Kiesel, Joshua; Link, Heike; Wenzhöfer, Frank (2019): Diffusive oxygen uptake rates measured during POLARSTERN cruise PS94 (TransArcII) to the Barents Sea and central Arctic [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.907883, In: Kiesel, Joshua; Bienhold, Christina; Wenzhöfer, Frank; Link, Heike (2019): Benthic biogeochemical parameters measured during Polarstern expedition PS94 (TransArcII) to the Barents Sea and central Arctic [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.907889
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Abstract:
We assessed diffusive oxygen uptake rates by measuring ex situ porewater oxygen microprofiles. Sediment cores were placed in a water bath and a stirring device was implemented in each core to homogenize the overlying water column and, to create a diffusive boundary layer (DBL) that was similar to in situ conditions. Microprofiles were measured using fiber-optical needle sensors (OXR50 & OXR230) constructed at Pyroscience® (Germany). After two-point calibration (0 % & 100 %) with bottom water taken from the rosette at the same station, the sensors were connected to a Firesting O2 oxygen meter (Pyroscience®) and controlled by using a computer-run micromanipulator. Vertical resolution was programmed to 100 μm, with resting time per data point of 5 seconds. Profile length was programed to be 6.5 cm.
Keyword(s):
Supplement to:
Kiesel, Joshua; Bienhold, Christina; Wenzhöfer, Frank; Link, Heike (2020): Variability in Benthic Ecosystem Functioning in Arctic Shelf and Deep-Sea Sediments: Assessments by Benthic Oxygen Uptake Rates and Environmental Drivers. Frontiers in Marine Science, 7, 426, https://doi.org/10.3389/fmars.2020.00426
Project(s):
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 03G0833E: Verbundprojekt: WTZ RUS: System Laptev-See: TRANSDRIFT
Seventh Framework Programme (FP7), grant/award no. 294757: Assessment of bacterial life and matter cycling in deep-sea surface sediments
Coverage:
Median Latitude: 81.459018 * Median Longitude: 92.802516 * South-bound Latitude: 72.734000 * West-bound Longitude: 22.826000 * North-bound Latitude: 89.916170 * East-bound Longitude: -121.750830
Date/Time Start: 2015-08-18T20:46:00 * Date/Time End: 2015-10-08T10:20:00
Minimum Elevation: -4262.2 m * Maximum Elevation: -265.0 m
Event(s):
PS94/001-2 * Latitude: 74.998500 * Longitude: 30.004000 * Date/Time: 2015-08-18T20:46:00 * Elevation: -372.0 m * Location: Barents Sea * Campaign: PS94 (ARK-XXIX/3) * Basis: Polarstern * Method/Device: MultiCorer (MUC)
PS94/002-2 * Latitude: 76.676330 * Longitude: 30.003830 * Date/Time: 2015-08-19T05:56:00 * Elevation: -265.0 m * Location: Barents Sea * Campaign: PS94 (ARK-XXIX/3) * Basis: Polarstern * Method/Device: MultiCorer (MUC)
PS94/021-2 * Latitude: 80.996500 * Longitude: 28.969500 * Date/Time: 2015-08-21T10:22:00 * Elevation: -389.5 m * Location: Arctic Ocean * Campaign: PS94 (ARK-XXIX/3) * Basis: Polarstern * Method/Device: MultiCorer (MUC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Kiesel, Joshua | |||
| 2 | Date/Time of event | Date/Time | Kiesel, Joshua | |||
| 3 | Latitude of event | Latitude | Kiesel, Joshua | |||
| 4 | Longitude of event | Longitude | Kiesel, Joshua | |||
| 5 | Elevation of event | Elevation | m | Kiesel, Joshua | ||
| 6 | Oxygen uptake, diffusive | DOU | mmol/m2/day | Kiesel, Joshua | ||
| 7 | Comment | Comment | Kiesel, Joshua |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
58 data points