Product catalogue
Australian National Multiscale Topography Models
The Topographic Position Index measures the topographic slope position of landforms by comparing the mean elevation of a specific neighbourhood area with the elevation value of a central cell. This is done for every cell or pixel in the digital elevation model (DEM) to derive the relative topographic position (e.g. upper, middle and lower landscape elements). Ruggedness informs on the roughness of the surface and is calculated as the standard deviation of elevations. Both these terrain components are used to generate a multi-scale topographic index over the Australian continent using the algorithm developed by Lindsay, J, B., Cockburn, J. M. H. and Russell, H. A. J., 2015. An integral image approach to performing multi-scale topographic position analysis, Geomorphology, 245, 51-61. Topographic position is captured across three spatial scale and display as a ternary image. The ternary image reveals a rich representation of nested landform features with broad application to geomorphological and hydrological process understanding and mapping of regolith and soils.
<b>Value: </b>Broad application in understanding geomorphological and hydrological processes and in mapping regolith and soils over the Australian continent. Can be used as inputs into geospatial modelling and machine learning
<b>Scope: </b>The dataset is national. The algorithm can be run on any digital elevation gridded dataset.
Simple
Identification info
- Date (Creation)
- 2018-09-21
- Date (Publication)
- 2022-02-24T01:43:25
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/144631
Identifier
- Codespace
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Digital Object Identifier
- Cited responsible party
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Role Organisation / Individual Name Details Author Commonwealth of Australia (Geoscience Australia)
Voice
- Purpose
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Broad application in understanding geomorphological and hydrological processes and in mapping regolith and soils over the Australian continent. Can be used as inputs into geospatial modelling and machine learning
- Status
- On going
- Point of contact
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Role Organisation / Individual Name Details Resource provider Minerals, Energy and Groundwater Division
External Contact Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Schroder, I.
MEG Internal Contact
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
))
Temporal extent
- Time period
- 2018-05-01
- Maintenance and update frequency
- Annually
Resource format
- Title
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Product data repository: Various Formats
- Protocol
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FILE:DATA-DIRECTORY
- Name of the resource
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Data Store directory containing the digital product files
- Description
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Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
- theme.ANZRC Fields of Research.rdf
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EARTH SCIENCES
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- {1}
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HVC_144631
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- {1}
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HVC - High Value Collection
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- {1}
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DC2020
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- {1}
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Landform position
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- {1}
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Landform classification
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- {1}
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Geormophology
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- {1}
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Landscape visualisation
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- {1}
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Geomorphometrics
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- {1}
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Published_External
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Resource constraints
- Title
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Creative Commons Attribution 4.0 International Licence
- Alternate title
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CC-BY
- Edition
-
4.0
- Access constraints
- License
- Use constraints
- License
Resource constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice facsimile
- OnLine resource
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View catalogue records associated with this collection
View catalogue records associated with this collection
- Distribution format
-
Resource lineage
- Statement
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<b>Source: </b>Model based on the 3 second resolution (~90m) DEM derived from the Shuttle Radar Topography Mission (SRTM) and implements the algorithm by Lindsay et al. (2015) <br />
<br />
<b>Form: </b>The dataset is displayed as a ternary image with three levels for topographic position using window sizes of 0.2–8.1 km; 8.2–65.2 km and 65.6–147.6 km. These scales are display in red , green and blue colours in the ternary image. <br />
<br />
This Collection record was created to enhance the discoverability and management of the individual products contained in the collection. See the individual eCat records for product specific lineage.
Metadata constraints
- Title
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Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/5390cbef-38dd-445a-b6d8-ebd077f19aeb
- Title
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GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Schroder, I.
MEG Internal Contact
Type of resource
- Resource scope
- Collection
- Name
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Geoscience Australia (GA) High Value Collection
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/144631
- Date info (Creation)
- 2021-01-06T22:40:52
- Date info (Revision)
- 2021-01-06T22:40:52
Metadata standard
- Title
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AU/NZS ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-3
- Title
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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
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Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/122551