Sedimentary Features (carbonate percentage) of the Australian EEZ (National Geoscience Dataset)
The map provides a visual representation of the carbonate 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 marine sediment database (MARS - http://www.ga.gov.au/oracle/mars/) of Geoscience Australia. This dataset is a contribution to the CERF Marine Biodiversity Hub and is hosted temporarily by CMAR on behalf of Geoscience Australia.
Simple
Identification info
- Alternate title
-
bulk_carb1
- Date
- Citation identifier
- Marlin Record Number: 8821
- Credit
-
Geoscience Australias MARine Sediment (MARS) Database - http://www.ga.gov.au/oracle/mars/
- Status
- Completed
- Point of contact
-
Role Organisation Electronic mail address Point of contact Geoscience Australia
- Topic category
-
- Oceans
Extent
))
- Maintenance and update frequency
- Not planned
- CSIRO Global Project List
Resource constraints
- Other constraints
-
This material is released under the Creative Commons Attribution 3.0 Australia Licence.
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distribution format
-
-
Raster Dataset
-
- OnLine resource
-
Data Link
Download dataset (Warning .zip 94 MB)
Data quality info
- Hierarchy level
- Dataset
Report
Result
- Date (Publication)
- Explanation
-
Positional accuracy of individual points varies depending on the source data. Some data is form 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.
Report
Result
- Date (Publication)
- Explanation
-
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.
Report
Result
- Date (Publication)
- Explanation
-
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.
Report
Result
- Date (Publication)
- Explanation
-
complete and verified
Resource lineage
- Statement
-
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 the calcium carbonate 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.
- Hierarchy level
- Dataset
Metadata
- Metadata identifier
- bc1b3741-e7a0-5039-e044-00144f7bc0f4
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation Electronic mail address Point of contact CSIRO Oceans & Atmosphere - Hobart
- Metadata linkage
-
Point of truth URL of this metadata record
Point of truth URL of this metadata record
- Date info (Creation)
- 2007-10-01T00:00:00
- Date info (Revision)
- 2008-08-01T00:00:00
Metadata standard
- Title
-
ISO 19115-3:2018
- Title
-
Marine Community Profile
- Date (Creation)
- 2019-05-30
- Edition
-
3.0
- Edition date
- 2019-05-30T00:00:00
- Cited responsible party
-
Role Organisation Electronic mail address Custodian Marine Community Profile Governance Committee
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