Authors / CoAuthors
Siwabessy, J.
Abstract
The Davis Coastal Seabed Mapping Survey, Antarctica (GA-4301 / AAS2201 / HI468) was acquired by the Australian Antarctic Division workboat Howard Burton during February-March 2010 as a component of Australian Antarctic Science (AAS) Project 2201 - Natural Variability and Human Induced Change on Antarctic Nearshore Marine Benthic Communities. The survey was undertaken as a collaboration between Geoscience Australia, the Australian Antarctic Division and the Australian Hydrographic Service (Royal Australian Navy). The objectives were to provide multibeam bathymetry and backscatter of the coastal region of the Vestfold Hills around Davis Station, Antarctica, to aid the understanding of sea bed character, benthic habitats, provide a basis for hydrodynamic modeling of water movement around Davis, and to update and extend the navigational charts of the region.
Product Type
dataset
eCat Id
76730
Contact for the resource
Custodian
Owner
Custodian
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Digital Object Identifier
Keywords
-
- Marine DataBackscatter Grid
- ( Theme )
-
- Antarctic data
- ( Theme )
-
- backscatter
- ( Theme )
-
- marine
- ( Theme )
-
- marine survey
- ( Theme )
-
- antarctica
-
- AQ
- Australian and New Zealand Standard Research Classification (ANZSRC)
-
- Marine Geoscience
-
- Published_External
Publication Date
2013-01-01T00:00:00
Creation Date
Security Constraints
Legal Constraints
Status
Purpose
Maintenance Information
notPlanned
Topic Category
geoscientificInformation
Series Information
Lineage
The grid values are basically the average values of the processed backscatter point data within each grid cell of predefined size
Parent Information
Extents
[-68.68, -68.5, 77.74, 78.11]
Reference System
Spatial Resolution
Service Information
Associations
Source Information
Processing software: CMST-GA MB Process v12.05.07 Survey Name: GA-4301 Coastal Seabed Mapping Survey AAS2201/ HI468 Vessel: Workboat Howard Burton Country: Australia Operator: AAD Bathymetric system used: Kongsberg EM3002D Year of installation: 2010 Nominal sonar frequency: 300 kHz Number of beams: 320 beams Beamwidth across track: 1.5 degrees Beamwidth along track : 1.5 degrees Pulse length: Variable, operator selectable Depth range: 0m - 340m Vessel speed: 3 - 5 knots Start date of survey: 15 February 2010 End date of survey: 12 March 2010 Institution: Geoscience Australia Start port: Hobart End port: Hobart GA Chief Scientist: Phil O'Brien Data acquired by: Ian Atkinson, Phil O'Brien, Ross Bowden and Jade Paddison Data processed by: Justy Siwabessy Grids resolution: 2m Number of grids: 1 77.74 78.11 -68.68 -68.5