Geocode | ||
| 6 | Chlorophyll a | Chl a | µg/l | Wasmund, Norbert | Fluorescence determination | total |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
304 data points