{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,9]],"date-time":"2026-01-09T00:22:24Z","timestamp":1767918144055,"version":"3.49.0"},"reference-count":83,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2023,1,20]],"date-time":"2023-01-20T00:00:00Z","timestamp":1674172800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Russian Science Foundation","award":["22-27-00790"],"award-info":[{"award-number":["22-27-00790"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Climate affects the characteristics of the Southern Ocean ecosystem, including bio-optical properties. Remote sensing is a suitable approach for monitoring a rapidly changing ecosystem. Correct remote assessment can be implemented based on a regional satellite algorithm, which requires parameterization of light absorption by all optically active components. The aim of this study is to analyse variability in total chlorophyll a concentration (TChl-a), light absorption by phytoplankton, non-algal particles (NAP), coloured dissolved organic matter (CDOM), and coloured detrital matter (CDM = CDOM+NAP), to parameterize absorption by all components. Bio-optical properties were measured in the austral summer of 2020 according to NASA Protocols (2018). High variability (1\u20132 orders of magnitude) in TChl-a, absorption of phytoplankton, NAP, CDOM, and CDM was revealed. High variability in both CDOM absorption (uncorrelated with TChl-a) and CDOM share in total non-water absorption, resulting in a shift from phytoplankton to CDOM dominance, caused approximately twofold chlorophyll underestimation by global bio-optical algorithms. The light absorption of phytoplankton (for the visible domain in 1 nm steps), NAP, CDOM, and CDM were parametrized. Relationships between the spectral slope coefficient (SCDOM\/SCDM) and CDOM (CDM) absorption were revealed. These results can be useful for the development of regional algorithms for Chl-a, CDM, and CDOM monitoring in the Southern Ocean.<\/jats:p>","DOI":"10.3390\/rs15030634","type":"journal-article","created":{"date-parts":[[2023,1,23]],"date-time":"2023-01-23T04:19:22Z","timestamp":1674447562000},"page":"634","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Parameterization of Light Absorption of Phytoplankton, Non-Algal Particles and Coloured Dissolved Organic Matter in the Atlantic Region of the Southern Ocean (Austral Summer of 2020)"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0045-7284","authenticated-orcid":false,"given":"Tatiana","family":"Churilova","sequence":"first","affiliation":[{"name":"A.O. Kovalevsky Institute of Biology of the Southern Seas of the Russian Academy of Science, 299011 Sevastopol, Russia"}]},{"given":"Natalia","family":"Moiseeva","sequence":"additional","affiliation":[{"name":"A.O. Kovalevsky Institute of Biology of the Southern Seas of the Russian Academy of Science, 299011 Sevastopol, Russia"}]},{"given":"Elena","family":"Skorokhod","sequence":"additional","affiliation":[{"name":"A.O. Kovalevsky Institute of Biology of the Southern Seas of the Russian Academy of Science, 299011 Sevastopol, Russia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3908-4160","authenticated-orcid":false,"given":"Tatiana","family":"Efimova","sequence":"additional","affiliation":[{"name":"A.O. Kovalevsky Institute of Biology of the Southern Seas of the Russian Academy of Science, 299011 Sevastopol, Russia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1853-4671","authenticated-orcid":false,"given":"Anatoly","family":"Buchelnikov","sequence":"additional","affiliation":[{"name":"A.O. Kovalevsky Institute of Biology of the Southern Seas of the Russian Academy of Science, 299011 Sevastopol, Russia"},{"name":"Laboratory of Molecular and Cellular Biophysics, Sevastopol State University, 299053 Sevastopol, Russia"}]},{"given":"Vladimir","family":"Artemiev","sequence":"additional","affiliation":[{"name":"Shirshov Institute of Oceanology, Russian Academy of Sciences, 117997 Moscow, Russia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3224-710X","authenticated-orcid":false,"given":"Pavel","family":"Salyuk","sequence":"additional","affiliation":[{"name":"V.I. Ilichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Science, 690041 Vladivostok, Russia"}]}],"member":"1968","published-online":{"date-parts":[[2023,1,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"4","DOI":"10.1016\/j.dsr2.2018.05.006","article-title":"Northern Antarctic Peninsula: A marine climate hotspot of rapid changes on ecosystems and ocean dynamic","volume":"149","author":"Kerr","year":"2018","journal-title":"Deep Sea Res. Part II Top. Stud. Oceanogr."},{"key":"ref_2","unstructured":"CCAMLR (2018). Statistical Bulletin, Commission for the Conservation of Antarctic Marine Living Resources."},{"key":"ref_3","unstructured":"FAO (2018). 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