The Petrel Sub-basin Marine Environmental Survey GA-0335, (SOL5463) was undertaken by the RV Solander during May 2012 as part of the Commonwealth Government's National Low Emission Coal Initiative (NLECI). The survey was undertaken as a collaboration between the Australian Institute of Marine Science (AIMS) and GA. The purpose was to acquire geophysical and biophysical data on shallow (less then 100m water depth) seabed environments within two targeted areas in the Petrel Sub-basin to support investigation for CO2 storage potential in these areas. This dataset comprises an interpreted geomorphic map.
Interpreted local-scale geomorphic maps were produced for each survey area in the Petrel Sub-basin using multibeam bathymetry and backscatter grids at 2 m resolution and bathymetric derivatives (e.g. slope; 1-m contours). Five geomorphic units; bank, plain, ridge, terrace and valley, were identified and mapped using definitions suitable for interpretation at the local scale (nominally 1:10 000). Maps and polygons were manual digitised in ArcGIS using the spatial analyst and 3D analyst toolboxes.
Australian and New Zealand Standard Research Classification (ANZSRC)
Australian Government Security ClassificationSystem
Classification - unclassified
Creative Commons Attribution-NonCommercial 4.0 International Licence
Access - license
Use - license
This dataset was hand digitised using the Petrel Sub-Basin Marine Environemnetal Survey - High Resolution Bathymetry Grids. The criteria used to define each geomorphic unit is documented in the associated geomorphic mapping method document. The interpreted geomorphology was mapped at a scale of 1:10 000.