• Product catalogue
  •  
  •  
  •  

Rule-based semi-automated tools for mapping seabed morphology from bathymetry data

Seabed morphology maps and data are critical for knowledge-building and best practice management of marine environments. To facilitate objective and repeatable production of these maps, we have developed a number of semi-automated, rule-based GIS tools (Geoscience Australia’s Semi-automated Morphological Mapping Tools (GA-SaMMT)) to operationalise the mapping of a common set of bathymetric high and bathymetric low seabed Morphological Features. The tools have a graphical user interface and were developed using Python scripts under the widely-used proprietary ArcGIS Pro platform. The utility of these tools was tested across nine case study areas that represent a diverse range of complex bathymetric and physiographic settings. Overall, the mapping results are found to be more consistent than manual mapping and allow for capture of greater detail across a range of spatial scales. The mapping results demonstrate a number of advantages of GA-SaMMT, including: 1) requirement of only a bathymetry grid as sole data input; 2) flexibility to apply domain knowledge to user-defined tool parameters or to use default parameter settings; 3) repeatability and consistency in the mapping outputs when using a consistent set of tool parameters (user defined or default); 4) high-degree of objectivity; and 5) efficiency in mapping a large number (thousands) of seabed morphology features in a single dataset. In addition, GA-SaMMT generates 34 and 46 metrics to comprehensively quantify the characteristics of individual seabed bathymetric high and low features, respectively. Our results indicate that attribute metrics are invaluable in the interpretation and modelling of mapped Morphology Features and provide insights into their formative processes and habitat potential for marine communities.


Appeared in Front. Mar. Sci., 28 August 2023, Sec. Ocean Observation, Volume 10.

Simple

Identification info

Date (Creation)
2023-02-15
Date (Publication)
2023-09-13T23:22:11
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/147718

Cited responsible party
Role Organisation / Individual Name Details
Publisher

Commonwealth of Australia (Geoscience Australia)

Voice
Author

Huang, Z.

Internal Contact
Author

Nanson, R.

Internal Contact
Author

Mcneil, M.

Internal Contact
Author

Wenderlich, M.

Internal Contact
Author

Gafeira, J.

External Contact
Author

Post, A.

Internal Contact
Author

Nichol, S.

Internal Contact
Name

Frontiers in Marine Science

Purpose

This paper is written as a product of national seabed morphology and geomorphology mapping project in Marine sections. The paper describes GA-SaMMT tools developed for mapping seabed morphology and presents the mapping results of using these tools for nine case studies. We intend to use this paper as an effective way of promote the use of GA-SaMMT tools and the published morphology classification scheme which GA has a significant contribution to.

Status
Point of contact
Role Organisation / Individual Name Details
Resource provider

Place and Communities Division

External Contact
Point of contact

Commonwealth of Australia (Geoscience Australia)

Voice
Point of contact

Huang, Z.

Internal Contact
Spatial representation type
Topic category
  • Geoscientific information

Extent

N
S
E
W


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

Keywords
  • seabed

Keywords
  • morphology

Keywords
  • GA-SaMMT

Keywords
  • mapping

Keywords
  • bathymetry

Keywords
  • ArcGIS python tools

Keywords
  • geomorphology

theme.ANZRC Fields of Research.rdf
  • Marine geoscience

  • Geoinformatics not elsewhere classified

Keywords
  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

https://creativecommons.org/licenses/by/4.0/

Addressee
Role Organisation / Individual Name Details
User

Any

Use constraints
License
Use constraints
Other restrictions
Other constraints

© Commonwealth of Australia (Geoscience Australia) 2023

Resource constraints

Title

Australian Government Security Classification System

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified
Classification system

Australian Government Security Classification System

Associated resource

Association Type
Informed
Title

Bynoe Harbour Marine Survey 2016: GA4452/SOL6432 Post-survey report

Citation identifier
100945

Citation identifier
f5ffb3d9-a0e6-4098-93ed-9a2883cea1e8

Website

http://pid.geoscience.gov.au/dataset/ga/100945

Link to eCat metadata record landing page

Associated resource

Association Type
Informed
Title

Characterising Marine Abiotic Patterns in the Darwin-Bynoe Harbour region: Summary report, Physical Environments, Darwin Harbour Habitat Mapping Project

Citation identifier
127386

Citation identifier
80c85537-63d8-4932-b1f9-1d7545a1fe6d

Website

http://pid.geoscience.gov.au/dataset/ga/127386

Link to eCat metadata record landing page

Associated resource

Association Type
Generated
Title

Bynoe Harbour Habitat Mapping Bathymetry Survey (SOL6432/GA4452)

