Gippsland 2D Infill 2015 Marine Seismic Survey, (GA-0352) - High Resolution Bathymetry Grids

Geoscience Australia conducted a marine seismic survey (GA-0352) over poorly defined areas of the Gippsland Basin between 5th of April to the 24th of April 2015. The aim was to acquire industry-standard precompetitive 2D seismic data, Multi-beam echo-sounder (MBES) and sub-bottom profiling (SBP) data to support an assessment of the CO2 storage potential of the basin. The survey, undertaken as part of the Department of Industry and Science's National CO2 Infrastructure Plan (NCIP), aimed to identify and characterise indicators of natural hydrocarbon or fluid seepage that may indicate compromised seal integrity in the region. The data collected during this survey will enhance sequence stratigraphic studies in the Gippsland Basin that provide constraints on the most suitable areas for storage of CO2 and help to identify potential CO2 storage reservoirs. The survey was conducted by Gardline CGG vessel MV Duke The data collected during the survey are available for free download from the Geoscience Australia website. This dataset include all the bathymetry data collected during the survey.<p><p>This dataset is not to be used for navigational purposes.

Identification info

Date (Publication): 2015-01-01T00:00:00

Citation identifier: Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/83957

Cited responsible party

Role	Organisation / Individual Name	Details
Publisher	Geoscience Australia	Canberra
Author	Spinoccia, M.	1

Point of contact

Role	Organisation / Individual Name	Details
Point of contact	Commonwealth of Australia (Geoscience Australia)	Voice
Point of contact	Spinoccia, M.	Place and Communities Internal Contact

Topic category

Geoscientific information

Extent

Maintenance and update frequency: As needed

Resource format

Title: Product data repository: Various Formats

Website: Data Store directory containing the digital product files

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

Australian and New Zealand Standard Research Classification (ANZSRC)

EARTH SCIENCES

{1}

HVC_144641

Project

AusSeabed

{1}

Data Package

Theme

Bathymetry

Theme

geological storage of CO2

Theme

marine survey

Theme

Exclusive Economic Zone

Theme

seismics

{1}

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: CARIS CSAR Grid 15

CARIS CSAR Grid 15

OnLine resource: CARIS CSAR Grid 14

CARIS CSAR Grid 14

OnLine resource: CARIS CSAR Grid 13

CARIS CSAR Grid 13

OnLine resource: CARIS CSAR Grid 12

CARIS CSAR Grid 12

OnLine resource: CARIS CSAR Grid 11

CARIS CSAR Grid 11

OnLine resource: CARIS CSAR Grid 10

CARIS CSAR Grid 10

OnLine resource: CARIS CSAR Grid 9

CARIS CSAR Grid 9

OnLine resource: CARIS CSAR Grid 8

CARIS CSAR Grid 8

OnLine resource: CARIS CSAR Grid 7

CARIS CSAR Grid 7

OnLine resource: CARIS CSAR Grid 6

CARIS CSAR Grid 6

OnLine resource: CARIS CSAR Grid 5

CARIS CSAR Grid 5

OnLine resource: CARIS CSAR Grid 4

CARIS CSAR Grid 4

OnLine resource: CARIS CSAR Grid 3

CARIS CSAR Grid 3

OnLine resource: CARIS CSAR Grid 2

CARIS CSAR Grid 2

OnLine resource: CARIS CSAR Grid 1

CARIS CSAR Grid 1

OnLine resource: ASCII XYZ Grids 9-17

ASCII XYZ Grids 9-17

OnLine resource: ASCII XYZ Grids 1-8

ASCII XYZ Grids 1-8

OnLine resource: CARIS CSAR Grid 16

CARIS CSAR Grid 16

OnLine resource: CARIS CSAR Grid 17

CARIS CSAR Grid 17

OnLine resource: ESRI Raster Grids 1-8

ESRI Raster Grids 1-8

OnLine resource: ESRI Raster Grids 9-17

ESRI Raster Grids 9-17

OnLine resource: Overview map (jpg)

Overview map (jpg)

Distribution format

OnLine resource: KML 1-17

KML 1-17

OnLine resource: Metadata

Metadata

OnLine resource: Gippsland Basin Bathymetry 2015 1m (zip) [2.2 GB]

Gippsland Basin Bathymetry 2015 1m (zip) [2.2 GB]

Distribution format

ZIP

File decompression technique

unzip

Resource lineage

Statement

The Gippsland 2D Infill MSS 2015, GA-0352 was acquired by Geoscience Australia onboard the MV Duke from the 5th of April to the 24th of April 2015.

