Description: This dataset comprises an interpreted geomorphic map produced for the central survey area of the Davis Coastal Seabed Mapping Survey, Antarctica (GA4301) using multibeam bathymetry and backscatter grids and their derivatives (e.g. slope, contours). Six geomorphic units; basin, valley, embayment, pediment, bedrock outcrop and scarp were identified and mapped using definitions suitable for interpretation at the local scale (nominally 1:10 000). For further information on the geomorphic mapping methods and a description of each unit, please refer to O’Brien P.E., Smith J., Stark J.S., Johnstone G., Riddle M., Franklin D. (2015) Submarine geomorphology and sea floor processes along the coast of Vestfold Hills, East Antarctica, from multibeam bathymetry and video data. Antarctic Science 27:566-586. The dataset can be downloaded at the following URL http://www.ga.gov.au/metadata-gateway/metadata/record/89984.
Description: This dataset comprises an interpreted geomorphic map produced for the central survey area of the Davis Coastal Seabed Mapping Survey, Antarctica (GA4301) using multibeam bathymetry and backscatter grids and their derivatives (e.g. slope, contours). Six geomorphic units; basin, valley, embayment, pediment, bedrock outcrop and scarp were identified and mapped using definitions suitable for interpretation at the local scale (nominally 1:10 000). For further information on the geomorphic mapping methods and a description of each unit, please refer to O’Brien P.E., Smith J., Stark J.S., Johnstone G., Riddle M., Franklin D. (2015) Submarine geomorphology and sea floor processes along the coast of Vestfold Hills, East Antarctica, from multibeam bathymetry and video data. Antarctic Science 27:566-586. The dataset can be downloaded at the following URL http://www.ga.gov.au/metadata-gateway/metadata/record/89984.
Description: This dataset comprises an interpreted geomorphic map for each survey area of the Petrel Sub-basin Survey (GA0335) 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. The dataset can be downloaded at the following URL http://www.ga.gov.au/metadata-gateway/metadata/record/81955.
Description: This dataset comprises an interpreted geomorphic map for each survey area of the Petrel Sub-basin Survey (GA0335) 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. The dataset can be downloaded at the following URL http://www.ga.gov.au/metadata-gateway/metadata/record/81955.
Description: This dataset comprises an interpreted geomorphic map for each survey area of Oceanic Shoals Commonwealth Marine Reserve (CMR) Survey (GA0339) using multibeam bathymetry and backscatter grids at 2 m resolution and bathymetric derivatives (e.g. slope; 1-m contours). Six geomorphic units; bank, depression, mound, plain, scarp and terrace 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. For further information on the geomorphic mapping methods please refer to Appendix N of the post-survey report, published as Geoscience Australia Record 2013/38: Nichol, S.L., Howard, F.J.F., Kool, J., Stowar, M., Bouchet, P., Radke, L., Siwabessy, J., Przeslawski, R., Picard, K., Alvarez de Glasby, B., Colquhoun, J., Letessier, T. & Heyward, A. 2013. Oceanic Shoals Commonwealth Marine Reserve (Timor Sea) Biodiversity Survey: GA0339/SOL5650 Post Survey Report. Record 2013/38. Geoscience Australia: Canberra. The dataset can be downloaded at the following URL http://www.ga.gov.au/metadata-gateway/metadata/record/89764.
Description: This dataset comprises an interpreted geomorphic map for each survey area of Oceanic Shoals Commonwealth Marine Reserve (CMR) Survey (GA0339) using multibeam bathymetry and backscatter grids at 2 m resolution and bathymetric derivatives (e.g. slope; 1-m contours). Six geomorphic units; bank, depression, mound, plain, scarp and terrace 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. For further information on the geomorphic mapping methods please refer to Appendix N of the post-survey report, published as Geoscience Australia Record 2013/38: Nichol, S.L., Howard, F.J.F., Kool, J., Stowar, M., Bouchet, P., Radke, L., Siwabessy, J., Przeslawski, R., Picard, K., Alvarez de Glasby, B., Colquhoun, J., Letessier, T. & Heyward, A. 2013. Oceanic Shoals Commonwealth Marine Reserve (Timor Sea) Biodiversity Survey: GA0339/SOL5650 Post Survey Report. Record 2013/38. Geoscience Australia: Canberra. The dataset can be downloaded at the following URL http://www.ga.gov.au/metadata-gateway/metadata/record/89764.
Description: This dataset comprises an interpreted geomorphic map for each survey area of Leveque Shelf MarineSurvey (GA0340) using multibeam bathymetry and backscatter grids at 2 m resolution and bathymetric derivatives (e.g. slope; 1-m contours). Seven geomorphic units; bank, dune, dune (trochoidal), mound, plain, terrace, valley and bedform fields 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. The dataset can be downloaded at the following URL http://www.ga.gov.au/metadata-gateway/metadata/record/81956.
Description: Polygons indicating the extent of bedform fields mapped from bathymetric and backscatter grids collected during the Leveque Shelf Marine Survey (GA0340). The dataset can be downloaded at the following URL http://www.ga.gov.au/metadata-gateway/metadata/record/81956.
Description: This dataset comprises an interpreted geomorphic map for each survey area of Leveque Shelf MarineSurvey (GA0340) using multibeam bathymetry and backscatter grids at 2 m resolution and bathymetric derivatives (e.g. slope; 1-m contours). Seven geomorphic units; bank, dune, dune (trochoidal), mound, plain, terrace, valley and bedform fields 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. The dataset can be downloaded at the following URL http://www.ga.gov.au/metadata-gateway/metadata/record/81956.
Description: This dataset comprises an interpreted geomorphic map for each survey area ofVlaming Sub-basin MarineSurvey (GA0334) using multibeam bathymetry and backscatter grids at 2 m resolution and bathymetric derivatives (e.g. slope; 1-m contours). Eight geomorphic units; depression, mid-shelf margin, mid-shelf plain, mounds, outer shelf, parabolic ridge ridges and sandwave fields 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. The dataset can be downloaded at the following URL http://www.ga.gov.au/metadata-gateway/metadata/record/79578.
Description: Polygons indicating the extent of sandwave fields mapped from bathymetric and backscatter grids collected during the Vlaming Sub-basin Marine Survey (GA0334). The dataset can be downloaded at the following URL http://www.ga.gov.au/metadata-gateway/metadata/record/79578.
Description: This dataset comprises an interpreted geomorphic map for each survey area ofVlaming Sub-basin MarineSurvey (GA0334) using multibeam bathymetry and backscatter grids at 2 m resolution and bathymetric derivatives (e.g. slope; 1-m contours). Eight geomorphic units; depression, mid-shelf margin, mid-shelf plain, mounds, outer shelf, parabolic ridge ridges and sandwave fields 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. The dataset can be downloaded at the following URL http://www.ga.gov.au/metadata-gateway/metadata/record/79578.