Bathymetry GA 2009 9sec v4
## **Abstract** \n\nThis dataset and its metadata statement were supplied to the Bioregional Assessment Programme by a third party and are presented here as originally supplied. \n\n\n\nIn 2005 Geoscience Australia and the National Oceans Office undertook a \n\njoint project to produce a consistent,...
| Other Authors: | |
|---|---|
| Format: | Dataset |
| Language: | unknown |
| Published: |
data.gov.au
|
| Subjects: | |
| Online Access: | https://researchdata.edu.au/bathymetry-ga-2009-9sec-v4/1437371 http://data.gov.au/dataset/42883b0b-47a2-456e-8c3a-1cf2626f11c4 |
| Summary: | ## **Abstract** \n\nThis dataset and its metadata statement were supplied to the Bioregional Assessment Programme by a third party and are presented here as originally supplied. \n\n\n\nIn 2005 Geoscience Australia and the National Oceans Office undertook a \n\njoint project to produce a consistent, high-quality 9 arc second \n\n(0.0025° or \\~250m at the equator) bathymetric grid for Australian waters. \n\nIn 2009 there are a number of new datasets that would optimally be \n\nincluded in the grid to ensure the most up to data is available. \n\n\n\nThe 2009 bathymetric grid of Australia has been produced to include the \n\nnew datasets available, and to provide a grid that fixes issues identified\n\n in the previous version. The revised grid has the same extents as its 2005\n\n counterpart, including the Australian water column jurisdiction lying \n\nbetween 92° E and 172° E, and 8° S and 60° S. The waters adjacent to the \n\ncontinent of Australia and Tasmania are included, as are areas surrounding \n\nMacquarie Island, and the Australian Territories of Norfolk Island, Christmas \n\nIsland, and Cocos (Keeling) Islands. The area selected does not include \n\nAustralia's marine jurisdiction off of the Territory of Heard and McDonald \n\nIslands and the Australian Antarctic Territory.\n\n\n\nThis report details the datasets and procedures used to produce the 2009 \n\nbathymetric grid of Australia. As per the 2005 grid, "the underlying data \n\nfrom which this grid is derived can only support the 0.0025deciaml degree (dd)\n\n resolution in areas where direct bathymetric observations are sufficiently \n\ndense (e.g. where swath bathymetry data or digitised chart data exist)" \n\n(Webster and Petkovic, 2005). In areas of land the grid is based on the \n\nrevised Australian 0.0025dd topography grid, the 0.0025dd NZ topography \n\ngrid and the 90m SRTM DEM. In areas where no sounding data are available \n\n(in waters off the Australian shelf), the grid is based on the 2 arc ... |
|---|