Owsianowski, Nils; Richter, Claudio (2022): Physical oceanography during ROV dive PS118_9-10 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.949397
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Abstract:
During a seabed observation dive (depth 400 m) in the western Weddell Sea near the tip of the Antarctic Peninsula, underwater video recordings of the benthos and oceanographic CTD data of the surrounding area were recorded. A modified Ocean Module V8Sii ROV (Remotely Operated Vehicle) was launched from RV Polarstern and surveyed a portion of the seabed with a maximum extent of 110 by 35 m. The device was equipped with two cameras of different resolutions: an HD camera (Kongsberg oe14-502, 720p50) and a 4k camera (SubC Imaging Mk6, 2160p25). Environmental data was recorded with a CTD (SeaBird 19plusV2), which included sensors for chlorophyll a (Wetlabs FLRT), oxygen (SEB 43), pH (SEB 18) and PAR (Biospherical), in addition to standard instruments for conductivity, temperature and pressure. The ROV's position was recorded using iXblue's GAPS USBL (Ultra-Short Baseline). In addition, the ROV's path across the seabed was recorded using a DVL from RD instruments (see metadata). The global orientation with respect to magnetic north was determined with an internal IMU device.
The video footage gives a comprehensive impression of the unique local cold-water ecology of the seafloor. To determine the true image scale on the high-resolution footage, a series of reference lasers were used to indicate 10 cm on the recorded objects. An additional altimeter (Tritech) provided acoustically measured distances to the HD camera (see metadata).
Related to:
Dorschel, Boris (2019): The Expedition PS118 of the Research Vessel POLARSTERN to the Weddell Sea in 2019. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 735, 149 pp, https://doi.org/10.2312/BzPM_0735_2019
Owsianowski, Nils; Richter, Claudio (2022): Video recordings of the benthos and accompanying oceanographic CTD data taken during ROV dive PS118_9-10 of POLARSTERN cruise PS118 near the tip of the Antarctic Peninsula. PANGAEA, https://doi.org/10.1594/PANGAEA.949399
Project(s):
Bentho-Pelagic Processes @ AWI (AWI_BPP)
Coverage:
Median Latitude: -64.019790 * Median Longitude: -55.917716 * South-bound Latitude: -64.021141 * West-bound Longitude: -55.918645 * North-bound Latitude: -64.018440 * East-bound Longitude: -55.916787
Date/Time Start: 2019-03-13T02:12:32 * Date/Time End: 2019-03-13T03:44:56
Minimum DEPTH, water: 377.1 m * Maximum DEPTH, water: 405.1 m
Event(s):
PS118_9-10 * Latitude Start: -64.018440 * Longitude Start: -55.918645 * Latitude End: -64.021141 * Longitude End: -55.916787 * Date/Time Start: 2019-03-13T01:55:10 * Date/Time End: 2019-03-13T05:07:06 * Elevation Start: -405.0 m * Elevation End: -401.0 m * Location: Weddell Sea * Campaign: PS118 * Basis: Polarstern * Method/Device: Remote operated vehicle (ROV)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Owsianowski, Nils | Geocode | ||
| 2 | DEPTH, water | Depth water | m | Owsianowski, Nils | Geocode | |
| 3 | Heading | Head | deg | Owsianowski, Nils | ||
| 4 | Roll angle | Roll | deg | Owsianowski, Nils | ||
| 5 | Current meter, pitch | Pitch | deg | Owsianowski, Nils | ||
| 6 | LATITUDE | Latitude | Owsianowski, Nils | Geocode – ship | ||
| 7 | LONGITUDE | Longitude | Owsianowski, Nils | Geocode – ship | ||
| 8 | LATITUDE | Latitude | Owsianowski, Nils | Geocode – ROV | ||
| 9 | LONGITUDE | Longitude | Owsianowski, Nils | Geocode – ROV | ||
| 10 | Height above sea floor/altitude | Height above sea floor | m | Owsianowski, Nils | ||
| 11 | Distance, relative | Dist rel | m | Owsianowski, Nils | DVL North | |
| 12 | Distance, relative | Dist rel | m | Owsianowski, Nils | DVL East | |
| 13 | Pressure, water | Press | dbar | Owsianowski, Nils | ||
| 14 | Temperature, water | Temp | °C | Owsianowski, Nils | ||
| 15 | Salinity | Sal | Owsianowski, Nils | |||
| 16 | pH | pH | Owsianowski, Nils | |||
| 17 | Oxygen | O2 | mg/kg | Owsianowski, Nils | ||
| 18 | Fluorescence | Fluorescence | mg/m3 | Owsianowski, Nils | ||
| 19 | Radiation, photosynthetically active | PAR | µE/m2/s | Owsianowski, Nils |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
72085 data points
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