Data

CTD Camera images - collected from the TEMPO voyage of the RV Investigator IN2021_V01

Australian Ocean Data Network
CSIRO NCMI - Information and Data Centre (Associated with) Data Librarian (Point of contact) Leonie Suter (Australian Antarctic Divison) (Associated with)
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://marlin.csiro.au/geonetwork/srv/api/records/1aacc4fa-6cad-41d8-b87a-d292a8aeee13&rft.title=CTD Camera images - collected from the TEMPO voyage of the RV Investigator IN2021_V01&rft.identifier=1aacc4fa-6cad-41d8-b87a-d292a8aeee13&rft.publisher=Australian Ocean Data Network&rft.description=This dataset contains raw seafloor images and associated metadata collected during the 2021 TEMPO voyage in the East Antarctic sector of the Southern Ocean as part of the Marine National Facility RV Investigator research voyage IN2021_V01. The voyage took place from Hobart, Tasmania, to Hobart between 29 January and 24 March 2021 (AEST) under the TEMPO (Trends in Euphausiids off Mawson, Predators, and Oceanography) program.Most krill research has traditionally focused on the epipelagic zone (surface to ~250 m), although recent observations suggest that krill may also inhabit abyssal environments. To investigate this, a deep-sea camera was mounted to the CTD rosette to observe krill activity near the seafloor during full-depth CTD deployments conducted throughout the voyage.Seafloor imagery was collected during every full-depth CTD deployment. Images were captured using a Canon HFG10 camera mounted to the CTD frame. The camera and lighting system were activated approximately 25 m above the seafloor during the CTD descent, and still images were recorded every 10 seconds with the focus initially set to infinity. The CTD was then lowered to approximately 3–5 m above the seabed, and after two minutes the focus was adjusted to 1 m.For each CTD deployment, the highest-quality image(s) have been included in this dataset. Although the vessel remained as stationary as possible during deployments, natural ship movement and motion in the CTD cable caused the camera to capture slightly different sections of the seabed over time.&rft.creator=Anonymous&rft.date=2026&rft.coverage=westlimit=54.9035; southlimit=-68.0025; eastlimit=147.5539; northlimit=-42.8863; projection=WGS 84 (EPSG:4326)&rft.coverage=westlimit=54.9035; southlimit=-68.0025; eastlimit=147.5539; northlimit=-42.8863; projection=WGS 84 (EPSG:4326)&rft_rights=Creative Commons Attribution 4.0 (CC-BY) https://creativecommons.org/licenses/by/4.0/&rft_subject=oceans&rft_subject=climatologyMeteorologyAtmosphere&rft_subject=Coastal Waters (Australia) | Tasmania Coast, TAS&rft_subject=Marine Features (Australia) | Derwent Estuary, TAS&rft_subject=Global / Oceans | Southern Ocean&rft_subject=Marine Planning Regions (Australia) | Australian Antarctic&rft_subject=Marine National Facility&rft_subject=Video Cameras - underwater - Deep Towed Camera System&rft_subject=CTDs (Conductivity-Temperature-Depth Profilers)&rft_subject=TEMPO: Trends in Euphausiids off Mawson, Predators, and Oceanography&rft_subject=Research Voyage: IN2021_V01&rft_subject=Earth Science | Biological Classification | Animals/Invertebrates&rft_subject=Earth Science | Biological Classification | Animals/Invertebrates | Arthropods | Crustaceans | Euphausiids (Krill)&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution 4.0 (CC-BY)
https://creativecommons.org/licenses/by/4.0/

Full description

This dataset contains raw seafloor images and associated metadata collected during the 2021 TEMPO voyage in the East Antarctic sector of the Southern Ocean as part of the Marine National Facility RV Investigator research voyage IN2021_V01. The voyage took place from Hobart, Tasmania, to Hobart between 29 January and 24 March 2021 (AEST) under the TEMPO (Trends in Euphausiids off Mawson, Predators, and Oceanography) program.

Most krill research has traditionally focused on the epipelagic zone (surface to ~250 m), although recent observations suggest that krill may also inhabit abyssal environments. To investigate this, a deep-sea camera was mounted to the CTD rosette to observe krill activity near the seafloor during full-depth CTD deployments conducted throughout the voyage.

Seafloor imagery was collected during every full-depth CTD deployment. Images were captured using a Canon HFG10 camera mounted to the CTD frame. The camera and lighting system were activated approximately 25 m above the seafloor during the CTD descent, and still images were recorded every 10 seconds with the focus initially set to infinity. The CTD was then lowered to approximately 3–5 m above the seabed, and after two minutes the focus was adjusted to 1 m.

For each CTD deployment, the highest-quality image(s) have been included in this dataset. Although the vessel remained as stationary as possible during deployments, natural ship movement and motion in the CTD cable caused the camera to capture slightly different sections of the seabed over time.

This dataset is part of a larger collection

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147.5539,-42.8863 147.5539,-68.0025 54.9035,-68.0025 54.9035,-42.8863 147.5539,-42.8863

101.2287,-55.4444

text: westlimit=54.9035; southlimit=-68.0025; eastlimit=147.5539; northlimit=-42.8863; projection=WGS 84 (EPSG:4326)

Subjects
CTDs (Conductivity-Temperature-Depth Profilers) | Coastal Waters (Australia) | Tasmania Coast, TAS | Earth Science | Biological Classification | Animals/Invertebrates | Earth Science | Biological Classification | Animals/Invertebrates | Arthropods | Crustaceans | Euphausiids (Krill) | Global / Oceans | Southern Ocean | Marine Features (Australia) | Derwent Estuary, TAS | Marine National Facility | Marine Planning Regions (Australia) | Australian Antarctic | Research Voyage: IN2021_V01 | TEMPO: Trends in Euphausiids off Mawson, Predators, and Oceanography | Video Cameras - underwater - Deep Towed Camera System | climatologyMeteorologyAtmosphere | oceans |

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Other Information
Download the Data from Australian Antarctic Division

url : https://data.aad.gov.au/metadata/AAS_4512_TEMPOCTDcamera_benthicID

Link to the Marine National Facility Webpage (Marine National Facility)

url : https://www.csiro.au/en/about/facilities-collections/MNF

Link to processed data and survey information (plans, summaries, etc.) via MNF Data Trawler (MNF Data Trawler)

url : https://www.marine.csiro.au/data/trawler/survey_details.cfm?survey=IN2021_V01

Identifiers
  • global : 1aacc4fa-6cad-41d8-b87a-d292a8aeee13
ACN 633 798 857