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

Revision

Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/74526

Cited responsible party
Role Organisation / Individual Name Details
Author

Geoscience Australia

 1
Point of contact
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
  • Geoscientific information

Extent

N
S
E
W


Temporal extent

Time period
1989-07-01 2017-07-05
Maintenance and update frequency
Continual
Theme

  • marine data

Theme

  • bathymetry

Theme

  • marine

Australian and New Zealand Standard Research Classification (ANZSRC)

  • marine geoscience

Theme

  • multibeam

Theme

  • bathymetry grid

Theme

  • marine survey

Theme

  • coastal

Theme

  • continental shelf

Theme

  • geoscience

Theme

  • environmental science

Theme

  • sonar

Theme

  • seabed mapping

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
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 Bathymetry web page

Link to Bathymetry web page

Resource lineage

Statement

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

Geoscience Australia (GA)

Reference System Information

Reference system identifier
EPSG/msl depth (EPSG:5715)

Title

European Petroleum Survey Group (EPSG) Geodetic Parameter Registry

Date (Publication)
2008-11-12T00:00:00
Cited responsible party
Role Organisation / Individual Name Details

European Petroleum Survey Group

 http://www.epsg-registry.org/

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/c6cdee3f-f253-3715-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/74526

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/c6cdee3f-f253-3715-e044-00144fdd4fa6

Date info (Revision)
2018-04-20T06:00:28
Date info (Creation)
2012-08-09T00:00:00

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

N
S
E
W


Keywords

bathymetry bathymetry grid coastal continental shelf environmental science geoscience marine marine data marine survey multibeam seabed mapping sonar

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Associated resources

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