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Benthic Position Index Grid of Darwin Harbour

The Benthic (Topographic) Position Index (Weiss 2001) grid indicates the topographic positions of the cells. Positive TPI values represent locations that are higher than the average of their surrounding (ridges); negative TPI values represent locations that are lower than their surrounding (valleys); TPI values near zero are either flat areas or areas of constant slope. The benthic position index grid was derived from the bathymetry grid of Darwin Harbour. Please see the metadata of the bathymety grid for more details (GeoCat No: 74915).


Weiss, A.D., 2001. Topographic position and landforms analysis. In: ESRI international user

conference, 9-13 July 2001, San Diego, CA.

Simple

Identification info

Date (Publication)
2013-01-01T00:00:00
Date (Revision)
2019-05-09T06:15:24
Date (Revision)
2019-05-09T06:26:06
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/75392

Citation identifier
Digital Object Identifier/http://dx.doi.org/10.4225/25/562EC934ADC84

Cited responsible party
Role Organisation / Individual Name Details
Publisher

Geoscience Australia

Canberra
Author

Huang, Z.

1
Point of contact
Role Organisation / Individual Name Details
Custodian

EGD

Owner

Commonwealth of Australia (Geoscience Australia)

Custodian

Commonwealth of Australia (Geoscience Australia)

Voice
Topic category
  • Oceans

Extent

N
S
E
W


Temporal extent

Time period
2013-02-23 2013-02-23
Maintenance and update frequency
Not planned
Keywords
  • Marine Data

  • Bathymetry Grid

Theme
  • bathymetry

Theme
  • marine

Keywords
  • AU-NT

Australian and New Zealand Standard Research Classification (ANZSRC)
  • Marine Geoscience

Keywords
  • 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

File download

Download the file (ArcGIS-grid)

Resource lineage

Statement

The equation used for the calculation of the benthic position index grid is:

tpi = bathy - focalmean(bathy, rectangle, 3, 3) where bathy is the bathymety grid; focalmean() function is avaiable in ArcGIS.

Hierarchy level
Dataset
Description

NERP Marine Biodiversity Hub

Extent

N
S
E
W


Reference System Information

Reference system identifier
EPSG/WGS 84 / UTM zone 52S (EPSG:32752)

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/d69466d6-1553-490e-e044-00144fdd4fa6

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/75392

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/d69466d6-1553-490e-e044-00144fdd4fa6

Date info (Revision)
2018-04-22T08:35:31
Date info (Creation)
2013-02-26T00:00:00

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

 
 

Spatial extent

N
S
E
W


Keywords

bathymetry marine

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Read here the full details and access to the data.

Associated resources

Not available


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