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Backscatter grids of South East Tasmania Shelf

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Created 20/01/2025

Updated 20/01/2025

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Geoscience Australia carried out marine surveys in southeast Tasmania in 2008 and 2009 (GA0315) to map seabed bathymetry and characterise benthic environments through observation of habitats using underwater towed video. Data was acquired using the Tasmania Aquaculture and Fisheries Institute (TAFI) Research Vessel Challenger. Bathymetric mapping was undertaken in seven survey areas, including: Freycinet Pensinula (83 sq km, east coast and shelf); Tasman Peninsula (117 sq km, east coast and shelf); Port Arthur and adjacent open coast (17 sq km); The Friars (41 sq km, south of Bruny Island); lower Huon River estuary (39 sq km); D Entrecastreaux Channel (7 sq km, at Tinderbox north of Bruny Island), and; Maria Island (3 sq km, western side). Video characterisations of the seabed concentrated on areas of bedrock reef and adjacent seabed in all mapped areas, except for D Entrecastreaux Channel and Maria Island. The datasets contains 7 backscatter grids of the south east Tasmania Shelf produced from the processed EM3002 backscatter data of the survey area using the CMST-GA MB Process.

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Title Backscatter grids of South East Tasmania Shelf
Language eng
Licence Not Specified
Landing Page https://devweb.dga.links.com.au/data/dataset/dd571cd0-8ec3-4efe-8cca-5b50aee2b5e1
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
Data Portal Data.gov.au