Authors / CoAuthors
Thankappan, M. | Byrne, G. | Walsh, A. | Li, F. | Malthus, T. | Ong, C. | Lau, I.
Abstract
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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document
eCat Id
129383
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Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
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- Contact instructions
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Keywords
- theme.ANZRC Fields of Research.rdf
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- EARTH SCIENCES
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- analysis ready data - ARD
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- surface reflectance - SR
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- validation
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- Digital Earth Australia - DEA
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- Published_External
Publication Date
2024-04-29T05:24:09
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completed
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Publication for the IEEE Geoscience and Remote Sensing Conference 2019
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asNeeded
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geoscientificInformation
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International Geoscience and Remote Sensing Symposium (IGARSS) 28 July - 2 August 2019, Yokohama Japan
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Publication for the IEEE Geoscience and Remote Sensing Conference 2019
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[-54.75, -9.2402, 112.92, 159.11]
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