Waniek, Joanna J; Frazão, Helena C; Jeschek, Jenny; Kreuzer, Lars; Sadkowiak, Birgit; Dierken, Madleen; Klostermann, Birgit (2022): Biological and chemical water properties measured in water bottle samples during POSEIDON cruise POS470 in Madeira basin in May/June 2014 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.949190
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Abstract:
During the cruise POS470 on board the German R/V Poseidon, we collected water with a CTD SBE911plus equipped with 14 Hydrobios free flow bottles of 5 L each in 31 stations (resulting in more than 300 samples) and during transect time in the Madeira basin region, Northeast Atlantic. We aimed to study the physical and biogeochemical conditions in the upper 2000 m of the water column around the catchment area of Kiel 276 in May/June 2014. We measured concentrations of chlorophyll a, phaeopigments, suspended particulate material (SPM), and nutrients such as nitrate, nitrite, phosphate and silicate. Also, we determined concentrations of particulate organic carbon (POC) and particulate organic nitrogen (PON) as well as dissolved organic carbon (DOC) and dissolved nitrogen (DN). The physical oceanography during the survey is available at PANGAEA (https://doi.org/10.1594/PANGAEA.949132).
Brief description of the methodology used:
- Nitrate, nitrite, phosphate and silicate were measured by continuous flow analysis.
- Oxygen was measured on one sample at each station by potentiometric Winkler titration.
- DOC and DN were measured by catalytic oxidation after filtered with GF/F-filters.
- POC and PON were measured by means of an elemental analyser after filtered with pre-combusted GF/F-filters.
- Suspended particulate material (SPM) was determined gravimetrically after pre-combusted and weighted GF/F-filters filtration.
- Chlorophyll a and phaeopigments were measured using a fluorometer after ethanol extraction of the GF/F-filters.
Related to:
Waniek, Joanna J; Frazão, Helena C; Mars, Robert (2022): Physical oceanography during POSEIDON cruise POS470 in Madeira basin in May/June 2014. PANGAEA, https://doi.org/10.1594/PANGAEA.949132
Funding:
Bundesministerium für Wirtschaft und Energie (BMWi), grant/award no. 03SX348F: SMIS: Subsea Monitoring via Itelligent Swarms Vorhaben Seeerprobungen u. wissenschaftliche Anwendungen
Coverage:
Median Latitude: 33.567757 * Median Longitude: -20.211566 * South-bound Latitude: 30.000300 * West-bound Longitude: -23.000000 * North-bound Latitude: 36.999700 * East-bound Longitude: 22.000000
Date/Time Start: 2014-05-26T07:25:00 * Date/Time End: 2014-06-14T08:21:00
Minimum Elevation: -5357.3 m * Maximum Elevation: -4031.8 m
Event(s):
POS470_610-1 * Latitude: 37.000000 * Longitude: -22.000000 * Date/Time: 2014-05-31T07:20:00 * Elevation: -4080.0 m * Campaign: POS470 (SMIS DEKADE) * Basis: Poseidon * Method/Device: CTD/Rosette (CTD-RO) * Comment: 0
POS470_611-3 * Latitude: 36.499833 * Longitude: -21.999833 * Date/Time: 2014-05-31T17:24:00 * Elevation: -4031.8 m * Campaign: POS470 (SMIS DEKADE) * Basis: Poseidon * Method/Device: CTD/Rosette (CTD-RO) * Comment: 0
POS470_612-1 * Latitude: 36.000167 * Longitude: -22.000000 * Date/Time: 2014-06-01T00:34:00 * Elevation: -4210.5 m * Campaign: POS470 (SMIS DEKADE) * Basis: Poseidon * Method/Device: CTD/Rosette (CTD-RO) * Comment: 0
Comment:
Physical data was previously published and can be found inside the complete CTD data of POS470:Waniek, Joanna J; Frazão, Helena C; Mars, Robert (2022): Physical oceanography during POSEIDON cruise POS470 in Madeira basin in May/June 2014. PANGAEA, https://doi.org/10.1594/PANGAEA.949132
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Waniek, Joanna J | |||
| 2 | DATE/TIME | Date/Time | Waniek, Joanna J | Geocode | ||
| 3 | LATITUDE | Latitude | Waniek, Joanna J | Geocode | ||
| 4 | LONGITUDE | Longitude | Waniek, Joanna J | Geocode | ||
| 5 | ELEVATION | Elevation | m a.s.l. | Waniek, Joanna J | Geocode | |
| 6 | File name | File name | Waniek, Joanna J | |||
| 7 | DEPTH, water | Depth water | m | Waniek, Joanna J | Geocode | |
| 8 | Temperature, water | Temp | °C | Waniek, Joanna J | CTD/Rosette (CTD-RO) | |
| 9 | Salinity | Sal | Waniek, Joanna J | CTD/Rosette (CTD-RO) | ||
| 10 | Water volume, filtered | Vol filtered | ml | Waniek, Joanna J | for Chlorophyll a | |
| 11 | Phaeopigments | Phae | mg/m3 | Waniek, Joanna J | fluorometer (ethanol extraction; GF/F-filtered) (Grasshoff et al., 1999) | |
| 12 | Chlorophyll a | Chl a | mg/m3 | Waniek, Joanna J | fluorometer (ethanol extraction; GF/F-filtered) (Grasshoff et al., 1999) | |
| 13 | Water volume, filtered | Vol filtered | ml | Waniek, Joanna J | for POC | |
| 14 | Nitrogen, organic, particulate | PON | µmol/l | Waniek, Joanna J | elemental analyzer (GF/F- filtered) (Grasshoff et al., 1999) | |
| 15 | Carbon, organic, particulate | POC | µmol/l | Waniek, Joanna J | elemental analyzer (GF/F- filtered) (Grasshoff et al., 1999) | |
| 16 | Nitrite | [NO2]- | µmol/l | Waniek, Joanna J | gravimetrically (GF/F-filtered) (Grasshoff et al., 1999) | |
| 17 | Nitrate | [NO3]- | µmol/l | Waniek, Joanna J | gravimetrically (GF/F-filtered) (Grasshoff et al., 1999) | |
| 18 | Phosphate | [PO4]3- | µmol/l | Waniek, Joanna J | gravimetrically (GF/F-filtered) (Grasshoff et al., 1999) | |
| 19 | Silicate | Si(OH)4 | µmol/l | Waniek, Joanna J | gravimetrically (GF/F-filtered) (Grasshoff et al., 1999) | |
| 20 | Water volume, filtered | Vol filtered | ml | Waniek, Joanna J | for SPM | |
| 21 | Suspended particulate matter | SPM | g/l | Waniek, Joanna J | gravimetrically (GF/F-filtered) (Grasshoff et al., 1999) | |
| 22 | Carbon, organic, dissolved | DOC | µmol/l | Waniek, Joanna J | catalytic oxidation (GF/F-filtered) (Grasshoff et al., 1999) | |
| 23 | Nitrogen, organic, dissolved | DON | µmol/l | Waniek, Joanna J | catalytic oxidation (GF/F-filtered) (Grasshoff et al., 1999) |
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:
4511 data points
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