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Boehringer, Lilian; Purser, Autun; Chakrabarti, Lisa; Papetti, Chiara; Costa Rodrigues Furtado, Pedro; Schimpf, Karsten; Krämmer, Christopher (2025): Ocean Floor Observation and Bathymetry System (OFOBS) seafloor images of the Weddell Sea, Antarctica collected during RV POLARSTERN cruise PS146 [dataset publication series]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.987706 (DOI registration in progress)

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Published: 2025-12-08

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Abstract:
During the RV POLARSTERN Expedition PS146 to the Weddell Sea from 2024-12-24 to 2025-03-10 the Ocean Floor Observation and Bathymetry System (OFOBS) was used to collect still images and video footage from various locations surveyed during the research cruise. The OFOBS consisted of a towed underwater camera system equipped with a high-resolution photo-camera (iSiTEC, CANON EOS 5D Mark III) set to automatically take images on a 1 min frequency ('TIMER') additionally to manually triggered images when particularly interesting objects appeared on the live feed ('MANUAL'). The camera was mounted on a steel frame (140 L x 92 W x 135 H cm), together with two strobe lights (iSiTEC UW-Blitz 250, TTL driven), three laser pointers spaced with a distance of 50 cm used to estimate the size of seafloor structures. The OFOBS was additionally equipped with a front mounted pan and tilt 4K camera unit and 1 to 2 external battery powered GoPros. Further two triggerable 12l Nisken bottles were mounted on the sides of the device and a 3.5 m circumference fishing net was slung 2 m below the frame and still camera, therefore being in view of the still camera at all times of operation. The sidescan sonar system as well as the USBL positioning system were not in use during this expedition. In total, 10 OFOBS deployments were carried out. Image positions were based on the ships positions. Metadata in the form of iFDOs are available for each deployment containing a detailed description of the image data collection and curation process.
Keyword(s):
Benthos; iFDO; Marine Ecology; Seafloor images; Southern Ocean; Weddell Sea
References:
Schoening, Timm; Durden, Jennifer M; Faber, Claas; Felden, Janine; Heger, Karl; Hoving, Henk-Jan T; Kiko, Rainer; Köser, Kevin; Krämmer, Christopher; Kwasnitschka, Tom; Möller, Klas Ove; Nakath, David; Naß, Andrea; Nattkemper, Tim W; Purser, Autun; Zurowietz, M (2022): Making marine image data FAIR. Scientific Data, 9(1), 414, https://doi.org/10.1038/s41597-022-01491-3
Project(s):
Hybrid Antarctic Float Observation System (HAFOS)
Coverage:
Median Latitude: -72.095474 * Median Longitude: -32.376860 * South-bound Latitude: -77.456329 * West-bound Longitude: -54.305244 * North-bound Latitude: -63.856912 * East-bound Longitude: -11.420625
Date/Time Start: 2025-01-15T06:58:21 * Date/Time End: 2025-03-05T15:56:42
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
10 datasets

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Datasets listed in this publication series

  1. Boehringer, L; Purser, A; Chakrabarti, L et al. (2025): Seafloor images collected along OFOBS profile PS146_23-1 during RV POLARSTERN cruise PS146. https://doi.pangaea.de/10.1594/PANGAEA.987707
  2. Boehringer, L; Purser, A; Chakrabarti, L et al. (2025): Seafloor images collected along OFOBS profile PS146_77-1 during RV POLARSTERN cruise PS146. https://doi.pangaea.de/10.1594/PANGAEA.987805
  3. Boehringer, L; Purser, A; Chakrabarti, L et al. (2025): Seafloor images collected along OFOBS profile PS146_85-1 during RV POLARSTERN cruise PS146. https://doi.pangaea.de/10.1594/PANGAEA.987806
  4. Boehringer, L; Purser, A; Chakrabarti, L et al. (2025): Seafloor images collected along OFOBS profile PS146_115-1 during RV POLARSTERN cruise PS146. https://doi.pangaea.de/10.1594/PANGAEA.987807
  5. Boehringer, L; Purser, A; Chakrabarti, L et al. (2025): Seafloor images collected along OFOBS profile PS146_119-1 during RV POLARSTERN cruise PS146. https://doi.pangaea.de/10.1594/PANGAEA.987808
  6. Boehringer, L; Purser, A; Chakrabarti, L et al. (2025): Seafloor images collected along OFOBS profile PS146_120-1 during RV POLARSTERN cruise PS146. https://doi.pangaea.de/10.1594/PANGAEA.987844
  7. Boehringer, L; Purser, A; Chakrabarti, L et al. (2025): Seafloor images collected along OFOBS profile PS146_128-1 during RV POLARSTERN cruise PS146. https://doi.pangaea.de/10.1594/PANGAEA.987843
  8. Boehringer, L; Purser, A; Chakrabarti, L et al. (2025): Seafloor images collected along OFOBS profile PS146_128-2 during RV POLARSTERN cruise PS146. https://doi.pangaea.de/10.1594/PANGAEA.987845
  9. Boehringer, L; Purser, A; Chakrabarti, L et al. (2025): Seafloor images collected along OFOBS profile PS146_191-1 during RV POLARSTERN cruise PS146. https://doi.pangaea.de/10.1594/PANGAEA.987841
  10. Boehringer, L; Purser, A; Chakrabarti, L et al. (2025): Seafloor images collected along OFOBS profile PS146_192-1 during RV POLARSTERN cruise PS146. https://doi.pangaea.de/10.1594/PANGAEA.987842