The Chief scientist onboard was Dr. Robert Langford.

This bathymetry dataset was acquired and processed onboard by Gardline CGG Pte Ltd and further processing was conducted in the office by Michele Spinoccia, using CARIS HIPS & SIPS ver 7.1.2.

1. First a vessel configuration file was created where the co-ordinates of the motion sensor and DGPS antenna and patch test offsets were recorded.

2. A new project was then created and the vessel configuration file was attached to the project file.

3. The raw swath sonar data, in raw.all format, for each line was then imported into the project and the vessel information assigned to the data.

4. The motion sensor, DGPS and heading data were then cleaned using a filter that averaged adjacent data to remove artefacts.

5. Different sound velocity profiles data for each block were attached to the corresponding raw swath sonar data files to correct the depths for changes in the speed of sound through the water column.

6. Then a new blank field area was defined that specified the geographic area of study and the co-ordinate system used. The co-ordinates for the study areas were WGS84 UTM-55S.

7. The data was cleaned by applying several filters that removed any remaining spikes in the bathymetry data using user defined threshold values. A visual inspection of the data for each line was then undertaken where artefacts and noisy data not removed by the filtering process were removed manually using Swath and subset editors modules of the Caris HIPS/SIPS software.

8. All the data for each bathymetric, motion sensor, DGPS, heading, tide and sound velocity profile data were merged to produce the final processed data file. A weighted grid of the processed data was then created for each Block.

In GA the tide was applied to the grid to correct for tidal variations and velocity corrections were performed to correct for different artefacts and mismatches.

9. The processed data was finally exported as grids soundings or false colored images for presentation and reporting and as final processed data in ASCII XYZ , CARIS csar and geotif formats of 1m resolution.

10-The CARIS csar were used by ESRI FME to create in ARC catalogue/info to create a raster file for the entire survey.

Hierarchy level: Dataset

Description

The multibeam bathymetry was acquired by the following survey:

- Survey Name: Gippsland 2D Infill Marine Seismic Survey 2015 (GA-0352) - High Resolution Grids

- Vessel Name: MV Duke

- Institution: Geoscience Australia

- Country: Australia

- Operator: Gardline CGG Pty Ltd.

- Multibeam system: Kongsberg EM2040

- Year of installation: 2011

- Nominal sonar frequency: 300 kHz used as Normal sector

- Number of beams: 400 beams/ping

- Beamwidth across track: 1 degree

- Beamwidth along track:1 degree

- Pulse length: variable

- Selectable depth range: 500m

- Vessel speed: 4 knots

- Start Date: 05/04/2015

- End Date: 24/04/2015

- Start Port: Brisbane

- End Port: Brisbane

- Grid resolution: 1 m

- Number of grids: 17

- Total surface coverage: 624.48 km2 for shipborne bathymetry

- Total sail km 3,898.74 km

- Vertical Datum: MSL

- Horizontal Datum: WGS84 UTM-55S

- Use Limitation: This dataset is not to be used for navigational purposes

Extent

Hierarchy level: Collection hardware

Platform

Identifier

Code: MV Duke

Instrument

Identifier

Code: EM2040

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/1d9fb097-4143-14c3-e053-10a3070aef82

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/83957

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/1d9fb097-4143-14c3-e053-10a3070aef82

Date info (Revision): 2018-04-20T06:03:51

Date info (Creation): 2015-08-19T00:00:00

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

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