A 30-meter resolution Digital Elevation Model (DEM) compiled from all available source bathymetry data for Northern Australia's continental shelf. The model covers a region over 400 km wide and approximately 1500 km long, encompassing coral reefs, sand cays, and drowned river valleys. It was produced by Geoscience Australia in 2018 using edited multibeam surveys, LiDAR, and satellite-derived bathymetry.
Use Cases
- Modeling seafloor topography for safe shipping navigation based on the high-resolution depth model.
- Planning environmental management and conservation efforts based on the mapped coral reefs and shelf banks.
- Studying continental shelf morphology and slope canyons based on the compiled multibeam survey data.
- Analyzing intertidal zone dynamics using the integrated Intertidal Elevation Model DEM.
Strengths
- High 30-meter spatial resolution provides detailed seafloor mapping.
- Integrates multiple data sources including multibeam surveys, airborne LiDAR, and satellite-derived bathymetry.
- Covers a vast region over 400 km wide and approximately 1500 km long.
Limitations
- Description metadata is limited; actual data quality requires manual inspection after download.
- Column-level documentation is absent; field semantics must be inferred after download.
- Last updated 2026-05-14 03:08:47.231738; freshness should be verified.
Provenance
- Source
- Geoscience Australia Data
- Collection Method
- Compilation and editing of multibeam surveys, airborne LiDAR bathymetry, and satellite-derived bathymetry into a consistent DEM.
- Time Range
- 2018
- Freshness
- Last updated 2026-05-14 03:08:47.231738.
- Geography
- Northern Australia, including the continental shelf extending from Western Australia and the Northern Territory into the Indian Ocean and Timor Sea.