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Area of Applicability Summary, Landsat Seasonal Fractional Cover Version 3.0, Australia Coverage

The Area of Applicability (AOA) describes the area to which a predictive model can reliably be applied, based on the predictor space covered by the underlying training data. It was evaluated following the approach proposed by Meyer and Pebesma (2021).<br></br>


The JRSRP seasonal surface reflectance composites between winter 2014 and winter 2024 were used as a proxy for the range of representative surface reflectance values likely to be encountered across the continent under varying environmental conditions from which fractional cover predictions are made. The AOA of the FCv3 model was computed for each seasonal surface reflectance composite, then summarised as a frequency map representing the proportion of seasons that a location was outside the AOA.<br></br>


For each state, five files are provided: an annual product summarising the AOA across all seasons, and four showing seasonal AOA frequencies for summer, autumn, winter, and spring.<br></br>

Simple

Identification info

Date (Creation)
2025-04-30
Date (Publication)
2025-08-10
Date (Revision)
2025-12-10
Edition
1

Publisher

Terrestrial Ecosystem Research Network
Building 1019, 80 Meiers Rd
Indooroopilly
QLD
4068
Australia
+61 7 3365 9097

Author

Joint Remote Sensing Research Program
Chancellors Place, St Lucia, Queensland, 4072, Australia
St Lucia
Queensland
4072
Australia

Author

Department of the Environment, Tourism, Science and Innovation, Queensland Government
41 Boggo Road, Dutton Park, 4102, Queensland, Australia
Dutton Park
Queensland
4102
Australia
Website
https://www.tern.org.au/

Purpose
This dataset is a summary of the Area of Applicability (AOA) of the JRSRP Fractional Cover version 3.0 model, for the period winter 2014 to winter 2024.
Credit
We at TERN acknowledge the Traditional Owners and Custodians throughout Australia, New Zealand and all nations. We honour their profound connections to land, water, biodiversity and culture and pay our respects to their Elders past, present and emerging.
Status
Completed

Point of contact

Department of the Environment, Tourism, Science and Innovation, Queensland Government - Data Enquiries, Earth Observation and Social Sciences (EOSS) ()
41 Boggo Road, Dutton Park, 4102, Queensland, Australia
41 Boggo Road
Dutton Park
Queensland
4102
Australia

Spatial resolution

Spatial resolution
30
Topic category
  • Environment

Extent

Description
Australia
N
S
E
W


Temporal extent

Time period
2014-06-01 2024-08-31
Title
Flood, N. (2013) Seasonal Composite Landsat TM/ETM+ Images Using the Medoid (a Multi‐ dimensional Median). Remote Sensing 5(12), 6481‐6500. 
Website
Flood, N. (2013) Seasonal Composite Landsat TM/ETM+ Images Using the Medoid (a Multi‐ dimensional Median). Remote Sensing 5(12), 6481‐6500. 

Related documentation

Title
Flood, N. Danaher, T. Gill, T. Gillingham, S. (2013) An Operational Scheme for Deriving Standardised Surface Reflectance from Landsat TM/ETM+ and SPOT HRG Imagery for Eastern Australia. Remote Sensing 5, 83-109.
Website
Flood, N. Danaher, T. Gill, T. Gillingham, S. (2013) An Operational Scheme for Deriving Standardised Surface Reflectance from Landsat TM/ETM+ and SPOT HRG Imagery for Eastern Australia. Remote Sensing 5, 83-109.

Related documentation

Title
Meyer H, Pebesma E (2021) Predicting into unknown space? Estimating the area of applicability of spatial prediction models. Methods in Ecology and Evolution 12(9), 1620-1633.
Website
Meyer H, Pebesma E (2021) Predicting into unknown space? Estimating the area of applicability of spatial prediction models. Methods in Ecology and Evolution 12(9), 1620-1633.

Related documentation

Maintenance and update frequency
Not planned
GCMD Science Keywords
  • VEGETATION COVER
ANZSRC Fields of Research
  • Environmental management
TERN Platform Vocabulary
  • LANDSAT-7
  • LANDSAT-8
  • LANDSAT-9
TERN Parameter Vocabulary
  • area of applicability
  • Percent
QUDT Units of Measure
  • Percent
GCMD Horizontal Resolution Ranges
  • 30 meters - < 100 meters
GCMD Temporal Resolution Ranges
  • Decadal

Resource specific usage

Specific usage
The Area of Applicability summary dataset contains two bands. Band 1 values are the count of seasons a pixel was outside the AOA. Band 2 values are the percentage of seasons a pixel was outside the AOA. No data is represented by a value of 255.

