{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T02:36:45Z","timestamp":1760150205639,"version":"build-2065373602"},"reference-count":39,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2023,10,25]],"date-time":"2023-10-25T00:00:00Z","timestamp":1698192000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"ESA Project SPAR@MEP","award":["4000128001\/19\/I-NS"],"award-info":[{"award-number":["4000128001\/19\/I-NS"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>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.<\/jats:p>","DOI":"10.3390\/rs15215109","type":"journal-article","created":{"date-parts":[[2023,10,26]],"date-time":"2023-10-26T02:40:07Z","timestamp":1698288007000},"page":"5109","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Surface Reflectance and Aerosol Retrieval from SPOT-VGT and PROBA-V in the Mission Exploitation Platform Environment"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0374-4817","authenticated-orcid":false,"given":"Marta","family":"Luffarelli","sequence":"first","affiliation":[{"name":"Rayference, 1000 Brussels, Belgium"}]},{"given":"Lucio","family":"Franceschini","sequence":"additional","affiliation":[{"name":"Rayference, 1000 Brussels, Belgium"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9476-9595","authenticated-orcid":false,"given":"Yves","family":"Govaerts","sequence":"additional","affiliation":[{"name":"Rayference, 1000 Brussels, Belgium"}]},{"given":"Fabrizio","family":"Niro","sequence":"additional","affiliation":[{"name":"ESA\/ESRIN, 00044 Frascati, Italy"},{"name":"SERCO, 00044 Frascati, Italy"}]},{"given":"Erminia","family":"De Grandis","sequence":"additional","affiliation":[{"name":"AlmavivA S.p.A, 00159 Rome, Italy"}]}],"member":"1968","published-online":{"date-parts":[[2023,10,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Merchant, C.J., Embury, O., Rayner, N.A., Berry, D.I., Corlett, G.K., Lean, K., Veal, K.L., Kent, E.C., Llewellyn-Jones, D.T., and Remedios, J.J. 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