Citation:

PANGAEA.957900

Name: Water column data on dissolved inorganic carbon, total alkalinity, nutrients and hydrographic parameters in the Benguela Upwelling System during RV Meteor cruise M153 and RV Sonne cruise SO285
Published: 2023-04-27
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Benguela Upwelling System; elemental stoichiometry; marine carbon cycle; Sea surface partial pressure of CO2

Always quote citation above when using data! You can download the citation in several formats below.

RIS Citation BibTeX Citation Text Citation Facebook TwitterShow Map Google Earth

Abstract:

As part of the BMBF funded project TRAFFIC (Trophic Transfer Efficiency in the Benguela Current), water column samples were collected from the CTD/Rosette sampler during RV Meteor cruise M153 and RV Sonne cruise SO285. Dissolved inorganic carbon (DIC) Total Alkalinity (TA) were measured on board using the VINDTA 3C system (MARIANDA, Germany, www.marianda.com) as a combined TA and DIC titration stand. TA was determined by titration of seawater with hydrochloric acid (0.1 N HCl), while DIC was measured coulometrically. During cruise M153, DIC was measured with a cavity ringdown spectrometer (Picarro G2201-I, 1510CFIDS2047_v1.0) attached to a Liaison A0301 and an AutoMate Prep device. Both the VINDTA 3C and Picarro systems were calibrated using Certified Reference Material provided by A. Dickson (Scripps Institution of Oceanography, La Jolla, CA, USA). Nutrient samples were filtered through disposable syringe filters (0.45 µm) after sampling, filled pre-rinsed 50 ml PE bottles and kept frozen at -20°C until on-shore analysis using a continuous-flow injection system (Skalar SAN plus System) according to methods described by Grasshoff et al. (1999).

Keyword(s):

Benguela Upwelling System; elemental stoichiometry; marine carbon cycle; Sea surface partial pressure of CO2

Supplement to:

Siddiqui, Claire; Rixen, Tim; Lahajnar, Niko; van der Plas, Anja K; Louw, Deon C; Lamont, Tarron; Pillay, Keshnee (2023): Regional and global impact of CO2 uptake in the Benguela Upwelling System through preformed nutrients. Nature Communications, 14(1), 2582, https://doi.org/10.1038/s41467-023-38208-y

References:

Grasshoff, Klaus; Kremling, Klaus; Ehrhardt, M (1999): Methods of Seawater Analysis: Third, Completely Revised and Extended Edition. Wiley, https://doi.org/10.1002/9783527613984

Project(s):

Geochemistry and ecology of the Namibian upwelling system (GENUS)

Trophic Transfer Efficiency in the Benguela Current (TRAFFIC)

Funding:

Bundesministerium für Bildung und Forschung, Bonn (BMBF), grant/award no. 03F0650: Geochemistry and ecology of the Namibian upwelling system

Bundesministerium für Bildung und Forschung, Bonn (BMBF), grant/award no. 03F0797A: Trophic Transfer Efficiency in the Benguela Current

Coverage:

Median Latitude: -23.730868 * Median Longitude: 12.454596 * South-bound Latitude: -32.000130 * West-bound Longitude: -26.767130 * North-bound Latitude: 47.218420 * East-bound Longitude: 18.243080

Date/Time Start: 2019-02-16T13:27:00 * Date/Time End: 2021-10-08T15:06:08

Minimum DEPTH, water: 2.005 m * Maximum DEPTH, water: 1516.196 m

Event(s):

M153_2-5 * Latitude: -26.319130 * Longitude: 14.263380 * Date/Time: 2019-02-16T13:27:00 * Elevation: -308.0 m * Campaign: * Basis: * Method/Device: (CTD-RO)

M153_3-2 * Latitude: -28.972420 * Longitude: 16.635350 * Date/Time: 2019-02-17T17:38:00 * Elevation: -52.0 m * Campaign: * Basis: * Method/Device: (CTD-RO)

M153_4-1 * Latitude: -29.490450 * Longitude: 16.850130 * Date/Time: 2019-02-17T22:16:00 * Elevation: -106.0 m * Campaign: * Basis: * Method/Device: (CTD-RO)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Rixen, Tim
2	Date/Time of event	Date/Time		Rixen, Tim
3	Latitude of event	Latitude		Rixen, Tim
4	Longitude of event	Longitude		Rixen, Tim
5	Station label	Station		Rixen, Tim
6	DEPTH, water	Depth water	m	Rixen, Tim		Geocode
7	Temperature, water	Temp	°C	Rixen, Tim	CTD/Rosette (CTD-RO)
8	Salinity	Sal		Rixen, Tim	CTD/Rosette (CTD-RO)	PSU
9	Oxygen	O2	µmol/l	Rixen, Tim	CTD/Rosette (CTD-RO)
10	Carbon, inorganic, dissolved	DIC	µmol/kg	Rixen, Tim	Coulometric titration, Marianda, VINDTA 3C
11	Alkalinity, total	AT	µmol/kg	Rixen, Tim	Coulometric titration, Marianda, VINDTA 3C
12	Nitrate	[NO3]-	µmol/kg	Rixen, Tim	Nutrient analyzer, Skalar Analytical GmbH, San Plus
13	Nitrite	[NO2]-	µmol/kg	Rixen, Tim	Nutrient analyzer, Skalar Analytical GmbH, San Plus
14	Phosphate	[PO4]3-	µmol/kg	Rixen, Tim	Nutrient analyzer, Skalar Analytical GmbH, San Plus
15	Silicic acid	Si(OH)4	µmol/kg	Rixen, Tim	Nutrient analyzer, Skalar Analytical GmbH, San Plus

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 4 (ProcLevel4)

Size:

24739 data points

Download Data

Download dataset as tab-delimited text — use the following character encoding:

View dataset as HTML (shows only first 2000 rows)