Surface Reflectance and Aerosol Retrieval from SPOT-VGT and PROBA-V in the Mission Exploitation Platform Environment
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Published:2023-10-25
Issue:21
Volume:15
Page:5109
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ISSN:2072-4292
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Container-title:Remote Sensing
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language:en
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Short-container-title:Remote Sensing
Author:
Luffarelli Marta1ORCID, Franceschini Lucio1, Govaerts Yves1ORCID, Niro Fabrizio23, De Grandis Erminia4
Affiliation:
1. Rayference, 1000 Brussels, Belgium 2. ESA/ESRIN, 00044 Frascati, Italy 3. SERCO, 00044 Frascati, Italy 4. AlmavivA S.p.A, 00159 Rome, Italy
Abstract
Observations acquired by the SPOT-VEGETATION and PROBA-V missions offer a unique opportunity to improve our understanding of the climate, providing global and continuous data over the land surface over 20 years. The possibility of generating a long-term climate data record from the entire archive, stored on the Mission Exploitation Platform (MEP), is here explored. For this purpose, in the framework of the ESA-funded SPAR@MEP project, the Combined Inversion of Surface and Aerosols (CISAR) algorithm has been applied to the SPOT-VGT and PROBA-V archive, following the harmonization of the observations according to the Fidelity and Uncertainty in Climate data records from Earth Observations (FIDUCEO) principles. CISAR has been applied to the full 20-year harmonized archive over key areas, as well as to one year of global acquisition from PROBA-V, processed at 5 km resolution, to derive aerosol single-scattering properties and surface reflectance. The retrieval is evaluated in terms of consistency among the three sensors and against reference datasets, including ground-based observations, models, and other sensor products. This activity has revealed the importance of characterizing the radiometric uncertainty for every processed pixel.
Funder
ESA Project SPAR@MEP
Subject
General Earth and Planetary Sciences
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