This flythrough presents seabed bathymetry compilations for the Australian Antarctic margin. The bathymetry data presented is derived from a combination multibeam, singlebeam and satellite data (namely ETOPO2). There are few areas of the Antarctic margin with high quality multibeam data, but where present, such as off the Davis coastline, these data reveal a complex seabed environment. Bathymetry data is a powerful tool for mapping seabed environments and predicting the potential distributions of biological communities. Images showing different types of seabed communities are included for the George V margin and the Davis coastline.

Flythrough movie showing the bathymetry of Carnarvon shelf, highlighting benthic habitats at Point Cloates. The bathymetric image is derived from multibeam sonar collected in 2008 using a 300 kHz Simrad EM3002 system on RV Solander. Key features on the shelf include a prominent ridge at 60 m water depth and a complex area of smaller ridges and mounds across the inner shelf. The ridges and mounds provide hard substrate for diverse coral and sponge communities. The Carnarvon shelf is a study site for the Marine Biodiversity Research Hub, funded through the Commonwealth Environment Research Facilities (CERF) programme. Survey work was carried out as a collaboration between Geoscience Australia and the Australian Institute of Marine Science. Further information is provided in GA Record 2009/02.

The ACT Region 2009 Fly-through illustrates the use of the map and data throughout the ACT community - as a tool to safeguard it.

Short Version - shows orthographic animations only for each of 5 scenarios with a combined maximum inundation outline for 3 scenarios at end. Description: - Tropical Cyclone Alby passed close to the southwest corner of West Australia on April 4th 1978. Large waves and a storm surge generated by the northerly winds caused substantial coastal erosion along the Lower West coast particularly in the Geographe Bay area. Low-lying areas at Bunbury and Busselton were flooded, forcing the evacuation of many homes including the Bunbury Nursing Home. An approximate 1.1 m storm surge at Busselton caused the tide to peak at 2.5 m about 1 m above the highest astronomical tide. The Busselton Jetty was severely damaged. At Fremantle the surge was about 0.6 m causing a high tide of 1.8 m, about 0.5 m above the highest astronomical tide. [From BOM - http://www.bom.gov.au/weather/wa/cyclone/about/perth/alby.shtml - Retrieved 21/01/2010] This movie displays the results of a number of simulated storm surge events caused by an equivalent storm to Tropical Cyclone Alby on the current built terrain of Mandurah, and projected 2100 coastline with 0.5, 0.8 and 1.1m rises in sea level.

No abstract available

Full Version - shows orthographic and fly-through sequence for each of 5 scenarios with a combined max. inundation outline fly-through at end. Description. - Tropical Cyclone Alby passed close to the southwest corner of West Australia on April 4th 1978. Large waves and a storm surge generated by the northerly winds caused substantial coastal erosion along the Lower West coast particularly in the Geographe Bay area. Low-lying areas at Bunbury and Busselton were flooded, forcing the evacuation of many homes including the Bunbury Nursing Home. An approximate 1.1 m storm surge at Busselton caused the tide to peak at 2.5 m about 1 m above the highest astronomical tide. The Busselton Jetty was severely damaged. At Fremantle the surge was about 0.6 m causing a high tide of 1.8 m, about 0.5 m above the highest astronomical tide. [From BOM - http://www.bom.gov.au/weather/wa/cyclone/about/perth/alby.shtml - Retrieved 21/01/2010] This movie displays the results of a number of simulated storm surge events caused by an equivalent storm to Tropical Cyclone Alby on the current built terrain of Mandurah, and projected 2100 coastline with 0.5, 0.8 and 1.1m rises in sea level. Scenario A TC Alby equivalent at current sea level Scenario B Worst case TC Alby equivalent with current sea level Scenario C Worst case TC Alby equivalent in 2100 with 0.5m sea level rise Scenario D Worst case TC Alby equivalent in 2100 with 0.8m sea level rise Scenario E Worst case TC Alby equivalent in 2100 with 1.1m sea level rise

In December 2010, the Northern Territory Government (NTG) announced funding for high priority environmental monitoring and research activities in Darwin Harbour. Following the announcement, the Darwin Harbour Habitat Mapping Program was developed and managed by the Department of Land Resource Management (DLRM). Under the Program, DLRM collaborated with GA, the Australian Institute of Marine Science (AIMS), and the Darwin Port Corporation to undertake multibeam and backscatter data acquisition for the Darwin Harbour. This flythough presents seabed bathymetry compilations for the Darwin Harbour in the Northern Territory. These videos are intended for potential public release. The overall objective of the INPEX Environmental Offset program `Mapping Marine and Estuarine Benthic Habitats in Darwin and Bynoe harbours is to improve knowledge of the marine habitats in the Darwin and Bynoe harbours region by producing thematic habitat maps to underpin marine resource management decisions.

This flythrough was produced on CD for a media launch held on 17/11/05 in Cairns.

Flythrough movie showing the bathymetry of the shelf surrounding Lord Howe Island (NSW), with examples of seabed habitats and biota. The bathymetric image is derived from merged grids (8 m and 40 m resolution) that incorporates multibeam sonar collected in 2008 using a 30 kHz Simrad EM300 system on RV Southern Surveyor, legacy sonar data from various sources and satellite-derived bathymetry (grid development detailed in GA Record 2010/36). Key features on the shelf bathymetry include a drowned reef that encircles the island and intervening areas of sediment-covered basins. Lord Howe Island shelf is a study site for the Marine Biodiversity Research Hub, funded through the Commonwealth Environment Research Facilities (CERF) programme. Further information is provided in GA Record 2010/26.

Flythrough of the Austrlalian Margin (not including the northern margin) showing detail of the Exmouth Plateau, Perth Canyon, Murray Canyons, NSW Slope and Great Barrier Reef. Gridded bathymetry data shown in this product was sourced from GA and James Cook University.