Sedimentary Features (sand percentage) of the Australian EEZ (National Geoscience Dataset)

Note: This metadata describes the dataset in accordance with the ANZLIC (Australia New Zealand Land Information Council) Core Metadata Guidelines Version 2.

[back to top]

Dataset citation

ANZLIC unique identifier: ANZCW0703015096

Title: Sedimentary Features (sand percentage) of the Australian EEZ (National Geoscience Dataset)

[back to top]

Custodian

Custodian: Geoscience Australia

Jurisdiction: Australia

[back to top]

Description

Abstract:

The map provides a visual representation of the sand content of seabed sediments expressed

as a weight percentage. The data are represented from 0 to 100%. The data on which this map

is based were compiled from Geoscience Australia's MARine Sediment database (MARS -

http://www.ga.gov.au/oracle/mars/).

ANZLIC search words:

GEOSCIENCES Mapping
MARINE

Spatial domain:

locality map

Geographic extent name: AUSTRALIA EXCLUDING EXTERNAL TERRITORIES - AUS - Australia - Australia

Geographic extent polygon: 109.23 -8.88, 163.19 -8.88, 163.19 -47.19, 109.23 -47.19, 109.23 -8.88,

Note: The format for each Geographic extent name is: Name - Identifier - Category - Jurisdiction (as appropriate) See GEN Register

Geographic bounding box:: North bounding latitude: -8.88 °; South bounding latitude: -47.19 °; East bounding longitude: 163.19 °; West bounding longitude: 109.23 °

[back to top]

Data currency

Beginning date: 2007-10-01

Ending date: 2007-10-01

[back to top]

Dataset status

Progress: Complete

Maintenance and update frequency: Not Known

[back to top]

Access

Stored data format:: DIGITAL - ArcGIS-grid ArcInfo grid WGS84

Available format type:: DIGITAL - ArcGIS-grid ArcInfo grid WGS84

Access constraints:

This material is released under the Creative Commons Attribution 3.0 Australia Licence.

Free Data Download

[back to top]

Data quality

Lineage:

Marine sediment sample information within the Australian Maritime Jurisdiction was sourced by

Geoscience Australia from Australian and International research groups, Government bodies,

private corporate entities, and published/unpublished reports. This information was then used to

populate a National Marine Sediments Database (MARS - http://www.ga.gov.au/oracle/mars/).

MARS is an Oracle database that has been developed by Geoscience Australia in line with

ANZLIC data standards. The point data is from seabed samples where sand content for the

entire sample has been measured or determined through standard laboratory analysis methods,

and was exported from MARS to ARC/GIS for the generation of maps. The point data was then

interpolated using the "inverse distance squared weighted" algorithm to create the raster data

presented here.

Positional accuracy:

Positional accuracy of individual points varies depending on the source data. Some data is from

old records, external records and the methods used to ascertain position accuracy is unknown.

Due to the scale of the map, and quality of the source, the accuracy is assumed to be within 5

km.

Attribute accuracy:

No attribute for data quality exists at this stage. All the attribute data has been entered in by

Geoscience Australia staff from a range of reports. The accuracy depends on human error or

that of the report

Logical Consistency:

All vector data has been visually checked for extraneous points and value added data. In some

circumstances individual datasets were identified as inconsistent within the grid and either left

out of the final grid or were corrected. Regional data sets were then compiled as a single

national coverage. Tests were also carried out on the data for completeness, correct spatial

representation, attribute accuracy, and logical consistency and correctness.

Completeness:

All vector data and details are complete and verified.

[back to top]

Contact information

Contact organisation: Commonwealth of Australia (Geoscience Australia) (GA)
Contact position: Manager Client Services
Mail address: Cnr Jerrabomberra Ave and Hindmarsh Dr
Mail address: GPO Box 378
Locality: Canberra
State: ACT
Country: Australia
Postcode: 2601
Telephone: 02 6249 9966
Facsimile: 02 6249 9960
Electronic mail address: sales@ga.gov.au

[back to top]

Metadata information

Metadata date: 2013-03-08

[back to top]

Additional metadata

Metadata reference XHTML: http://www.ga.gov.au/meta/ANZCW0703015096.html

Metadata reference XML: http://www.ga.gov.au/meta/ANZCW0703015096.xml

Geoscience Australia?s MARine Sediment (MARS) Database -

http://www.ga.gov.au/oracle/mars/

Authors:Tran, M. Baker, C. Potter, A. Burq, S.

[back to top]