Citation identifier
144556

Citation identifier
21ab9986-4289-44eb-9b2d-7db4b8f74d68

Website

http://pid.geoscience.gov.au/dataset/ga/144556

Link to eCat metadata record landing page

Associated resource

Association Type
Informed
Title

Seabed Environments and Shallow Geology of the Petrel Sub-basin, Northern Australia SOL5463 (GA0335) Post Survey Report (NLECI Program)

Citation identifier
74627

Citation identifier
c8c74d01-f382-572e-e044-00144fdd4fa6

Website

http://pid.geoscience.gov.au/dataset/ga/74627

Link to eCat metadata record landing page

Associated resource

Association Type
Generated
Title

Petrel Sub-basin Marine Survey (GA-0335 / SOL5463) (NLECI Program) - High Resolution Bathymetry Grids

Citation identifier
74866

Citation identifier
cd5509ee-00c9-098d-e044-00144fdd4fa6

Website

http://pid.geoscience.gov.au/dataset/ga/74866

Link to eCat metadata record landing page

Associated resource

Association Type
Informed
Title

Oceanic Shoals Commonwealth Marine Reserve (Timor Sea) Biodiversity Survey: GA0339/SOL5650 Post-Survey Report

Citation identifier
76658

Citation identifier
e091142b-a617-0d43-e044-00144fdd4fa6

Website

http://pid.geoscience.gov.au/dataset/ga/76658

Link to eCat metadata record landing page

Associated resource

Association Type
Generated
Title

Oceanic Shoals Commonwealth Marine Reserve - High Resolution Multibeam Sonar Bathymetry Grids

Citation identifier
79006

Citation identifier
f21824a7-8db1-5c00-e044-00144fdd4fa6

Website

http://pid.geoscience.gov.au/dataset/ga/79006

Link to eCat metadata record landing page

Associated resource

Association Type
Informed
Title

Seabed Environments and Shallow Geology of the Leveque Shelf, Western Australia SOL5754 (GA0340) Post Survey Report

Citation identifier
78749

Citation identifier
ef58506e-5ed1-7007-e044-00144fdd4fa6

Website

http://pid.geoscience.gov.au/dataset/ga/78749

Link to eCat metadata record landing page

Associated resource

Association Type
Generated
Title

Data package - Seabed environments and shallow geology of the Leveque Shelf, Browse Basin, Western Australia.

Citation identifier
83727

Citation identifier
180ea3b0-773d-569b-e053-10a3070aa65f

Website

http://pid.geoscience.gov.au/dataset/ga/83727

Link to eCat metadata record landing page

Associated resource

Association Type
Informed
Title

Carnarvon Shelf Survey Post-Cruise Report

Citation identifier
68525

Citation identifier
a05f7892-dbcb-7506-e044-00144fdd4fa6

Website

http://pid.geoscience.gov.au/dataset/ga/68525

Link to eCat metadata record landing page

Associated resource

Association Type
Generated
Title

MH370 Phase 1 Optimal Bathymetry datasets (GA-4421, GA-4422 and GA-4430)

Citation identifier
82625

Citation identifier
0bf01609-fde2-3d9c-e054-00144fdd4fa6

Website

http://pid.geoscience.gov.au/dataset/ga/82625

Link to eCat metadata record landing page

Associated resource

Association Type
Informed
Title

Seabed Environments and Subsurface Geology of the Capel-Faust Basins and Gifford Guyot, Eastern Australia - TAN0713 Post-survey Report

Citation identifier
68630

Citation identifier
a05f7892-dc28-7506-e044-00144fdd4fa6

Website

http://pid.geoscience.gov.au/dataset/ga/68630

Link to eCat metadata record landing page

Associated resource

Association Type
Generated
Title

Gifford Marine Park Bathymetry - 30m Resolution Grid

Citation identifier
121193

Citation identifier
b941d108-5e80-41a4-aa86-4ec5e33ef994

Website

http://pid.geoscience.gov.au/dataset/ga/121193

Link to eCat metadata record landing page

Associated resource

Association Type
Generated
Title

Seafloor bathymetry of the Sabrina slope canyons, East Antarctic margin

Citation identifier
144481

Citation identifier
daa5d147-0280-4512-9b35-c0003ee9b5b5

Website

http://pid.geoscience.gov.au/dataset/ga/144481

Link to eCat metadata record landing page

Language
English
Character encoding
UTF8

Distribution Information

Distributor contact
Role Organisation / Individual Name Details
Distributor

Commonwealth of Australia (Geoscience Australia)

