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Soil and Landscape Grid National Soil Attribute Maps - Clay (3" resolution) - Release 2

This is Version 2 of the Australian Soil Clay Content product of the Soil and Landscape Grid of Australia.<br><br>


It supersedes the Release 1 product that can be found at <a href=" https://doi.org/10.4225/08/546EEE35164BF "> https://doi.org/10.4225/08/546EEE35164BF </a>.<br></br>


The map gives a modelled estimate of the spatial distribution of clay in soils across Australia.<br></br>


<p>The Soil and Landscape Grid of Australia has produced a range of digital soil attribute products. Each product contains six digital soil attribute maps, and their upper and lower confidence limits, representing the soil attribute at six depths: 0-5&nbsp;cm, 5-15&nbsp;cm, 15-30&nbsp;cm, 30-60&nbsp;cm, 60-100&nbsp;cm and 100-200&nbsp;cm. These depths are consistent with the specifications of the GlobalSoilMap.net project - <a href=" https://esoil.io/TERNLandscapes/Public/Pages/SLGA/Resources/GlobalSoilMap_specifications_december_2015_2.pdf ">GlobalSoilMaps</a>.

The digital soil attribute maps are in raster format at a resolution of 3 arc sec (~90 x 90&nbsp;m pixels).<br>


Detailed information about the Soil and Landscape Grid of Australia can be found at - <a href=" https://esoil.io/TERNLandscapes/Public/Pages/SLGA/index.html ">SLGA</a><br /><br />


<ul style="list-style-type: disc;"><li>Attribute Definition: 2&nbsp;μm mass fraction of the less than 2&nbsp;mm soil material determined using the pipette method;</li>

<li>Units: %;</li>

<li>Period (temporal coverage; approximately): 1950-2021;</li>

<li>Spatial resolution: 3 arc seconds (approx 90&nbsp;m);</li>

<li>Total number of gridded maps for this attribute: 18;</li>

<li>Number of pixels with coverage per layer: 2007M (49200 * 40800);</li>

<li>Data license : Creative Commons Attribution 4.0 (CC BY);</li>

<li>Target data standard: GlobalSoilMap specifications;</li>

<li>Format: Cloud Optimised GeoTIFF.</li></ul>

Simple

Identification info

Date (Creation)
1950-01-01
Date (Publication)
2022-10-28
Date (Revision)
2025-12-10
Edition
2

Identifier

Title
DataCite
Code
doi:10.25919/hc4s-3130
Codespace
http://dx.doi.org

Publisher

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

Author

CSIRO Agriculture and Food - Malone, Brendan ()
Waite Road, Waite, South Australia, 5064, Australia
Waite
South Australia
5064
Australia

Author

CSIRO Agriculture and Food - Searle, Ross (Senior Experimental Scientist)
Waite Road, Waite, South Australia, 5064, Australia
Waite
South Australia
5064
Australia

Collaborator

Commonwealth Scientific and Industrial Research Organisation
147 Underwood Avenue, Floreat, 6014, Western Australia, Australia
Floreat
Western Australia
6014
Australia

Collaborator

Terrestrial Ecosystem Research Network
80 Meiers Road, Indooroopilly, Queensland, 4068, Australia
Indooroopilly
Queensland
4068
Australia

Collaborator

University of Sydney
City Road, Camperdown, New South Wales, 2050, Australia
Camperdown
New South Wales
2050
Australia

Collaborator

Geoscience Australia
101 Jerrabomberra Avenue, Symonston, 2609, Australian Capital Territory, Australia
Symonston
Australian Capital Territory
2609
Australia

Collaborator

Department of Land Resource Management (2012-2016), Northern Territory Government
25 Chung Wah Terrace, Palmerston, Northern Territory, 0830, Australia
Palmerston
Northern Territory
0830
Australia

Collaborator

Office of Environment and Heritage (2011-2019), New South Wales
4 Parramatta Square, 12 Darcy Street, Parramatta, 2150, New South Wales, Australia
Parramatta
New South Wales
2150
Australia

Collaborator

Department of Science, Information Technology, Innovation and the Arts (2012-2015), Queensland Government
400 George Street, Brisbane, Queensland, 4000, Australia
Brisbane
Queensland
4000
Australia

