Waniek, Joanna J; Frazão, Helena C; Jeschek, Jenny; Sadkowiak, Birgit; Kreuzer, Lars; Klostermann, Birgit; Dierken, Madleen (2022): Biological and chemical water properties measured in water bottle samples during the POSEIDON cruise POS459 in Madeira basin in September 2013 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.949180
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Abstract:
During the cruise POS459 on board the German R/V Poseidon, we collected water with a CTD SBE 11plus equipped with 14 Hydrobios free flow bottles of 10 L each in 9 stations (resulting in almost 100 samples) in the Madeira basin region, Northeast Atlantic. We aimed to study the physical and biogeochemical conditions of the water column along the 22°W meridian, north and south of the Azores Front, in September 2013. 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). The physical oceanography associated with this dataset can be found at https://doi.org/10.1594/PANGAEA.949122.
Brief description of the methodology used:
- Nitrate, nitrite, phosphate, and silicate were measured by continuous flow analysis.
- 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 (2022): Physical oceanography during POSEIDON cruise POS459 in Madeira basin in September 2013. PANGAEA, https://doi.org/10.1594/PANGAEA.949122
Funding:
Coverage:
Median Latitude: 33.273215 * Median Longitude: -21.813802 * South-bound Latitude: 31.000282 * West-bound Longitude: -22.015300 * North-bound Latitude: 35.501083 * East-bound Longitude: -20.479067
Date/Time Start: 2013-09-21T12:12:53 * Date/Time End: 2013-09-29T16:30:19
Minimum Elevation: -5285.2 m * Maximum Elevation: -4941.6 m
Event(s):
POS459_0996-1 * Latitude: 34.094833 * Longitude: -20.478833 * Date/Time: 2013-09-21T12:00:00 * Elevation: -5117.3 m * Campaign: POS459 * Basis: Poseidon * Method/Device: CTD/Rosette (CTD-RO) * Comment: Information
POS459_0997-1 * Latitude: 33.334500 * Longitude: -21.501167 * Date/Time: 2013-09-21T21:03:00 * Elevation: -5285.2 m * Campaign: POS459 * Basis: Poseidon * Method/Device: CTD/Rosette (CTD-RO) * Comment: surface
POS459_0999-1 * Latitude: 32.000167 * Longitude: -21.999333 * Date/Time: 2013-09-23T01:38:00 * Elevation: -5053.2 m * Campaign: POS459 * Basis: Poseidon * Method/Device: CTD/Rosette (CTD-RO) * Comment: surface
Comment:
Physical data was previously published and can be found inside the complete CTD data of POS459: Waniek, Joanna J; Frazão, Helena C (2022): Physical oceanography during POSEIDON cruise POS459 in Madeira basin in September 2013. PANGAEA, https://doi.org/10.1594/PANGAEA.949122
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 | DEPTH, water | Depth water | m | Waniek, Joanna J | Geocode | |
| 7 | Temperature, water | Temp | °C | Waniek, Joanna J | CTD/Rosette (CTD-RO) | |
| 8 | Salinity | Sal | Waniek, Joanna J | CTD/Rosette (CTD-RO) | ||
| 9 | File name | File name | Waniek, Joanna J | |||
| 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 | wet chemical treatment; Continuous flow analysis (Grasshoff et al., 1999) | |
| 17 | Nitrate | [NO3]- | µmol/l | Waniek, Joanna J | wet chemical treatment; Continuous flow analysis (Grasshoff et al., 1999) | |
| 18 | Phosphate | [PO4]3- | µmol/l | Waniek, Joanna J | wet chemical treatment; Continuous flow analysis (Grasshoff et al., 1999) | |
| 19 | Silicate | Si(OH)4 | µmol/l | Waniek, Joanna J | wet chemical treatment; Continuous flow analysis (Grasshoff et al., 1999) | |
| 20 | Suspended particulate matter | SPM | g/l | Waniek, Joanna J | gravimetrically (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:
971 data points