Authors / CoAuthors
Post, A. | Baldry, K. | Mettes, J. | Bradley, A. | Mueller, N.
Abstract
Satellite data over Antarctica provides a vast resource spanning decades for observing critical changes in the cryosphere, ecosystems and oceans. However, our ability to observe Antarctica systematically at a continental scale is constrained by difficulties accessing, storing and pre-processing satellite imagery prior to analysis. Factors such as cloud masking, reflectivity, prolonged periods of darkness, changes in atmospheric water vapour, aerosols and signal scattering mean that corrections applied to satellite data in other regions and in existing global products aren’t fully applicable to Antarctic conditions. To overcome these challenges, Geoscience Australia is developing Digital Earth Antarctica. This platform will improve access to corrected continental scale satellite data through use of Open Data Cube technology, providing open access to analysis ready time-series data that has been corrected and validated for Antarctic conditions. Optical data will initially include Landsat and Sentinel-2 collections, while Sentinel-1 will be pre-processed for access to synthetic aperture radar backscatter and interferometric data. Synthetic aperture radar (SAR) data over Antarctica overcomes the challenges of sustained observing during periods of cloudiness and darkness, and in Interferometric Wide swath mode can be used to detect changes in surface topography over time (InSAR). This presentation will provide an overview of Digital Earth Antarctica’s planned processing pipelines to produce analysis ready optical and SAR data and the wealth of opportunities that will be unlocked to observe, monitor and understand Antarctic systems. Presented at the 2024 Scientific Committee on Antarctic Research (SCAR) Open Science Conference, Chile
Product Type
document
eCat Id
149275
Contact for the resource
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Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
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Point of contact
- Contact instructions
- Space Division
Keywords
- theme.ANZRC Fields of Research.rdf
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- EARTH SCIENCESPHYSICAL SCIENCESASTRONOMICAL AND SPACE SCIENCESENVIRONMENTAL SCIENCE AND MANAGEMENT
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- Published_External
Publication Date
2025-02-19T00:22:24
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Status
completed
Purpose
SCAR 2024 Conference Abstract
Maintenance Information
asNeeded
Topic Category
geoscientificInformation
Series Information
Scientific Commitee on Antarctic Research (SCAR) Open Science Conference, 19-23 August 2024, Pucon, Chile
Lineage
SCAR 2024 Conference Abstract
Parent Information
Extents
[-90.00, -50.00, -180.00, 180.00]
Reference System
Spatial Resolution
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