Collaborator

Department of Environment, Water and Natural Resources (2012-2018), South Australian Government
81-95 Waymouth Street, Adelaide, South Australia, 5000, Australia
Adelaide
South Australia
5000
Australia

Collaborator

Department of Primary Industries, Parks, Water and Environment, Tasmanian Government
59 Liverpool Street, Hobart, Tasmania, 7000, Australia
Hobart
Tasmania
7000
Australia

Collaborator

Department of Environment and Primary Industries (2013-2015), Victorian Government
8 Nicholson Street, Melbourne, Victoria, 3000, Australia
Melbourne
Victoria
3000
Australia

Collaborator

Department of Agriculture and Food (2006-2017), Western Australian Government
3 Baron-Hay Court South Perth Western Australia 6151, Australia
South Perth
Western Australia
6151
Australia
Website
https://www.tern.org.au/

Purpose
The aim is to operate an open national capability that provides access to verified, science-quality land surface dynamics data and soils information layers, plus high-end data analytics tools that integrated with other TERN observations can meet the needs of ecosystem researchers and actionable information for policy makers and natural resource managers.<br></br>
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.
Credit
<p></p>This work was jointly funded by CSIRO, Terrestrial Ecosystem Research Network (TERN) and the Australian Government through the National Collaborative Research Infrastructure Strategy (NCRIS).<br> We are grateful to the custodians of the soil site data in each state and territory for providing access to the soil site data, and all of the organisations listed as collaborating agencies for their significant contributions to the project and its outcomes.<br>
Status
Completed

Point of contact

CSIRO Agriculture and Food - Malone, Brendan ()
Waite Road, Waite, South Australia, 5064, Australia
Waite Road
Waite
South Australia
5064
Australia

Point of contact

CSIRO Agriculture and Food - Searle, Ross (Senior Experimental Scientist)
Waite Road, Waite, South Australia, 5064, Australia
Waite Road
Waite
South Australia
5064
Australia
Topic category
  • Environment
  • Geoscientific information

Extent

N
S
E
W


Temporal extent

Time period
1950-01-01 2021-09-13
Title
File Naming Conventions
Website
File Naming Conventions

Related documentation

Maintenance and update frequency
Not planned
GCMD Science Keywords
  • LAND SURFACE
  • AGRICULTURE
  • SOIL TEXTURE
ANZSRC Fields of Research
  • Soil sciences
  • Agricultural land management
  • Agricultural spatial analysis and modelling
TERN Parameter Vocabulary
  • mass fraction of clay in soil
  • Percent
QUDT Units of Measure
  • Percent
GCMD Horizontal Resolution Ranges
  • 30 meters - < 100 meters
GCMD Temporal Resolution Ranges
  • Decadal
Keywords (Discipline)
  • TERN_Soils
  • TERN_Soils_DSM
  • Soil
  • TERN
  • Raster
  • Attribute
  • Clay
  • Continental
  • DSM
  • Global Soil Map
  • Spatial modelling
  • 3-dimensional soil mapping
  • Spatial uncertainty
  • Soil Maps
  • Digital Soil Mapping
  • SLGA

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 GeoTIFFs - Clay, Release 2

OnLine resource
CLY_v2

SLGA Clay - v2

OnLine resource
CLY_v2

SLGA Clay - v2

OnLine resource
Landscape Data Visualiser - Clay, Release 2

OnLine resource
ro-crate-metadata.json

Distribution Information

Distribution format

Distributor

Distributor

Commonwealth Scientific and Industrial Research Organisation
147 Underwood Avenue, Floreat, 6014, Western Australia, Australia
Floreat
Western Australia
6014
Australia
OnLine resource
File Naming Conventions

Data quality info

Hierarchy level
Dataset
Other
The models and the prediction uncertainties were assessed by an external validation dataset. Results were compared with Version 1 Soil and Landscape Grid of Australia (v1.SLGA) (Viscarra Rossel et al. 2015). All predictive and functional accuracy diagnostics demonstrate improvements compared with v1.SLGA. Improvements were noted for the sand and clay fraction mapping with average improvement of 3% and 2%, respectively, in the RMSE estimates. Marginal improvements were made for the silt fraction mapping, which was relatively difficult to predict.
Title
Updating the Australian digital soil texture mapping (Part 2*): spatial modelling of merged field and lab measurements
Website
https://doi.org/10.1071/SR20284

