Australian Bathymetry and Topography Grid, June 2009

<b>This record was superseded on 30/08/2023 with approval from the Director, National Seabed Mapping as it has been superseded by eCat 148758.</b>

In 2005 Geoscience Australia and the National Oceans Office undertook a joint project to produce a consistent, high-quality 9 arc second (0.0025° or ~250m at the equator) bathymetric grid for Australian waters. In 2009 a number of new datasets were included in an updated version of the grid.

The 2009 bathymetric grid of Australia has been produced to include recently acquired datasets, and solutions to issues identified in the previous version. The revised grid has the same extents as its 2005 counterpart, including the Australian water column jurisdiction lying between 92° E and 172° E, and 8° S and 60° S. The waters adjacent to the continent of Australia and Tasmania are included, as are areas surrounding Macquarie Island, and the Australian Territories of Norfolk Island, Christmas Island, and Cocos (Keeling) Islands. The area selected does not include Australia's marine jurisdiction offshore from the Territory of Heard and McDonald Islands and the Australian Antarctic Territory.

This report details the datasets and procedures used to produce the 2009 bathymetric grid of Australia. As per the 2005 grid, the 0.0025 decimal degree (dd) resolution is only supported where direct bathymetric observations are sufficiently dense (e.g. where swath bathymetry data or digitised chart data exist) (Webster and Petkovic, 2005). In areas where no sounding data are available (in waters off the Australian shelf), the grid is based on the 2 arc minute ETOPO (Smith and Sandwell, 1997) and 1 arc minute ETOPO (Amante and Eakins, 2008) satellite derived bathymetry. The topographic data (on shore data) is based on the revised Australian 0.0025dd topography grid (Geoscience Australia, 2008), the 0.0025dd NZ topography grid (Geographx, 2008) and the 90m SRTM DEM (Jarvis et al, 2008).

The final dataset has been provided in ESRI grid and ER Mapper (ers) formats. An associated shapefile has been produced so that the user can identify the input datasets that were used in the final grid.

IMPORTANT INFORMATION

This grid is not suitable for use as an aid to navigation, or to replace any products produced by the Australian Hydrographic Service. Geoscience Australia produces the 0.0025dd bathymetric grid of Australia specifically to provide regional and local broad scale context for scientific and industry projects, and public education.

The 0.0025dd grid size is, in many regions of this grid, far in excess of the optimal grid size for some of the input data used. On parts of the continental shelf it may be possible to produce grids at higher resolution, especially where LADS or multibeam surveys exist. However these surveys typically only cover small areas and hence do not warrant the production a regional scale grid at less than 0.0025dd.

There are a number of bathymetric datasets that have not been included in this grid for various reasons. Comments or queries about the data included in the grid (or excluded) can be directed to: IDEASRequests@ga.gov.au. IDEASRequests@ga.gov There are a number of bathymetric datasets that have not been included in this grid for various reasons. Comments or queries about the data included in the grid (or excluded) can be directed to: IDEASRequests@ga.gov.au.

This grid is not suitable for use as an aid to navigation, or to replace any products produced by the Australian Hydrographic Service.

Identification info

Date (Publication): 2009-01-01T00:00:00

Citation identifier: Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/67703

Citation identifier: Digital Object Identifier/http://dx.doi.org/10.4225/25/53D99B6581B9A

Cited responsible party

Role	Organisation / Individual Name	Details
Publisher	Geoscience Australia	Canberra
Author	Whiteway, T.	1

Issue identification: 2009/021

ISBN: 9781921498896

Status: Superseded

Point of contact

Role	Organisation / Individual Name	Details
Owner	Commonwealth of Australia (Geoscience Australia)
Custodian	Commonwealth of Australia (Geoscience Australia)	Voice
Point of contact	Nichol, S.	PSCD Internal Contact

Spatial resolution

Equivalent scale

Denominator: 5000000

Topic category

Geoscientific information

Extent

Maintenance and update frequency: Not planned

Resource format

Title: Product data repository: Various Formats

Website: Data Store directory containing the digital product files

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

Keywords

HVC_146413

Keywords

Marine Data
Bathymetry Grid

Theme

bathymetry

Theme

data

Theme

National dataset

Theme

marine

Keywords

AU-EEZ

Australian and New Zealand Standard Research Classification (ANZSRC)

Marine Geoscience

Project

AusSeabed

Keywords

Published_External

Resource constraints

Title: Creative Commons Attribution 4.0 International Licence

Alternate title: CC-BY

Edition: 4.0

Website

http://creativecommons.org/licenses/

Access constraints: License

Use constraints: License

Resource constraints

Title: Australian Government Security ClassificationSystem

Edition date: 2018-11-01T00:00:00

Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification: Unclassified

Associated resource

Association Type: Cross reference

Title: AusBathyTopo 250m (Australia) 2023 Grid - A High-resolution Depth Model for Australia (20230004C)

Citation identifier: 148758

Citation identifier: 00648206-505c-4858-8b9d-c2324cc2c7ba

Website

http://pid.geoscience.gov.au/dataset/ga/148758

Link to eCat metadata record landing page

Associated resource

Association Type: Operated on by

Title: Australian Bathymetry and Topography MapServer

Citation identifier: 100250

Citation identifier: 0cfed70e-0afd-4a7c-82b2-bb54a25b6552

Website

http://pid.geoscience.gov.au/service/ga/100250

Link to eCat metadata record landing page

Associated resource

Association Type: Operated on by

Title: Australian Bathymetry and Topography WMS

Citation identifier: 100249

Citation identifier: 4f3e355f-69a6-41f5-b11f-a4b76cd2c0a6

Website

http://pid.geoscience.gov.au/service/ga/100249

Link to eCat metadata record landing page

Associated resource

Association Type: Operated on by

Title: Australian Bathymetry and Topography WCS

Citation identifier: 100237

Citation identifier: 97015339-1f91-4d74-9641-111482f9e47e

Website

http://pid.geoscience.gov.au/service/ga/100237

Link to eCat metadata record landing page

Language: English

Character encoding: UTF8

Distribution Information

Distributor contact

Role	Organisation / Individual Name	Details
Distributor	Commonwealth of Australia (Geoscience Australia)	Voice

