{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,22]],"date-time":"2026-01-22T23:26:34Z","timestamp":1769124394284,"version":"3.49.0"},"reference-count":80,"publisher":"MDPI AG","issue":"24","license":[{"start":{"date-parts":[[2023,12,13]],"date-time":"2023-12-13T00:00:00Z","timestamp":1702425600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Italian Ministry of Education, University and Research","award":["MIUR n.84\/Ric 2012"],"award-info":[{"award-number":["MIUR n.84\/Ric 2012"]}]},{"name":"Italian Ministry of Education, University and Research","award":["PON 2007-2013"],"award-info":[{"award-number":["PON 2007-2013"]}]},{"name":"Cohesion Fund 2007\u20132013 of the Basilicata Regional authority","award":["MIUR n.84\/Ric 2012"],"award-info":[{"award-number":["MIUR n.84\/Ric 2012"]}]},{"name":"Cohesion Fund 2007\u20132013 of the Basilicata Regional authority","award":["PON 2007-2013"],"award-info":[{"award-number":["PON 2007-2013"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Colored dissolved organic matter (CDOM) is a significant constituent of aquatic systems and biogeochemical cycles. Satellite CDOM retrievals are challenging in inland waters, due to overlapped absorption properties of bio-optical parameters, like Total Suspended Matter (TSM). In this framework, we defined an accurate CDOM model using Sentinel2-MSI (S2-MSI) data in Pertusillo Lake (Southern Italy) adopting a classification scheme based on satellite TSM data. Empirical relationships were established between the CDOM absorption coefficient, aCDOM (440), and reflectance band ratios using ground-based measurements. The Green-to-Red (B3\/B4 and B3\/B5) and Red-to-Blue (B4\/B2 and B5\/B2) band ratios showed good relationships (R2 \u2265 0.75), which were further improved according to sub-region division (R2 up to 0.93). The best accuracy of B3\/B4 in the match-ups between S2-MSI-derived and in situ band ratios proved the exportability on S2-MSI data of two B3\/B4-based aCDOM (440) models, namely the fixed (for the whole PL) and the switching one (according to sub-region division). Although they both exhibited good agreements in aCDOM (440) retrievals (R2 \u2265 0.69), the switching model showed the highest accuracy (RMSE of 0.0155 m\u22121). Finally, the identification of areas exposed to different TSM patterns can assist with refining the calibration\/validation procedures to achieve more accurate aCDOM (440) retrievals.<\/jats:p>","DOI":"10.3390\/rs15245718","type":"journal-article","created":{"date-parts":[[2023,12,13]],"date-time":"2023-12-13T08:55:16Z","timestamp":1702457716000},"page":"5718","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Improving Colored Dissolved Organic Matter (CDOM) Retrievals by Sentinel2-MSI Data through a Total Suspended Matter (TSM)-Driven Classification: The Case of Pertusillo Lake (Southern Italy)"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0335-2565","authenticated-orcid":false,"given":"Emanuele","family":"Ciancia","sequence":"first","affiliation":[{"name":"Institute of Methodologies for Environmental Analysis-National Research Council (CNR-IMAA), C.da Santa Loja, Tito Scalo, 85050 Potenza, Italy"},{"name":"Space Technologies and Applications Centre (STAC), 85100 Potenza, Italy"}]},{"given":"Alessandra","family":"Campanelli","sequence":"additional","affiliation":[{"name":"Institute for Biological Resources and Marine Biotechnologies-National Research Council (CNR-IRBIM), L.go Fiera della Pesca, 2, 60125 Ancona, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2348-8187","authenticated-orcid":false,"given":"Roberto","family":"Colonna","sequence":"additional","affiliation":[{"name":"Space Technologies and Applications Centre (STAC), 85100 Potenza, Italy"},{"name":"School of Engineering, University of Basilicata, Via dell\u2019Ateneo Lucano 10, 85100 Potenza, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1746-0057","authenticated-orcid":false,"given":"Angelo","family":"Palombo","sequence":"additional","affiliation":[{"name":"Institute of Methodologies for Environmental Analysis-National Research Council (CNR-IMAA), C.da Santa Loja, Tito Scalo, 85050 Potenza, Italy"}]},{"given":"Simone","family":"Pascucci","sequence":"additional","affiliation":[{"name":"Institute of Methodologies for Environmental Analysis-National Research Council (CNR-IMAA), C.da Santa Loja, Tito Scalo, 85050 Potenza, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0587-8926","authenticated-orcid":false,"given":"Stefano","family":"Pignatti","sequence":"additional","affiliation":[{"name":"Institute of Methodologies for Environmental Analysis-National Research Council (CNR-IMAA), C.da Santa Loja, Tito Scalo, 85050 Potenza, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7619-6685","authenticated-orcid":false,"given":"Nicola","family":"Pergola","sequence":"additional","affiliation":[{"name":"Institute of Methodologies for Environmental Analysis-National Research Council (CNR-IMAA), C.da Santa Loja, Tito Scalo, 85050 Potenza, Italy"},{"name":"Space Technologies and Applications Centre (STAC), 85100 Potenza, Italy"}]}],"member":"1968","published-online":{"date-parts":[[2023,12,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"405","DOI":"10.1038\/371405a0","article-title":"Annual flux of dissolved organic carbon from the euphotic zone in the northwestern Sargasso Sea","volume":"371","author":"Carlson","year":"1994","journal-title":"Nature"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"506","DOI":"10.1038\/nature08179","article-title":"Light limitation of nutrient-poor lake ecosystems","volume":"460","author":"Karlsson","year":"2009","journal-title":"Nature"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"982","DOI":"10.1002\/ecy.1758","article-title":"Phytoplankton response to whole lake inorganic N fertilization along a gradient in dissolved organic carbon","volume":"98","author":"Deininger","year":"2017","journal-title":"Ecology"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"912","DOI":"10.4319\/lo.1996.41.5.0912","article-title":"Effects of lake size, water clarity, and climatic variability on mixing depths in Canadian Shield lakes","volume":"41","author":"Fee","year":"1996","journal-title":"Limnol. 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