Voice facsimile
OnLine resource

Link to Frontiers in Marine Science article

Link to Frontiers in Marine Science article

Distribution format

Resource lineage

Statement

<div>This paper is written as a product of national seabed morphology and geomorphology mapping project in Marine sections.&nbsp;This study used GA-SaMMT ( https://dx.doi.org/10.26186/146832) developed in Geoscience Australia for mapping the seabed morphology. The bathymetry datasets used in this study have been acquired through various funding programs (Commonwealth Environmental Research Facilities Program; National Environmental Reseach Program; National Environmental Science Program; Offshore Energy Security Program; National Low Emissions Coal Initiative / National CO2 Infrastructure Plan). &nbsp;</div><div><br></div><div>This study used nine case studies. The bathymetry datasets and publications of these nine case studies are listed below. Please see the paper for the details of these citations.</div><div>1. Bynoe Harbour: </div><div>a) Siwabessy et al. (2016) http://dx.doi.org/10.11636/Record.2017.004. (eCat: 100945)</div><div>b) Nicholas et al. (2019) http://pid.geoscience.gov.au/dataset/ga/127386. (eCat: 127386)</div><div>c) https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/144556 (eCat: 144556)</div><div><br></div><div>2. Bonaparte Shelf:</div><div>a) Carroll et al. (2012) https://pid.geoscience.gov.au/dataset/ga/74627 (eCat: 74627)</div><div>b) Spinoccia (2012) http://dx.doi.org/10.4225/25/53DB119E95FA4 (eCat: 74866)</div><div><br></div><div>3. Bonaparte Basin:</div><div>a) Nichol et al. (2013) https://pid.geoscience.gov.au/dataset/ga/76658&nbsp;(eCat: 76658)</div><div>b) Siwabessy and Picard (2014) http://dx.doi.org/10.4225/25/562EC3D2542B1 (eCat: 79006)</div><div><br></div><div>4. Leveque Shelf:</div><div>a) Picard et al. (2014) http://dx.doi.org/10.11636/Record.2014.010. (eCat: 78749)</div><div>b) Picard et al. (2016) https://pid.geoscience.gov.au/dataset/ga/83727 (eCat: 83727)</div><div><br></div><div>5. Point Cloates Shelf:</div><div>a) Brooke et al. (2009) https://pid.geoscience.gov.au/dataset/ga/68525 (eCat: 68525)</div><div>b) Nichol et al. (2012)</div><div>c) https://pid.geoscience.gov.au/dataset/ga/77253 (eCat: 77523)</div><div><br></div><div>6. Broken Ridge:</div><div>a) Picard et al. (2018)</div><div>b) Spinoccia (2017) https://pid.geoscience.gov.au/dataset/ga/82625</div><div><br></div><div>7. Tasmanian Seamounts:</div><div>a) Althaus et al. (2009)</div><div>b) Williams et al. (2020)</div><div>c) Williams et al. (2016) https://data.csiro.au/collection/csiro:57308</div><div><br></div><div>8. Gifford Seamounts:</div><div>a) Heap et al. (2009) https://pid.geoscience.gov.au/dataset/ga/68630 (eCat: 68630)</div><div>b) Nanson et al. (2018)</div><div>c) http://dx.doi.org/10.4225/25/5b3174bf2de9b (eCat: 121193)</div><div><br></div><div>9. Sabrina Slope:</div><div>a) O'Brien et al. (2020)</div><div>b) Post et al. (2020)</div><div>c) https://pid.geoscience.gov.au/dataset/ga/144481 (eCat: 144481)</div><div><br></div>

Metadata constraints

Title

Australian Government Security Classification System

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/130781a8-0d1d-4778-a8e5-d5d3f5a32ba4

Title

GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
Role Organisation / Individual Name Details
Point of contact

Commonwealth of Australia (Geoscience Australia)

Voice
Point of contact

Huang, Z.

Internal Contact

Type of resource

Resource scope
Document
Name

Journal Article / Conference Paper

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/147718

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/130781a8-0d1d-4778-a8e5-d5d3f5a32ba4

Date info (Creation)
2023-09-13T23:14:19
Date info (Revision)
2023-09-13T23:14:19

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
http://pid.geoscience.gov.au/dataset/ga/122551

 
 

Spatial extent

N
S
E
W


Keywords

theme.ANZRC Fields of Research.rdf
Geoinformatics not elsewhere classified Marine geoscience

Provided by

Access to the portal
Read here the full details and access to the data.

Associated resources

Not available


  •  
  •  
  •