Product catalogue
Synthetic Aperture Radar (SAR) processing workflow - a software component of the Geoscience Australia InSAR project
<div>The aim of the Interferometric Synthetic Aperture Radar (InSAR) project is to develop an end-to-end, fully automated InSAR processing system that will take raw SAR data from any sensor and produce time-series maps of surface deformation/movement.</div><div>Surface deformation maps are important products to help define the national geodetic reference frame by augmenting the geodetic data obtained from sparse ground networks, in addition to identifying regions with elevated natural hazard risk.</div>
Simple
Identification info
- Date (Creation)
- 2021-01-28
- Date (Publication)
- 2023-10-09T23:37:42
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/148828
- Citation identifier
- Digital Object Identifier/https://dx.doi.org/10.26186/148828
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice Author Roberts, D.
External Contact Author Wheeler, M.
External Contact Author Passang, D.
External Contact Author Davies, B.
External Contact Author Garthwaite, M.
External Contact Author Lawrie, S.
External Contact Author Fuhrmann, T.
External Contact Author Garcia, R.
External Contact Author Vincent, A.
External Contact Author Hooke, J.
External Contact Author Moghaddam, N.
External Contact Author Sixsmith, J.
Internal Contact
- Purpose
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Geoscience Australia GitHub repository houses the "ga_sar_workflow" ( https://github.com/GeoscienceAustralia/ga_sar_workflow) which provides the tools to process Sentinel-1 SLC data into Analysis Ready Data (ARD) using the GAMMA software, specifically ARD products for georeferenced backscatter and interferograms. This software is intended to be generic and reusable, however... it should be noted to adopters that this software at the time of writing has only been used by Geoscience Australia on specific Sentinel-1, RADARSAT-2, and ALOS datasets - as such there are certain assumptions still being made in some areas of the code with respect to things like GAMMA program settings being hard-coded in some cases.
- Status
- Completed
- Point of contact
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Role Organisation / Individual Name Details Resource provider Space Division
External Contact Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Harrison, C.
Space Division Internal Contact
- Spatial representation type
- Topic category
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- Geoscientific information
Extent
))
Temporal extent
- Time period
- 2021-01-26 2023-09-08
- Maintenance and update frequency
- Irregular
Resource format
- Title
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Product data repository: Various Formats
- Website
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Data Store directory containing the digital product files
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
- Project
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Positioning Australia
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- Project
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AuScope
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- Keywords
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geodesy
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- Keywords
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remote sensing
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- Keywords
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SAR
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- Keywords
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InSAR
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- Keywords
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surface deformation
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- theme.ANZRC Fields of Research.rdf
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Geodesy
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- Keywords
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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
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4.0
- Addressee
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Role Organisation / Individual Name Details User Any
- Use constraints
- License
- Use constraints
- Other restrictions
- Other constraints
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© Commonwealth of Australia (Geoscience Australia) 2023
Resource constraints
- Title
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Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Classification system
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Australian Government Security Classification System
- 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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Link to GitHub Repository
Link to GitHub Repository
- Distribution format
-
Resource lineage
- Statement
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<div><strong><em>A lineage of releases may be viewed here: https://github.com/GeoscienceAustralia/ga_sar_workflow/releases</em></strong></div><div><strong>Prior Year 2021</strong>: processing of SAR data using GAMMA with bash scripts and a python prototype (incomplete) started [Fuhrmann, Garthwaite, Lawrie, Moghaddam*]. </div><div> <strong>Year 2021:</strong> Rewrite of bash scripts into a python workflow [Davies, Dorji, Garcia, Fuhrmann, Garthwaite, Hooke, Sixsmith, Vincent*]. Advances in interferometry quality (surpass previous outputs). Numerous production quality improvements (usability, logging, validation, algorithmic robustness, etc.). Increases to reliability and robustness of data outputs. CARD4L compliance for SAR products & STAC metadata. Five plus years of InSAR data produced (2016-2021) totalling over 100TB (successfully used by InSAR team to deliver NSW Project when processed using PyRate - see paper released in July 2023 below). Added RADARSAT-2, ALOS PALSAR 1 & 2 support to the workflow. </div><div> <strong>Year 2022:</strong> Further development of python code [Wheeler]. Add TSX/TDX satellite support to workflow, huge effort to raise code quality for long development stability/feasibility, user-facing usability improvements, documentation (technical and user interface). Add support for appending new data to stacks to support future operational ARD (analysis ready data) processing. Removed dependency on NCI. Add infrastructure for ongoing upgrades. </div><div> <strong>Year 2023 (March-July):</strong> Further development of python code [Roberts]. Rewrote the GAMMA wrapper to introduce type information and support for GAMMA 20221129. Introduced type checking of code and various fixes. Fix logging issues, hang-ups, calls, constant types etc. Tackled several open GitHub issues. Fixes to documentation and naming [McIntyre]. </div><div> * Contributors listed alphabetically. </div><div><strong> Publications </strong></div><div><strong> </strong>Z. Du et al., "Toward a Wide-Scale Land Subsidence Product in Eastern States of Australia," in IEEE Transactions on Geoscience and Remote Sensing, vol. 61, pp. 1-12, 2023</div>
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
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urn:uuid/c58940c5-f08e-4dda-9dfe-8f6366de9301
- 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 Harrison, C.
Space Division Internal Contact
Type of resource
- Resource scope
- Software
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/148828
- Date info (Creation)
- 2023-10-09T23:15:36
- Date info (Revision)
- 2023-10-09T23:15:36
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
- http://pid.geoscience.gov.au/dataset/ga/122551