From Australian Oceans Data Network
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Characterisation of seafloor imagery from the Sabrina Coast continental shelf

Created 13/03/2025

Updated 13/03/2025

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A total of 701 still images were analysed from 10 transects on the Sabrina Coast continental shelf. Imagery was collected from the RVIB Nathaniel B Palmer (NBP 14-02, 29 January - 16 March 2014) across a greater than 3000 km2 area. A 'yoyo' camera, with downward facing digital still and video cameras mounted within a tubular steel frame, was deployed on a coaxial cable to image the seafloor. The Ocean Imaging Systems DSC 10000 digital still camera (10.2 megapixel, 20 mm, Nikon D-80 camera) was contained within titanium housing. Camera settings were: F-8, focus 1.9 m, ASA-400. An Ocean Imaging Systems 3831 Strobe (200 W-S) was positioned 1m from the camera at an angle of 26 degrees from vertical. A Model 494 bottom contact switch triggered the camera and strobe at 2.5m above the sea floor, imaging ~ 4.8m2 of sea floor. Parallel laser beams (10 cm separation) provided a reference scale for the images. Transects were conducted at a ship's speed of ~1 knot. Still images were characterised for main taxonomic groups and sediment properties based on the CATAMI scheme of Althaus et al. 2015.

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Title Characterisation of seafloor imagery from the Sabrina Coast continental shelf
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/94179981-6b1f-4813-a5a7-0f8d26f98784
Contact Point
CSIRO Oceans & Atmosphere
metadata@aad.gov.au
Reference Period 29/01/2014 - 16/03/2014
Geospatial Coverage {"type": "Polygon", "coordinates": [[[118.6, -67.0], [121.0, -67.0], [121.0, -66.0], [118.6, -66.0], [118.6, -67.0]]]}
Data Portal data.gov.au

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This dataset was originally found on data.gov.au "Characterisation of seafloor imagery from the Sabrina Coast continental shelf". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/characterisation-of-seafloor-imagery-from-the-sabrina-coast-continental-shelf

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