Abstract
Updating the Australian digital soil texture mapping (Part 2*): spatial modelling of merged field and lab measurements

Resource lineage

Statement
The approach, based on machine learning, predicts each soil texture fraction at 90&nbsp;m grid cell resolution, at depths 0–5&nbsp;cm, 5–15&nbsp;cm, 15–30&nbsp;cm, 30–60&nbsp;cm, 60–100&nbsp;cm and 100–200&nbsp;cm. The approach accommodates uncertainty in converting field measurements to quantitative estimates of texture fractions. Existing methods of bootstrap resampling were exploited to predict uncertainties, which are expressed as 90% prediction intervals about the mean prediction at each grid cell. The models and the prediction uncertainties were assessed by an external validation dataset. Results were compared with Version 1 Soil and Landscape Grid of Australia (v1.SLGA) (Viscarra Rossel et al. 2015). All predictive and functional accuracy diagnostics demonstrate improvements compared with v1.SLGA. Improvements were noted for the sand and clay fraction mapping with average improvement of 3% and 2%, respectively, in the RMSE estimates. Marginal improvements were made for the silt fraction mapping, which was relatively difficult to predict. We also made comparisons with recently released World Soil Grid products (v2.WSG) and made similar conclusions.<br><br> All processing for the generation of these products was undertaken using the R programming language (R Core Team, 2020).<br> <ul style="list-style-type: disc;"><li>Code - https://github.com/AusSoilsDSM/SLGA</li> <li>Observation data - https://esoil.io/TERNLandscapes/Public/Pages/SoilDataFederator/SoilDataFederator.html</li> <li>Covariate rasters - https://esoil.io/TERNLandscapes/Public/Pages/SLGA/GetData-COGSDataStore.html</li>
Hierarchy level
Dataset
Title
Methods Summary for Soil Texture
Website
https://aussoilsdsm.esoil.io/slga-version-2-products/soil-texture

Method documentation

Title
R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria.
Website
https://www.r-project.org/

Method documentation

Title
Searle, R., Malone, B., Wilford, J., Austin, J., Ware, C., Webb, M., Roman Dobarco, M., Van Niel, T., (2022). TERN Digital Soil Mapping Raster Covariate Stacks. v2. CSIRO. Data Collection. https://doi.org/10.25919/jr32-yq58
Website
https://doi.org/10.25919/jr32-yq58

Method documentation

Title
Viscarra Rossel, R., Chen, C., Grundy, M., Searle, R., Odgers, N., Holmes, K., Griffin, T., Liddicoat, C., Kidd, D., & Clifford, D., (2014). Soil and Landscape Grid National Soil Attribute Maps - Clay (3" resolution) - Release 1. CSIRO. Data Collection. https://doi.org/10.4225/08/546EEE35164BF
Website
https://doi.org/10.4225/08/546EEE35164BF

Method documentation

Title
Viscarra Rossel R. A., Chen C., Grundy M. J., Searle R., Clifford D., Campbell P. H. (2015) The Australian three-dimensional soil grid: Australia’s contribution to the GlobalSoilMap project. Soil Research 53, 845-864. https://doi.org/10.1071/SR14366
Website
https://doi.org/10.1071/SR14366

Method documentation

Reference System Information

Reference system identifier
EPSG/EPSG:4326

Reference system type
Geodetic Geographic 2D

Metadata

Metadata identifier
urn:uuid/f95dc442-013b-4fad-b31f-91ba86fbe7f5

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/f95dc442-013b-4fad-b31f-91ba86fbe7f5

Point-of-truth metadata URL

Date info (Creation)
2024-07-18T00:00:00.000000+00:00
Date info (Revision)
2025-12-10T10:18:40.862549+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
Agricultural land management Agricultural spatial analysis and modelling Soil sciences
GCMD Science Keywords
AGRICULTURE LAND SURFACE SOIL TEXTURE

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