Petrel Sub-basin Marine Survey (GA-0335 / SOL5463) (NLECI Program) - interpreted geomorphic map

Authors / CoAuthors

Howard, F.J.F.

Abstract

The Petrel Sub-basin Marine Environmental Survey GA-0335, (SOL5463) was undertaken by the RV Solander during May 2012 as part of the Commonwealth Government's National Low Emission Coal Initiative (NLECI). The survey was undertaken as a collaboration between the Australian Institute of Marine Science (AIMS) and GA. The purpose was to acquire geophysical and biophysical data on shallow (less then 100m water depth) seabed environments within two targeted areas in the Petrel Sub-basin to support investigation for CO2 storage potential in these areas. This dataset comprises an interpreted geomorphic map. Interpreted local-scale geomorphic maps were produced for each survey area in the Petrel Sub-basin using multibeam bathymetry and backscatter grids at 2 m resolution and bathymetric derivatives (e.g. slope; 1-m contours). Five geomorphic units; bank, plain, ridge, terrace and valley, were identified and mapped using definitions suitable for interpretation at the local scale (nominally 1:10 000). Maps and polygons were manual digitised in ArcGIS using the spatial analyst and 3D analyst toolboxes.

Product Type

dataset

eCat Id

81955

Contact for the resource

Custodian

EGD

Owner

Commonwealth of Australia (Geoscience Australia)

Custodian

Commonwealth of Australia (Geoscience Australia)
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia

Digital Object Identifier

http://dx.doi.org/10.4225/25/569D6CA16D650

Keywords

Marine Data

( Theme )

GIS Dataset

( Theme )

geomorphology

( Theme )

marine environmental baselines

( Theme )

seabed

( Theme )

marine

Australian and New Zealand Standard Research Classification (ANZSRC)

Marine Geoscience

Published_External

Publication Date

2016-01-01T00:00:00

Creation Date

Security Constraints

Australian Government Security ClassificationSystem

Classification - unclassified

Legal Constraints

Creative Commons Attribution-NonCommercial 4.0 International Licence

Access - license

Use - license

Status

Purpose

Maintenance Information

asNeeded

Topic Category

oceans

Series Information

Lineage

This dataset was hand digitised using the Petrel Sub-Basin Marine Environemnetal Survey - High Resolution Bathymetry Grids. The criteria used to define each geomorphic unit is documented in the associated geomorphic mapping method document. The interpreted geomorphology was mapped at a scale of 1:10 000.

Parent Information

Extents

[-12.90414, -12.304648, 128.769964, 129.327193]

Reference System

Spatial Resolution

Service Information

Associations

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