Abstract

The survey was undertaken as a collaboration between Geoscience Australia and the Australian Institute of Marine Science (AIMS). The purpose was to acquire geophysical and biophysical data on shallow (less than 100 m water depth) seabed environments within two targeted areas in the Petrel Sub-basin to support investigation for CO2 storage potential in these areas. Sub bottom profiler data were acquired using a sparker source and a 24 channel streamer, and processed as shallow, high resolution, multi-channel seismic reflection data.
Google map showing geographic bounding box with values North bound -12.25 East bound 129.5 West bound 128.75 South bound -13.0
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For information on acquiring this product,
please contact Geoscience Australia Client Services via:

fax:
+61 2 6249 9960; or
phone:
1800 800 173 (within Australia);
 
+61 2 6249 9966 (outside Australia).

Product Type/Sub Type

dataset - Marine Data - Sub bottom profiles

Constraints

license
Creative Commons Attribution 3.0 Australia Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

2012

Product Type

dataset

Topic Category

geoscientificInformation

Keywords

Marine Data
Sub bottom profiles
seismic sections
seismic reflection
marine survey
CO2 capture
Marine Geoscience

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-12.25
East bound
129.5
West bound
128.75
South bound
-13.0

Lineage

Acquisition and processing of the sub bottom profiler data is summarised in the 40 card EBCDIC reel header in each SEG-Y file, according to the SEG-Y standard, and reproduced below for line GA0335_007. C1 FINAL SUB-BOTTOM PROFILER DATA PROCESSED BY GEOSCIENCE AUSTRALIA AUGUST 2012 C2 DATA ACQUIRED BY GEOSCIENCE AUSTRALIA ON AIMS RESEARCH VESSEL SOLANDER C3 SURVEY NO. : GA0335 SURVEY NAME : PETREL SUB BASIN MARINE C4 LINE NO. : GA0335_007 GPS HEADING : 235 DEGREES C5 RECORDING PARAMETERS C6 SYSTEM : GEOMETRICS MARINE DATE RECORDED : MAY 2012 C7 RECORDING GAIN: CHAN 1-16 0 dB, CHAN 17-24 12 dB C8 RECORDING FILTERS : LOW-CUT 0 HZ, HIGH-CUT 0 HZ, NOTCH OUT C9 SAMPLE RATE : 0.25 MS RECORD LENGTH : 0.5 s C10 NO. CHANNELS : 24 DATA FORMAT : SEGY Revision 0 ON DISK C11 SOURCE TYPE : SQUID 2000 SPARKER, CSP-D GENERATOR AT 2000 JOULES (Hi 10) C12 SOURCE OFFSET : 10 M PERPENDICULAR SOURCE LAYBACK : 20 M C13 SOURCE DEPTH : 0.5 M (APPROX) SP INTERVAL : 6.25 M C14 CABLE MODEL : GEOMETRICS GEOEEL GROUP INTERVAL : 3.125 M C15 CABLE LAYBACK : 40 M CABLE DEPTH : 2.5 M (APPROX) C16 NEAR CHANNEL : 1 (APPROX 22 M) FAR CHANNEL : 24 (APPROX 92 M) C17 CMP SPACING : 1.5625 METRES COVERAGE : 6 FOLD C18 FINAL PROCESSING SEQUENCE : MIGRATION 0.5 s, 0.25 ms C19 1: dummy line geom (CDP int 1.5625 m) C20 2: segy to 'disco' internal format C21 3: mute of leaked timing pulse and first arrivals C22 4: band pass filter 160/24 to 1500/72 (Hz/dB per octave) C23 5: whole trace amplitude balance C24 6: surface related multiple elimination C25 7: common midpoint sort C26 8: NMO correction (10% stretch mute), with calculated velocity function C27 9: non surface consistent trim statics using 20 ms gate around water bottom C28 10: AGC (50 ms gate) C29 11: common mid point stack C30 12: minimum entropy deconvolution C31 13: finite difference time migration using 100% stacking velocity function C32 14: band pass filter 160/24 to 1500/72 (Hz/dB per octave) C33 15: tailored water bottom mute (bytes 111-112) C34 16: application static for S & R depth and tide relative to MSL C35 17: trace amplitude scaling and SEG-Y (Revision 1) output C36 C37 Tides from interpolated GPS elevations from CNAV (M Sexton R Parums) C38 CDP coordinates in separate P190 file (M Sexton) C39 GEOPHYSICIST LEONIE JONES; COPYRIGHT COMMONWEALTH OF AUSTRALIA (GEOSCIENCE C40 AUSTRALIA) 2012, CREATIVE COMMONS ATTRIBUTE 3.0 AUSTRALIA LICENCE

Digital Transfer Options

onLine

DISTRIBUTION Format

seg y

Distributor

Role
distributor
Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address

Metadata File Identifier

cfb0ff0f-67ab-1672-e044-00144fdd4fa6

Metadata Standard Name

ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Metadata Standard Version

1.1

Metadata Date Stamp

2012-11-30

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

Role
pointOfContact
Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address
Downloads
For information on acquiring this product,
please contact Geoscience Australia Client Services via:

fax:
+61 2 6249 9960; or
phone:
1800 800 173 (within Australia);
 
+61 2 6249 9966 (outside Australia).