Marine Bathymetry Data Collection
Bathymetry is the study and mapping of the sea floor. It involves obtaining measurements of the depth of the ocean and is the equivalent to mapping topography on land. Bathymetric data is collected in multiple ways:
1. Satellite data can be used to produce maps showing general features over a large area at low resolution. Satellite altimetry measures the height of the ocean surface. If there are hills/mountains on the sea floor, the gravitational pull around that area will be greater and hence the sea surface will bulge. This measurement can be used to show where the seafloor is higher, and this can be used to produce maps showing general features over a large area at low resolution.
2. Single beam echosounders produce a single line of depth points directly under the equipment. These measurements are usually made while a vessel is moving to identify general sea floor patterns and/or schools of fish.
3. Equipment that captures swathes of data by acquiring multiple depth points in each area, such as multibeam echosounders (or swath echosounders) and airborne laser measurements (LADS). These datasets are very high resolution, with data down to better than one metre accuracy.
This bathymetry dataset is a collection of singlebeam data sourced from seismic navigation lines, multibeam data, satellite and LADS data acquired by GA and by other government and non-government agencies.
Simple
Identification info
- Date (Publication)
- 1989-01-01T00:00:00
- Edition
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Revision
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/74526
- Cited responsible party
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Role Organisation / Individual Name Details Author Geoscience Australia
1
- Point of contact
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Role Organisation / Individual Name Details Owner Commonwealth of Australia (Australian Hydrographic Office)
Owner Commonwealth of Australia (Geoscience Australia)
Custodian Commonwealth of Australia (Geoscience Australia)
Voice
- Topic category
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- Geoscientific information
Extent
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Temporal extent
- Time period
- 1989-07-01 2017-07-05
- Maintenance and update frequency
- Continual
- Theme
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marine data
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- Theme
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bathymetry
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- Theme
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marine
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- Australian and New Zealand Standard Research Classification (ANZSRC)
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marine geoscience
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- Theme
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multibeam
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- Theme
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bathymetry grid
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- Theme
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marine survey
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- Theme
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coastal
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- Theme
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continental shelf
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- Theme
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geoscience
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- Theme
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environmental science
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- Theme
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sonar
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- Theme
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seabed mapping
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- Keywords
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Published_External
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Resource constraints
- Title
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Creative Commons Attribution 4.0 International Licence
- Alternate title
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CC-BY
- Edition
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4.0
- Access constraints
- License
- Use constraints
- License
Resource constraints
- Title
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Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
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Link to Bathymetry web page
Link to Bathymetry web page
Resource lineage
- Statement
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Most of the bathymetry dataset has been acquired by ships having multibeam sonar systems under their hulls. The first survey in Geoscience Australia’s dataset was acquired by the Royal Australian Navy’s HMAS Cook in July 1989 over the Great Barrier Reef and hundreds of surveys followed since then up to the present date. The dataset geographical extends is from 20 to 180 degrees East and +39 to -70.5 degrees South. It includes scientific surveys, transiting ships through Australian waters, academic surveys in neighbouring pacific countries, States coastal marine and LIDAR surveys. The Horizontal Datum is WGS84 UTM zones. The Vertical Datum is MSL.
Use Limitation: This dataset is not to be used for navigational purposes. This dataset is published with the permission of the CEO, Geoscience Australia.
- Hierarchy level
- Dataset
- Description
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Geoscience Australia (GA)
Reference System Information
- Reference system identifier
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EPSG/msl depth (EPSG:5715)
- Title
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European Petroleum Survey Group (EPSG) Geodetic Parameter Registry
- Date (Publication)
- 2008-11-12T00:00:00
- Cited responsible party
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Role Organisation / Individual Name Details European Petroleum Survey Group
http://www.epsg-registry.org/
Metadata constraints
- Title
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Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
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urn:uuid/c6cdee3f-f253-3715-e044-00144fdd4fa6
- Title
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GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice
Type of resource
- Resource scope
- Dataset
- Name
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dataset
Alternative metadata reference
- Title
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Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/74526
- Date info (Revision)
- 2018-04-20T06:00:28
- Date info (Creation)
- 2012-08-09T00:00:00
Metadata standard
- Title
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AU/NZS ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-3
- Title
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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
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Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/122551