Coastal seabed mapping survey, Vestfold Hills, Antarctica, February-March 2010
From February to March 2010, Geoscience Australia (GA) conducted a multibeam sonar survey of the coastal waters of the Vestfold Hills in the Australian Antarctic Territory. The survey was conducted jointly with Australian Antarctic Division (AAD) and the Deployable Geospatial Survey Team (DGST) of the Royal Australian Navy. The survey was aimed primarily at understanding the character of the sea floor around Davis Station to better inform studies of the benthic biota and the possible impacts of the Davis sewage outfall. DGST were involved to ensure that the bathymetric data could be used to update and extend the nautical charts of the Davis area.
The survey was conducted using GA's Kongsberg EM3002D multibeam echo sounder and C-Nav Differential GPS system mounted on the AAD work boat Howard Burton. Sixteen under water videos were also collected using the GA Raytech camera system and 3 grabs were also collected to compliment an intensive sampling program by AAD divers and a sampling program conducted in the 1990's by University of Tasmania (Franklin, 1996).
An area of 42 km2 was surveyed intensively immediately off Davis and additional survey lines were run to Long Fjord in the north and to Crooked Fjord and the Sorsdal Glacier in the south. The main survey area had between 150% and 200% coverage as the seabed was esonified from opposing angles to resolve and provide detail to the numerous features of the seafloor such as rocky reefs, iceberg scours, boulders, anchor chain drag marks and grounded icebergs. The new high resolution data provided detailed maps of sea bed morphology and texture classification to complement sample data. Sixteen video transects were collected and 3 grab samples collected in water too deep for the Australian Antarctic Division Diving program.
New high resolution bathymetric grids have been prepared for scientific use and further processing for hydrographic charting is ongoing. A new sea floor geomorphic map has been prepared using the multibeam data, preliminary video and sampling data.
The project was a component of Australian Antarctic Science (AAS) Project 2201 - Natural Variability and Human Induced Change on Antarctic Nearshore Marine Benthic Communities.
In 2011, Dr Phil O'Brien provided to the Australian Antarctic Data Centre the following interim data:
75 cm multibeam data in CARIS format; and
a 4 metre resolution bathymetric grid and an image of the sea floor, both derived from the 75 cm multibeam data.
This data was made available for download from this metadata record.
In August 2013, Geoscience Australia released 2 metre resolution bathymetric and backscatter grids after further processing of the multibeam data. The bathymetry and backscatter data have now been fully processed checked and validated by Geoscience Australia and supersede the interim data. The interim data has been archived by the Australian Antarctic Data Centre. The 2 metre resolution grids and final report are available for download from the Geoscience Australia website.
Simple
Identification info
- Alternate title
- Coastal seabed mapping survey, Vestfold Hills, Antarctica, February-March 2010
- Date (Publication)
- 2011-04-29
- Edition
- 2
Originator
Publisher
Principal investigator
Collaborator
- Name
- CAASM Metadata
- Status
- Completed
Custodian
Spatial resolution
- Spatial resolution
- 2
Spatial resolution
- Spatial resolution
- 2
- Topic category
-
- Geoscientific information
- Oceans
Extent
Extent
- Description
- Temporal Coverage
Temporal extent
- TimePeriod
- 2010-01-25 2010-03-29
- Title
- Coastal seabed mapping survey, Vestfold Hills, Antarctica, February-March 2010 (AAS 2201) - Post Survey Report.
- Date (Publication)
- 2011
- Citation identifier
- 2010/47
Author
- Name
- Geoscience Australia Record
- Page
- 34
- NASA/GCMD Earth Science Keywords
-
- EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > SEAFLOOR TOPOGRAPHY
- EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH
- EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY
- Keywords
-
- Seabed Mapping
- Multibeam
- Davis
- Bathymetry
- Backscatter
- NASA/GCMD Earth Science Keywords
-
- SIDE-SCAN SONAR
- SONAR > Sound Navigation and Ranging
- MSBS > Multibeam Swath Bathymetry System
- NASA/GCMD Earth Science Keywords
-
- SHIPS
- NASA/GCMD Earth Science Keywords
-
- AMD/AU
- CEOS
- AMD
- NASA/GCMD Earth Science Keywords
-
- OCEAN > SOUTHERN OCEAN
- CONTINENT > ANTARCTICA
- GEOGRAPHIC REGION > POLAR
Resource constraints
- Use limitation
- This metadata record is publicly available.
