Raw multibeam backscatter data of the Lord Howe Rise

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

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Dataset citation

ANZLIC unique identifier: ANZCW0703016227

Title: Raw multibeam backscatter data of the Lord Howe Rise

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Custodian

Custodian: Geoscience Australia

Jurisdiction: Australia

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Geoscience Australia carried out a marine survey on Lord Howe Island shelf (NSW) in 2008 (SS06_2008) to map seabed bathymetry and characterise benthic environments through colocated sampling of surface sediments and infauna, rock coring, observation of benthic habitats using underwater towed video, and measurement of ocean tides and wave generated currents. Subbottom profile data was also collected to map sediment thickness and shelf stratigraphy. Data and samples were acquired using the National Facility Research Vessel Southern Surveyor. Bathymetric data from this survey was merged with other preexisting bathymetric data (including LADS) to generate a grid covering 1034 sq km. As part of a separate Geoscience Australia survey in 2007 (TAN0713), an oceanographic mooring was deployed on the northern edge of Lord Howe Island shelf. The mooring was recovered during the 2008 survey following a 6 month deployment. The "2461_ss062008" folder contains raw multibeam backscatter data of the Lord Howe Rise. The raw multibeam backscatter data were collected along survey lines using SIMRAD EM300 from aboard RV Southern Surveyor.

ANZLIC search words:

MARINE
MARINE Geology and Geophysics

Spatial domain:

locality map

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

Geographic extent polygon: 158.94 -31.3, 159.4 -31.3, 159.4 -31.9, 158.94 -31.9, 158.94 -31.3,

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

Geographic bounding box:: North bounding latitude: -31.3 °; South bounding latitude: -31.9 °; East bounding longitude: 159.4 °; West bounding longitude: 158.94 °

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Data currency

Beginning date: 2008-04-16

Ending date: 2008-04-27

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Dataset status

Progress: Complete

Maintenance and update frequency: Not Known

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Access

Stored data format:: DIGITAL - xls Microsoft Excel spreadsheet Excel GDA94

Available format type:: DIGITAL - xls Microsoft Excel spreadsheet Excel GDA94

Access constraints:

The raw data is not to be released. Contact custodian for more information.

Order Product

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Data quality

Lineage:

SIMRAD EM300 multibeam sonar operating at 30kHz was used to acquire the backscatter and bathymetry data

Positional accuracy:

The positional accuracy is high as required by the multibeam sonar system to properly function

Attribute accuracy:

The accuracy is quite high because the sonar system is supported by high accuracy auxiliary sensors. The patch test conducted at the beginning of the survey and routine SVP casts during the survey contribute to high accuracy that the system used can provide.

Logical Consistency:

The same setting, data acqusition procedure, and patch test and calibration procedure and methodology were consistanly applied to whole survey.

Completeness:

Completed

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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

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Metadata information

Metadata date: 2013-03-08

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Additional metadata

Metadata reference XHTML: http://www.ga.gov.au/meta/ANZCW0703016227.html

Metadata reference XML: http://www.ga.gov.au/meta/ANZCW0703016227.xml

Authors:Siwaberry, J.

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