OnLine resource: Link to Australian Bathymetry and Topography Grid, June 2009 web coverage service

Link to Australian Bathymetry and Topography Grid, June 2009 web coverage service

OnLine resource: Link to Australian Bathymetry and Topography Grid, June 2009 web map service

Link to Australian Bathymetry and Topography Grid, June 2009 web map service

OnLine resource: Link to Australian Bathymetry and Topography Grid, June 2009 ESRI:ArcGIS:MapServer

Link to Australian Bathymetry and Topography Grid, June 2009 ESRI:ArcGIS:MapServer

OnLine resource: Download the Record (pdf)

Download the Record (pdf)

Distribution format

OnLine resource: XYZ Ascii files Part 2

XYZ Ascii files Part 2

OnLine resource: ER Mapper ers files

ER Mapper ers files

OnLine resource: ER Mapper Raster images

ER Mapper Raster images

OnLine resource: ESRI Grid Files

ESRI Grid Files

OnLine resource: Lineage Shapefiles

Lineage Shapefiles

OnLine resource: Reports, Metadata and Text files

Reports, Metadata and Text files

OnLine resource: XYZ Ascii files Part 1

XYZ Ascii files Part 1

OnLine resource: Ascii BIL files

Ascii BIL files

OnLine resource: Contours

Contours

OnLine resource: Superseded by eCat 148758

Superseded by eCat 148758

Distribution format

OnLine resource: Australian Bathymetry and Topography MapServer

Australian Bathymetry and Topography MapServer

Distribution format

ESRI:ArcGIS:MapServer

OnLine resource: Australian Bathymetry and Topography WMS

Australian Bathymetry and Topography WMS

Distribution format

OnLine resource: Australian Bathymetry and Topography WCS

Australian Bathymetry and Topography WCS

Distribution format

OGC:WCS

Resource lineage

Statement

The data came from a variety of systems with differing data densities and levels of accuracy. In the geographic extents 34Â°N - 79Â°S, 90Â°E - 180Â°E, GA holds approximately 1400 surveys that collected bathymetric data.

This product documents the procedures used to construct the bathymetric grid and their associated displays. The input data were derived from a number of sources, were of variable vintages and quality. A number of approaches were required to process, check and edit the data. The availability of data also varied considerably throughout the region, effectively restricting the maximum useful resolution of the grid in areas where no soundings exist, to that of the satellite predicted bathymetry that was used as infill.

Acknowledgements:

The Digital Elevation Model (DEM) for New Zealand is based on the 250m DEM data supplied by Geographx, New Zealand (www.geographx.co.nz).

The DEM's for Indonesian and Papua New Guinea are based on the SRTM DEM data supplied by the CGIAR Consortium (srtm.csi.cgiar.org/).

The deep ocean data (where high resolution data were not available) is based on the ETOPO1 and ETOPOV2G data supplied by the National Geophysical Data Center, US Department of Commerce (NGDC) (www.ngdc.noaa.gov/).

Hierarchy level: Dataset

Description: Source data not available.

Metadata constraints

Title: Australian Government Security ClassificationSystem

Edition date: 2018-11-01T00:00:00

Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification: Unclassified

Metadata

Metadata identifier

urn:uuid/a05f7892-fae9-7506-e044-00144fdd4fa6

Title: GeoNetwork UUID

Language: English

Character encoding: UTF8

Contact

Role	Organisation / Individual Name	Details
Point of contact	Commonwealth of Australia (Geoscience Australia)	Voice

Type of resource

Resource scope: Dataset

Name: dataset

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier: eCatId/67703

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/a05f7892-fae9-7506-e044-00144fdd4fa6

Metadata linkage

https://ecat.ga.gov.au/geonetwork/accessDenied.jsp/eng/catalog.search#/metadata/a05f7892-fae9-7506-e044-00144fdd4fa6

Metadata linkage

https://ecat.ga.gov.au/geonetwork/skr/eng/catalog.search#/metadata/a05f7892-fae9-7506-e044-00144fdd4fa6

Date info (Revision): 2018-04-22T08:16:01

Date info (Creation): 2008-09-01T00:00:00

Metadata standard

Title: AU/NZS ISO 19115-1:2014

Metadata standard

Title: ISO 19115-1:2014

Metadata standard

Title: ISO 19115-3

Title: Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition: Version 2.0, September 2018

Citation identifier: https://pid.geoscience.gov.au/dataset/ga/122551

Spatial extent

Provided by

Access to the portal

Read here the full details and access to the data.

Associated resources

Not available

Simple

Identification info

Spatial resolution

Equivalent scale

Extent

Resource format

Resource constraints

Resource constraints

Associated resource

Associated resource

Associated resource

Associated resource

Distribution Information

Resource lineage

Metadata constraints

Metadata

Type of resource

Alternative metadata reference

Metadata standard

Metadata standard

Metadata standard

Spatial extent

Keywords

Provided by

Associated resources