{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,2]],"date-time":"2026-04-02T18:51:48Z","timestamp":1775155908530,"version":"3.50.1"},"reference-count":46,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2016,1,7]],"date-time":"2016-01-07T00:00:00Z","timestamp":1452124800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Spatial and temporal dynamics of phytoplankton biomass and water turbidity can provide crucial information about the function, health and vulnerability of lagoon ecosystems (coral reefs, sea grasses, etc.). A statistical algorithm is proposed to estimate chlorophyll-a concentration ([chl-a]) in optically complex waters of the New Caledonian lagoon from MODIS-derived \u201cremote-sensing\u201d reflectance (Rrs). The algorithm is developed via supervised learning on match-ups gathered from 2002 to 2010. The best performance is obtained by combining two models, selected according to the ratio of Rrs in spectral bands centered on 488 and 555 nm: a log-linear model for low [chl-a] (AFLC) and a support vector machine (SVM) model or a classic model (OC3) for high [chl-a]. The log-linear model is developed based on SVM regression analysis. This approach outperforms the classical OC3 approach, especially in shallow waters, with a root mean squared error 30% lower. The proposed algorithm enables more accurate assessments of [chl-a] and its variability in this typical oligo- to meso-trophic tropical lagoon, from shallow coastal waters and nearby reefs to deeper waters and in the open ocean.<\/jats:p>","DOI":"10.3390\/rs8010045","type":"journal-article","created":{"date-parts":[[2016,1,7]],"date-time":"2016-01-07T11:11:51Z","timestamp":1452165111000},"page":"45","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["A Statistical Algorithm for Estimating Chlorophyll Concentration in the New Caledonian Lagoon"],"prefix":"10.3390","volume":"8","author":[{"given":"Guillaume","family":"Wattelez","sequence":"first","affiliation":[{"name":"Sciences and Technologies Department, University of New Caledonia, Nouville Campus BP R4, Noum\u00e9a CEDEX 98851, New Caledonia"},{"name":"Aix-Marseille University, CNRS\/INSU, University of Toulon, IRD, Mediterranean Institute of Oceanography (MIO), UM 110, Marseille 13288, France"},{"name":"Institut de Recherche Pour le D\u00e9veloppement (IRD), BP A5 98848 Noum\u00e9a CEDEX 98848, New Caledonia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2246-918X","authenticated-orcid":false,"given":"C\u00e9cile","family":"Dupouy","sequence":"additional","affiliation":[{"name":"Aix-Marseille University, CNRS\/INSU, University of Toulon, IRD, Mediterranean Institute of Oceanography (MIO), UM 110, Marseille 13288, France"},{"name":"Institut de Recherche Pour le D\u00e9veloppement (IRD), BP A5 98848 Noum\u00e9a CEDEX 98848, New Caledonia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4146-3784","authenticated-orcid":false,"given":"Morgan","family":"Mangeas","sequence":"additional","affiliation":[{"name":"Institut de Recherche Pour le D\u00e9veloppement (IRD), BP A5 98848 Noum\u00e9a CEDEX 98848, New Caledonia"},{"name":"University of Montpellier II, University of Reunion, University of French West Indies, University of French Guiana, IRD, ESPACE-DEV UMR 228, Montpellier 34093, France"}]},{"given":"J\u00e9r\u00f4me","family":"Lef\u00e8vre","sequence":"additional","affiliation":[{"name":"Institut de Recherche Pour le D\u00e9veloppement (IRD), BP A5 98848 Noum\u00e9a CEDEX 98848, New Caledonia"},{"name":"LEGOS, University of Toulouse CNES, CNRS, IRD, UPS, Toulouse 31401, France"}]},{"family":"Touraivane","sequence":"additional","affiliation":[{"name":"Sciences and Technologies Department, University of New Caledonia, Nouville Campus BP R4, Noum\u00e9a CEDEX 98851, New Caledonia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4770-389X","authenticated-orcid":false,"given":"Robert","family":"Frouin","sequence":"additional","affiliation":[{"name":"Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92037, USA"}]}],"member":"1968","published-online":{"date-parts":[[2016,1,7]]},"reference":[{"key":"ref_1","unstructured":"Sheppard, C.R.C. 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