Resource constraints

Use limitation
The Creative Commons Attribution 4.0 International (CC BY 4.0) license allows others to copy, distribute, display, and create derivative works provided that they credit the original source and any other nominated parties. Details are provided at https://creativecommons.org/licenses/by/4.0/
File name
88x31.png
File description
CCBy Logo from creativecommons.org
File type
png
Linkage
https://w3id.org/tern/static/cc-by/88x31.png

Title
Creative Commons Attribution 4.0 International Licence
Alternate title
CC-BY
Edition
4.0
Website
https://creativecommons.org/licenses/by/4.0/

Access constraints
License
Use constraints
Other restrictions
Other constraints
TERN services are provided on an "as-is" and "as available" basis. Users use any TERN services at their discretion and risk. They will be solely responsible for any damage or loss whatsoever that results from such use including use of any data obtained through TERN and any analysis performed using the TERN infrastructure. <br />Web links to and from external, third party websites should not be construed as implying any relationships with and/or endorsement of the external site or its content by TERN. <br /><br />Please advise any work or publications that use this data via the online form at https://www.tern.org.au/research-publications/#reporting
Other constraints
Please cite this dataset as {Author} ({PublicationYear}). {Title}. {Version, as appropriate}. Terrestrial Ecosystem Research Network. Dataset. {Identifier}.

Resource constraints

Classification
Unclassified

Distribution Information

Distribution format

Distributor

Distributor

Terrestrial Ecosystem Research Network
80 Meiers Road, Indooroopilly, Queensland, 4068, Australia
Indooroopilly
Queensland
4068
Australia
OnLine resource
Cloud Optimised GeoTIFF - Area of Applicability

OnLine resource
Area of Applicability

OnLine resource
landsat_fractional_cover_aoa

Area of Applicability Summary, Landsat Seasonal Fractional Cover Version 3.0, Australia Coverage

OnLine resource
Landscapes Maps Visualizer

OnLine resource
ro-crate-metadata.json

Data quality info

Hierarchy level
Dataset

Resource lineage

Statement
The training data for the FC3 model (SLATS Star Transects – Australian field sites), consisting of approximately 4000 field observations of fractional cover collected across Australia between 1997 to 2018, were matched to the nearest date, clear Landsat 5 TM,7 ETM+ or 8 OLI overpass, and the surface reflectance values calculated using the procedures described in Flood et. al. (2013), for a 3x3 pixel window.<br></br> Using the approach described in Meyer and Pebesma (2021), minimum distances between weighted predictors in the training data were calculated. An AOA threshold defined as the outlier removed maximum dissimilarity index (DI) of the training data was derived via cross-validation. The value of this threshold was found to be 0.128.<br></br> A DI image was then calculated to quantify the dissimilarity between each seasonal surface reflectance composite and the reflectance values of the FC3 model calibration data. The final AOA summary data was then calculated by stacking all seasonal DI images and recording the number of times the AOA threshold was exceeded. The count and percentage of AOA threshold exceedance was stored as band 1 and band 2 respectively in the output raster.<br></br> Finally, ocean pixels were masked and set to the no data value of 255.<br></br>
Hierarchy level
Dataset
Title
Meyer H, Pebesma E (2021) Predicting into unknown space? Estimating the area of applicability of spatial prediction models. Methods in Ecology and Evolution 12(9), 1620-1633.
Website
https://www.researchgate.net/publication/352050132_Predicting_into_unknown_space_Estimating_the_area_of_applicability_of_spatial_prediction_models

Method documentation

Reference System Information

Reference system identifier
EPSG/EPSG:3577

Reference system type
Geodetic Geographic 2D

Metadata

Metadata identifier
urn:uuid/b02f7a17-1f95-4bca-bb4b-df949b13f241

Title
TERN GeoNetwork UUID

Language
English
Character encoding
UTF8

Point of contact

Terrestrial Ecosystem Research Network
Building 1019, 80 Meiers Rd
Indooroopilly
QLD
4068
Australia
+61 7 3365 9097

Type of resource

Resource scope
Dataset
Metadata linkage
https://geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/b02f7a17-1f95-4bca-bb4b-df949b13f241

Point-of-truth metadata URL

Date info (Creation)
2025-06-11T00:00:00.000000+00:00
Date info (Revision)
2025-12-10T10:07:19.955040+00:00

Metadata standard

Title
ISO 19115-1:2014/AMD 1:2018 Geographic information - Metadata - Fundamentals
Edition
1

Metadata standard

Title
ISO/TS 19115-3:2016
Edition
1.0

Metadata standard

Title
ISO/TS 19157-2:2016
Edition
1.0
Title
Terrestrial Ecosystem Research Network (TERN) Metadata Profile of ISO 19115-3:2016 and ISO 19157-2:2016
Date (published)
2021
Edition
1.0

Identifier

Code
10.5281/zenodo.5652221
Website
https://github.com/ternaustralia/TERN-ISO19115/releases/tag/v1.0

 
 

Overviews

Spatial extent

N
S
E
W


Keywords

ANZSRC Fields of Research
Environmental management
GCMD Science Keywords
VEGETATION COVER

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

Associated resources

Not available


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