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Continental scale validation of analysis ready data in Australia: experience with satellite derived surface reflectance

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Created 20/01/2025

Updated 20/01/2025

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Analysis Ready Data (ARD) are satellite data that have been pre-processed for immediate analysis with minimal user effort. The generation of Surface Reflectance (SR) from optical satellite data, involves a series of corrections to standardise the data and enable meaningful comparison of data from multiple sensors and across time. Surface reflectance data are foundational for time-series analyses and rapid generation of other information products. Field based validation of surface reflectance data is therefore critical to determine its fitness for purpose, and applicability for downstream product development. In this paper, an approach for continental scale validation of the surface reflectance data from Landsat-8 and Sentinel-2 satellites, using field-based measurements that are near-synchronous to the satellite observations over multiple sites across Australia is presented. Good practice measurement protocols governing the acquisition of field data, including field instrument calibration, sampling strategy and approach for post-collection processing and management of field spectral data are outlined. This study has been a nationally coordinated, collaborative field data collection campaign across Australia. Permanent field sites, to support validation efforts within the broader Earth Observation (EO) community for continental scale products were also identified. The approach is expected to serve as a model for coordinated ongoing validation of ARD products at continental to global scales. Presented at the 2019 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)

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Title Continental scale validation of analysis ready data in Australia: experience with satellite derived surface reflectance
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/a5b3520a-185a-4449-92fc-08e0f5bd1254
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 08/04/2019
Geospatial Coverage {"type": "Polygon", "coordinates": [[[112.92, -54.75], [159.11, -54.75], [159.11, -9.2402], [112.92, -9.2402], [112.92, -54.75]]]}
Data Portal data.gov.au

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This dataset was originally found on data.gov.au "Continental scale validation of analysis ready data in Australia: experience with satellite derived surface reflectance". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/continental-scale-validation-of-analysis-ready-data-in-australia-experience-with-satellite-deri

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