My GeoNetwork catalogue
GA Barest Earth (Landsat)
GA Barest Earth (Landsat)
An estimate of the spectra of the barest state (i.e., least vegetation) observed from imagery of the Australian continent collected by the Landsat 5, 7, and 8 satellites over a period of more than 30 years (1983 - 2018).
The bands include BLUE (0.452 - 0.512), GREEN (0.533 - 0.590), RED, (0.636 - 0.673) NIR (0.851 - 0.879), SWIR1 (1.566 - 1.651) and SWIR2 (2.107 - 2.294) wavelength regions. The approach is robust to outliers (such as cloud, shadows, saturation, corrupted pixels) and also maintains the relationship between all the spectral wavelengths in the spectra observed through time. The product reduces the influence of vegetation and allows for more direct mapping of soil and rock mineralogy.
This product complements the Landsat-8 Barest Earth which is based on the same algorithm but just uses Landsat8 satellite imagery from 2013-2108. Landsat-8's OLI sensor provides improved signal-to-noise radiometric (SNR) performance quantised over a 12-bit dynamic range compared to the 8-bit dynamic range of Landsat-5 and Landsat-7 data. However the Landsat 30+ Barest Earth has a greater capacity to find the barest ground due to the greater temporal depth.
Reference: Roberts, D., Wilford, J., Ghattas, O. (2019). Exposed Soil and Mineral Map of the Australian Continent Revealing the Land at its Barest. Nature Communications. Mosaics are available for the following years: Landsat 5 / Landsat 7 / Landsat 8 - 1983 to 2018;
For service status information, see https://status.dea.ga.gov.au
Simple
Identification info
- Status
Point of contact
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
Extent
))
- Maintenance and update frequency
- As needed
- Keywords (Theme)
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- mangrove
- australia
- geomedian
- WOfS
- time-series
- landsat
- HLTC
- bare-earth
- burn characteristics
- NIDEM
- fractional-cover
- Keywords (Place)
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- World
Resource constraints
- Access constraints
- Other restrictions
- Other constraints
- no conditions apply
Resource constraints
- Use limitation
- no conditions apply
Resource constraints
- Use limitation
- https://creativecommons.org/licenses/by/4.0
- Access constraints
- Licence Unrestricted
- Use constraints
- Licence Unrestricted
- Language
- English
- Character encoding
- UTF8
Distribution Information
- OnLine resource
-
landsat_barest_earth
GA Barest Earth (Landsat)
Resource lineage
- Hierarchy level
- Dataset
Metadata
- Metadata identifier
- urn:uuid/da59c07a5e207dd663cbf3e8ced30fdc1657f41c
- Language
- English
- Character encoding
- anyValidURI
Point of contact
Point of contact
Type of resource
- Resource scope
- Dataset
Metadata linkage
- Function
- Complete Metadata
- Metadata linkage
- http://portal.auscope.org/geonetwork/srv/api/records/177abe2c-9efe-4fd2-a66e-0f1e099c3047
- Date info (Revision)
- 2022-10-25T02:20:38
- Date info (Creation)
- 2024-01-22T22:38:13
Metadata standard
- Title
- ISO 19115-3
Overviews
Spatial extent
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