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Isler, Tea; Boehringer, Lilian; Purser, Autun (2024): Ocean Floor Observation and Bathymetry System (OFOBS) seafloor images of the Fram Strait collected during RV POLARSTERN cruise PS136 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.971365

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Published: 2024-10-11 • DOI registered: 2024-11-09

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Abstract:
During the RV POLARSTERN cruise PS136 (2023-05-22 to 2023-06-19) to the long-term ecological research station HAUSGARTEN observatory in the Fram Strait the Ocean Floor Observation and Bathymetry System (OFOBS) was used to collect still and video images from various locations surveyed during the expedition. The OFOBS consisted of a towed underwater camera system equipped with a high-resolution photo-camera (iSiTEC, CANON EOS 5D Mark III) and a high-definition video-camera (iSiTEC, Sony FCB-H11) as well as an integrated sidescan sonar system. The cameras were 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, four LED lights, and a USBL positioning system (Posidonia) to track the position of the OFOBS during deployments, with additional positioning information provided by the integrated INS and DVL systems. An automatic seafloor image was taken every 20 seconds to obtain 'TIMER' stills distributed at regular distances along each of the survey profiles. Additional 'MANUAL' photos were triggered individually when interesting objects appeared in the live feed. In total, 9 OFOBS deployments were carried out. If no positions for the OFOBS were available, the ships position was used instead. Metadata in the form of iFDOs are available for each deployment containing a detailed description of the image collection and curation process.
Keyword(s):
Benthos; Deep-sea ecology; Fram Strait; HAUSGARTEN Long Term Observatory; Seafloor images
Related to:
Soltwedel, Thomas (2023): The Expedition PS136 of the Research Vessel POLARSTERN to the Fram Strait in 2023. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 780, 121 pp, https://doi.org/10.57738/BzPM_0780_2023
Project(s):
FRontiers in Arctic marine Monitoring (FRAM)
Long-term Investigation at AWI-Hausgarten off Svalbard (LTO_Hausgarten)
Coverage:
Median Latitude: 79.036911 * Median Longitude: 5.058686 * South-bound Latitude: 78.616606 * West-bound Longitude: -3.080871 * North-bound Latitude: 79.581739 * East-bound Longitude: 9.527749
Date/Time Start: 2023-05-30T00:08:06 * Date/Time End: 2023-06-16T08:14:35
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
9 datasets

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Datasets listed in this publication series

  1. Isler, T; Boehringer, L; Purser, A (2024): Seafloor images collected along OFOBS profile PS136_4-14 during RV POLARSTERN cruise PS136. https://doi.org/10.1594/PANGAEA.971403
  2. Isler, T; Boehringer, L; Purser, A (2024): Seafloor images collected along OFOBS profile PS136_6-4 during RV POLARSTERN cruise PS136. https://doi.org/10.1594/PANGAEA.971408
  3. Isler, T; Boehringer, L; Purser, A (2024): Seafloor images collected along OFOBS profile PS136_11-12 during RV POLARSTERN cruise PS136. https://doi.org/10.1594/PANGAEA.971404
  4. Isler, T; Boehringer, L; Purser, A (2024): Seafloor images collected along OFOBS profile PS136_13-6 during RV POLARSTERN cruise PS136. https://doi.org/10.1594/PANGAEA.971405
  5. Isler, T; Boehringer, L; Purser, A (2024): Seafloor images collected along OFOBS profile PS136_15-1 during RV POLARSTERN cruise PS136. https://doi.org/10.1594/PANGAEA.971406
  6. Isler, T; Boehringer, L; Purser, A (2024): Seafloor images collected along OFOBS profile PS136_22-1 during RV POLARSTERN cruise PS136. https://doi.org/10.1594/PANGAEA.971407
  7. Isler, T; Boehringer, L; Purser, A (2024): Seafloor images collected along OFOBS profile PS136_34-1 during RV POLARSTERN cruise PS136. https://doi.org/10.1594/PANGAEA.971409
  8. Isler, T; Boehringer, L; Purser, A (2024): Seafloor images collected along OFOBS profile PS136_36-1 during RV POLARSTERN cruise PS136. https://doi.org/10.1594/PANGAEA.971410
  9. Isler, T; Boehringer, L; Purser, A (2024): Seafloor images collected along OFOBS profile PS136_39-1 during RV POLARSTERN cruise PS136. https://doi.org/10.1594/PANGAEA.971402