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Mohrholz, Volker; Beier, Sebastian; Faber, Jens; Heene, Toralf; Kolbe, Martin (2024): Physical oceanography on the Namibian Shelf obtained by CTD measurements during RV Meteor cruise M157 (2019) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.965888

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Published: 2024-02-29 • DOI registered: 2024-03-29

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Abstract:
The focus of hydrographic investigations during the cruise was on the impact of short term upwelling variability on oxygen and nutrient supply to the shelf, and on the response of primary production to short term upwelling peaks. Standard hydrographic parameters were gathered with a Seabird CTD along three transects at 17.3°S, 23°S and 25°S. We used a CTD SBE 911plus with a rosette water sampler to measure temperature, pressure, practical salinity, oxygen concentration, turbidity, fluorescence and irradiance. For details to all processing steps see Data Processing Report.
Keyword(s):
CTD data; hydrographic data; Namibian Shelf; South East Atlantic Ocean; Upwelling
Related to:
Zabel, Matthias; Mohrholz, Volker; Schulz-Vogt, Heide N; Sommer, Stefan; Zettler, Michael Lothar (2019): The Benguela System under climate change Effects of variability in physical forcing on carbon and oxygen budgets, Cruise No. M157, 04.08.2019 - 16.09.2019, Mindelo (Cape Verde) - Walvis Bay (Namibia). METEOR-Berichte, Gutachterpanel Forschungsschiffe, M157, 58 pp, https://doi.org/10.2312/cr_m157
Data processing report:
Faber, Jens; Heene, Toralf; Mohrholz, Volker (2024): Processing report for CTD data obtained on RV Meteor, cruise M157. Leibniz Institute for Baltic Sea Research, Warnemünde, dataProcReport_M157.pdf
Project(s):
The Benguela Upwelling System under climate change – Effects of VARiability in physical forcing on carbon and oxygen budgets (EVAR)
Coverage:
Median Latitude: -21.127921 * Median Longitude: 12.547755 * South-bound Latitude: -25.083600 * West-bound Longitude: 11.066800 * North-bound Latitude: -17.262000 * East-bound Longitude: 14.799800
Date/Time Start: 2019-08-21T06:04:19 * Date/Time End: 2019-09-13T10:49:14
Minimum DEPTH, water: 1.3 m * Maximum DEPTH, water: 1783.5 m
Event(s):
M157_2-8 * Latitude: -23.000167 * Longitude: 14.366750 * Date/Time: 2019-08-24T04:52:00 * Elevation: -46.0 m * Campaign: M157 (BUSUC 1) * Basis: Meteor (1986) * Method/Device: CTD/Rosette (CTD-RO)
M157_2-9 * Latitude: -22.999800 * Longitude: 14.366900 * Date/Time: 2019-09-13T10:49:00 * Elevation: -46.0 m * Campaign: M157 (BUSUC 1) * Basis: Meteor (1986) * Method/Device: CTD/Rosette (CTD-RO)
M157_8-2 * Latitude: -22.999383 * Longitude: 13.149450 * Date/Time: 2019-08-28T22:12:00 * Elevation: -321.0 m * Campaign: M157 (BUSUC 1) * Basis: Meteor (1986) * Method/Device: CTD/Rosette (CTD-RO)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventMohrholz, Volker
2DATE/TIMEDate/TimeMohrholz, VolkerGeocode
3LATITUDELatitudeMohrholz, VolkerGeocode
4LONGITUDELongitudeMohrholz, VolkerGeocode
5DEPTH, waterDepth watermMohrholz, VolkerGeocode
6Pressure, waterPressdbarMohrholz, VolkerCTD, Sea-Bird SBE 911plus
7Temperature, waterTemp°CMohrholz, VolkerCTD, Sea-Bird, SBE 911plus, measured with Temperature sensor, Sea-Bird, SBE3Sensor 1
8ConductivityCondmS/cmMohrholz, VolkerCTD, Sea-Bird, SBE 911plus; measured with Conductivity sensor, Sea-Bird, SBE 4Sensor 1
9OxygenO2µmol/kgMohrholz, VolkerCTD, Sea-Bird, SBE 911plus; measured with Dissolved oxygen sensor, Sea-Bird, SBE 43Sensor 1
10FluorescenceFluorescencemg/m3Mohrholz, VolkerCTD, Sea-Bird, SBE 911plus; measured with Fluorometer, WET Labs, ECO-AFL/FL
11Turbidity (Nephelometric turbidity unit)TurbidityNTUMohrholz, VolkerCTD, Sea-Bird, SBE 911plus; measured with Turbidity sensor, WET Labs, ECO NTU
12Radiation, photosynthetically activePARMohrholz, VolkerCTD, Sea-Bird, SBE 911plus; measured with PAR sensor, Sea-Bird
13Radiation, photosynthetically active, surfaceSPARMohrholz, VolkerCTD, Sea-Bird, SBE 911plus; measured with SPAR sensor, Sea-Bird
14SalinitySalMohrholz, VolkerCTD, Sea-Bird, SBE 911plus; calculated using SBE Data Processing Version 7.26.7Sensor 1; PSU
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
644535 data points

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