Authors / CoAuthors
Siwabessy, J.
Abstract
Geoscience Australia carried out a marine survey on Carnarvon shelf (WA) in 2008 (SOL4769) to map seabed bathymetry and characterise benthic environments through colocated sampling of surface sediments and infauna, observation of benthic habitats using underwater towed video and stills photography, and measurement of ocean tides and wavegenerated currents. Data and samples were acquired using the Australian Institute of Marine Science (AIMS) Research Vessel Solander. Bathymetric mapping, sampling and video transects were completed in three survey areas that extended seaward from Ningaloo Reef to the shelf edge, including: Mandu Creek (80 sq km); Point Cloates (281 sq km), and; Gnaraloo (321 sq km). Additional bathymetric mapping (but no sampling or video) was completed between Mandu creek and Point Cloates, covering 277 sq km and north of Mandu Creek, covering 79 sq km. Two oceanographic moorings were deployed in the Point Cloates survey area. The survey also mapped and sampled an area to the northeast of the Muiron Islands covering 52 sq km.. The dataset contains 5 backscatter grids of the Carnarvon Shelf area produced from the processed EM3002 backscatter data of the survey area using the CMST-GA MB Process. Please see the metadata for more information.
Product Type
dataset
eCat Id
72001
Contact for the resource
Custodian
Owner
Custodian
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Keywords
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- Marine DataBackscatter Grid
- ( Theme )
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- abiotic surrogates
- ( Theme )
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- backscatter
- ( Theme )
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- marine
- ( Theme )
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- CERF
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- AU-WA
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Marine Geoscience
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- Published_External
Publication Date
2011-01-01T00:00:00
Creation Date
Security Constraints
Legal Constraints
Status
Purpose
Maintenance Information
asNeeded
Topic Category
geoscientificInformation
Series Information
Lineage
The grid values are basically the average values of the processed backscatter point data within each grid cell of predefined size
Parent Information
Extents
[-23.9, -21.56, 113.18, 114.36]
Reference System
Spatial Resolution
Service Information
Associations
Source Information
CERF Marine Biodiversity Hub