Product catalogue
Digital Earth Australia Analysis Ready and Derivative Data Collection
Analysis Ready Data (ARD) takes medium resolution satellite imagery captured over the Australian continent and corrects for inconsistencies across land and coastal fringes. The result is accurate and standardised surface reflectance data, which is instrumental in identifying and quantifying environmental change. This product is a single, cohesive ARD package, which allows you to analyse surface reflectance data as is, without the need to apply additional corrections.
ARD consists of sub products, including :
1) NBAR Surface Reflectance which produces standardised optical surface reflectance data using robust physical models which correct for variations and inconsistencies in image radiance values. Corrections are performed using Nadir corrected Bi-directional reflectance distribution function Adjusted Reflectance (NBAR).
2) NBART Surface Reflectance which performs the same function as NBAR Surface Reflectance, but also applies terrain illumination correction.
3) OA Observation Attributes product which provides accurate and reliable contextual information about the data. This 'data provenance' provides a chain of information which allows the data to be replicated or utilised by derivative applications. It takes a number of different forms, including satellite, solar and surface geometry and classification attribution labels.
ARD enables generation of Derivative Data and information products that represent biophysical parameters, either summarised as statistics, or as observations, which underpin an understanding of environmental dynamics. The development of derivative products to monitor land, inland waterways and coastal features, such as:
- urban growth
- coastal habitats
- mining activities
- agricultural activity (e.g. pastoral, irrigated cropping, rain-fed cropping)
- water extent
Derivative products include:
- Water Observations from Space (WOfS)
- National Intertidal Digital Elevation Model (NIDEM)
- Fractional Cover (FC)
- Geomedian
ARD and Derivative products are reproduced through a period collection upgrade process for each sensor platform. This process applied improvements to the algorithms and techniques and benefits from improvements applied to the baseline data that feeds into the ARD production processes.
<b>Value: </b>These data are used to understand distributions of and changes in surface character, environmental systems, land use.
<b>Scope: </b>Australian mainland and some part of adjacent nations.
Access data via the DEA web page - <a href=" https://www.dea.ga.gov.au/products/baseline-data">https://www.dea.ga.gov.au/products/baseline-data</a>
Simple
Identification info
- Date (Creation)
- 2021-01-07
- Date (Publication)
- 2021-10-27T05:13:17
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/144688
Identifier
- Codespace
-
Digital Object Identifier
- Cited responsible party
-
Role Organisation / Individual Name Details Author Commonwealth of Australia (Geoscience Australia)
Voice
- Purpose
-
These data are used to understand distributions of and changes in surface character, environmental systems, land use.
- Status
- On going
- Point of contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Resource provider Space Division
External Contact Point of contact Pound, S.
Space Division Internal Contact
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
))
- Maintenance and update frequency
- Annually
Resource format
- Title
-
Product data repository: Various Formats
- Protocol
-
FILE:DATA-DIRECTORY
- Name of the resource
-
Data Store directory containing the digital product files
- Description
-
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
-
-
EARTH SCIENCES
-
- {1}
-
-
HVC_144688
-
- {1}
-
-
HVC - High Value Collection
-
- {1}
-
-
DC2020
-
- {1}
-
-
NCI
-
- {1}
-
-
Satellite
-
- {1}
-
-
Surface Reflectance
-
- {1}
-
-
WofS
-
- {1}
-
-
NIDEM
-
- {1}
-
-
Landsat
-
- {1}
-
-
Sentinel
-
- {1}
-
-
Hotspots
-
- {1}
-
-
DEA
-
- {1}
-
-
Digital Earth Australia
-
- {1}
-
-
Published_External
-
Resource constraints
- Title
-
Creative Commons Attribution 4.0 International Licence
- Alternate title
-
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
Associated resource
- Association Type
- Was derived from
- Title
-
Digital Earth Australia Landsat Data Collection
- Citation identifier
- 144643
- Citation identifier
- f0864320-ccbc-49d0-b0a4-339e09896ca0
- Language
- English
- Character encoding
- UTF8
Resource lineage
- Statement
-
<b>Source: </b>Computed by Geoscience Australia (GA) staff using data from the US Geological Survey's Landsat program, the Copernicus program and it’s range of Sentinel satellites (1,2 and 3), as well as NASA’s Terra and Aqua missions.<br />
<br />
<b>Form: </b>NetCDF4, GeoTIFF <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
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/e4445167-fef1-46a9-b706-d83ff7b5b971
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Pound, S.
Space Division Internal Contact
Type of resource
- Resource scope
- Collection
- Name
-
Geoscience Australia (GA) High Value Collection
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/144688
- Date info (Creation)
- 2021-01-06T22:40:52
- Date info (Revision)
- 2021-01-06T22:40:52
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