Resource constraints
- Access constraints
- licence
- Other constraints
- The 2 metre resolution bathymetric and backscatter grids and the report are available for download from the Geoscience Australia website (see URLs below). The bathymetric grid is available in ascii xyz, ESRI grid and CARIS formats. The backscatter grid is available in ESRI ascii and ESRI grid formats.
Resource constraints
- File type
- Portable Network Graphic
- Title
- Attribution 4.0 International (CC BY 4.0)
- Website
-
https://creativecommons.org/licenses/by/4.0/legalcode
Legal code for Creative Commons by Attribution 4.0 International license
- Use constraints
- licence
- Other constraints
- This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=Davis_multibeam_grids when using these data.
- Language
- English
- Character encoding
- UTF8
Distribution Information
Distributor
Distributor
Distributor
- Fees
- Free
- Planned available datetime
- 2011-04-29T00:00:00
Distributor
- Fees
- Free
- Planned available datetime
- 2011-04-29T00:00:00
Distributor
- Fees
- Free
- Planned available datetime
- 2011-04-29T00:00:00
Distributor
- Fees
- Free
- Planned available datetime
- 2011-04-29T00:00:00
Distributor
- Fees
- Free
- Planned available datetime
- 2011-04-29T00:00:00
- Units of distribution
- MB
- Transfer size
- 39
- Distribution format
-
- Ascii xyz
- Units of distribution
- MB
- Transfer size
- 41
- Distribution format
-
- ESRI grid
- Units of distribution
- MB
- Transfer size
- 51
- Distribution format
-
- CARIS
- Units of distribution
- MB
- Transfer size
- 62
- Distribution format
-
- ESRI ascii, ESRI grid
- Units of distribution
- Mb
- Transfer size
- 5
- Distribution format
-
- OnLine resource
-
GET DATA
Download point at the Geoscience Australia website for the 2 metre resolution bathymetric grid and the report
- OnLine resource
-
GET DATA
Download point at the Geoscience Australia website for the 2 metre resolution backscatter grid and the report
- OnLine resource
-
PROJECT HOME PAGE
Public information for ASAC project 2201
- OnLine resource
-
VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset
Resource lineage
- Statement
- See the report available for download for further information.
- Hierarchy level
- Dataset
- Maintenance and update frequency
- As needed
- Maintenance note
- 2011-04-29 - record created by Dave Connell from data and a report submitted by Phil O'Brien. 2011-11-07 - record updated by Dave Connell to link it to the parent record. 2012-12-20 - David Smith added two Related URLs to make available a bathymetric grid and a sea floor image derived by Phil O'Brien from this dataset; Distribution Information and Access Constraints edited. 2013-09-06 - David Smith updated the record after Geoscience Australia released an updated and final version of the data and report. The Related URLs now provide for downloading of the final data. The interim data that was previously available for download via this record has been archived by the Australian Antarctic Data Centre. The fields edited were Summary, Quality, Data Resolution, Access Constraints, Related URLs, Distribution Information and Ancillary Keywords. A Publication/Reference was added. 2016-03-22 - record updated by Dave Connell to edit the summary. 2019-03-19 - record updated by Dave Connell for ISO compliance.
Metadata
- Metadata identifier
- string/Davis_multibeam_grids
- Language
- English
- Character encoding
- UTF8
Author
Sponsor
Owner
- Title
- Parent Metadata Record
- Citation identifier
- ASAC_2201
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- a6021979-707c-44c6-85e9-8fc884efafca
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Date (Last Revision)
- 2019-03-19T11:51:28
Identifier
- Description
- metadata.extraction_date
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 8.6
- Metadata linkage
-
http://data.aad.gov.au/metadata/records/Davis_multibeam_grids
Point of truth for the metadata record
- Date info (Creation)
- 2011-04-29T00:00:00
- Date info (Last Update)
- 2019-03-19
Metadata standard
- Title
- ISO 19115-3
- Edition
- 2014
- Other citation details
- Version 1
- Title
- DIF to ISO 19115-1 Profile