{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,6]],"date-time":"2026-03-06T05:12:54Z","timestamp":1772773974613,"version":"3.50.1"},"reference-count":62,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2021,3,9]],"date-time":"2021-03-09T00:00:00Z","timestamp":1615248000000},"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>Northern Patagonia is one of the largest estuarine systems worldwide. It is characterized by complex geography, including islands, peninsulas, channels, and fjords. Here, the Inner Sea of Chilo\u00e9 (ISC) is the largest estuarine system extending about 230 km in the meridional direction. Phytoplankton\u2019s long-term dynamics and the main physical drivers of their variability are not well understood yet. Time-space fluctuations of Chlorophyll-a (Chl-a) and Chlorophyll fluorescence (nFLH) within the ISC and their association with meteorological and oceanographic processes were analyzed using high resolution (1000 m) satellite data (2003\u20132019). Our results revealed a meridional Chl-a and nFLH gradient along the ISC, with higher concentrations north of the Desertores islands where the topography promotes a semi-closed system with estuarine characteristics yearlong. Satellite Chl-a and nFLH were characterized by asynchronous seasonal cycles (nFLH peaks in fall) that differed from the southern ISC where the maximum Chl-a and nFLH occurs in spring-summer. The adjacent coastal ocean influences the southern ISC, and thus, the Chl-a and nFLH variability correlated well with the seasonal variation of meridional winds. The northern ISC was clearly influenced by river discharges, which can bias the Chl-a retrievals, decoupling the annual cycles of Chl-a and nFLH. In situ data from a buoy in Seno Reloncav\u00ed reaffirmed this bias in satellite Chl-a and a higher correlation with nFLH, by which the construction of a local Chl-a algorithm for northern Patagonia is essential.<\/jats:p>","DOI":"10.3390\/rs13051026","type":"journal-article","created":{"date-parts":[[2021,3,9]],"date-time":"2021-03-09T04:33:51Z","timestamp":1615264431000},"page":"1026","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Meridional Changes in Satellite Chlorophyll and Fluorescence in Optically-Complex Coastal Waters of Northern Patagonia"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7857-677X","authenticated-orcid":false,"given":"Sebasti\u00e1n I.","family":"V\u00e1squez","sequence":"first","affiliation":[{"name":"Departamento de Pesquer\u00edas, Instituto de Investigaci\u00f3n Pesquera, Talcahuano 4260000, Chile"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2125-7764","authenticated-orcid":false,"given":"Mar\u00eda Bel\u00e9n","family":"de la Torre","sequence":"additional","affiliation":[{"name":"Departamento de Geof\u00edsica, Universidad de Concepci\u00f3n, Concepci\u00f3n 4070386, Chile"},{"name":"Centro de Ciencia del Clima y la Resiliencia, Universidad de Concepci\u00f3n, Concepci\u00f3n 4070386, Chile"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3462-464X","authenticated-orcid":false,"given":"Gonzalo S.","family":"Sald\u00edas","sequence":"additional","affiliation":[{"name":"Departamento de F\u00edsica, Facultad de Ciencias, Universidad del B\u00edo-B\u00edo, Concepci\u00f3n 4051381, Chile"},{"name":"Centro FONDAP de Investigaci\u00f3n en Din\u00e1mica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia 5090000, Chile"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2598-5147","authenticated-orcid":false,"given":"Aldo","family":"Montecinos","sequence":"additional","affiliation":[{"name":"Departamento de Geof\u00edsica, Universidad de Concepci\u00f3n, Concepci\u00f3n 4070386, Chile"}]}],"member":"1968","published-online":{"date-parts":[[2021,3,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Colella, S., Falcini, F., Rinaldi, E., Sammartino, M., and Santoleri, R. 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