Seascapes (on-shelf) for the North-West Bioregion  

Authors / CoAuthors

Whiteway, T.

Abstract

Geoscience Australia has undertaken a classification of biophysical datasets to create seabed habitat maps (termed 'seascapes') for the Australian margin and adjacent sea floor. Seascapes describe a layer of ecologically meaningful biophysical properties that spatially represents potential seabed habitats. Each seascape area corresponds to a region of the seabed that contains similar biophysical properties and, by association, potential habitats and communities. This dataset is a seascape classification for the on-shelf zone of the North-west bioregion. The on-shelf zone is separated from the off-shelf zone due to the availability of the effective disturbance layer for the on-shelf zone only. Also, a higher resolution sea floor temperature layer has been used in the on-shelf analysis.

Product Type

dataset

eCat Id

69145

Contact for the resource

Keywords

• GIS DatasetThematic

( Theme )

• habitat

( Theme )

• GIS

( Theme )

• marine

• AU-WA

Australian and New Zealand Standard Research Classification (ANZSRC)

• Earth Sciences

• Published_Internal

Publication Date

2009-01-01T00:00:00

Creation Date

Security Constraints

Australian Government Security ClassificationSystem    

Classification - unclassified

Legal Constraints

Creative Commons Attribution 4.0 International Licence    

Access - restricted

Use - license

Status

Purpose

Maintenance Information

notPlanned

Topic Category

geoscientificInformation

Series Information

Lineage

Benthic biophysical grids were combined using the ISOclass unsupervised classification methodology in ERMapper and ArcGIS. For a full description of the methodology and discussion of iterative results refer to reports: - Whiteway, T., Heap, A.D., Lucieer, V., Hinde, A., Ruddick, R. & Harris, P.T. (2007). Seascapes of the Australia Margin and Adjacent Sea Floor: Methodology and Results. Geoscience Australia, Record 2007/11 ISBN: 9781921236389, 133pp - Hinde, A., Whiteway, T., Ruddick, R. & Heap, A.D. (2007). Seascapes of the Australian Margin and adjacent sea floor: Keystroke Methodology. Geoscience Australia, Record 2007/10 ISBN: 978192123372, 56pp. The final input Variables used in this classification included (and were sourced from): - Bathymetry (Geoscience Australia) - %Gravel (Geoscience Australia) - %Mud (Geoscience Australia) - Primary Productivity (CSIRO) - Sea Floor Temperature (CSIRO) (Higher resolution) - Slope (Geoscience Australia) - Effective Disturbance (Geoscience Australia)

Parent Information

Extents

[-27.7137, -9.8337, 112.6287, 130.6187]

Reference System

Spatial Resolution

Service Information

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