{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T10:41:14Z","timestamp":1776854474943,"version":"3.51.2"},"reference-count":70,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2018,9,12]],"date-time":"2018-09-12T00:00:00Z","timestamp":1536710400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004488","name":"Hrvatska Zaklada za Znanost","doi-asserted-by":"publisher","award":["IP-2014-09-3606"],"award-info":[{"award-number":["IP-2014-09-3606"]}],"id":[{"id":"10.13039\/501100004488","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000844","name":"European Space Agency","doi-asserted-by":"publisher","award":["SEOM Photosynthetically Active Radiation for Primary Production"],"award-info":[{"award-number":["SEOM Photosynthetically Active Radiation for Primary Production"]}],"id":[{"id":"10.13039\/501100000844","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000844","name":"European Space Agency","doi-asserted-by":"publisher","award":["STSE Marine Primary Production: Model Parameters from Space"],"award-info":[{"award-number":["STSE Marine Primary Production: Model Parameters from Space"]}],"id":[{"id":"10.13039\/501100000844","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000270","name":"Natural Environment Research Council","doi-asserted-by":"publisher","award":["National Centre for Earth Observation"],"award-info":[{"award-number":["National Centre for Earth Observation"]}],"id":[{"id":"10.13039\/501100000270","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000893","name":"Simons Foundation","doi-asserted-by":"publisher","award":["CBIOMES Project"],"award-info":[{"award-number":["CBIOMES Project"]}],"id":[{"id":"10.13039\/100000893","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Government of India","award":["Jawaharlal Nehru Science Fellowship"],"award-info":[{"award-number":["Jawaharlal Nehru Science Fellowship"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>In 1962, a series of in situ primary production measurements began in the Adriatic Sea, at a station near the island of Vis. To this day, over 55 years of monthly measurements through the photic zone have been accumulated, including close to 3000 production measurements at different depths. The measurements are conducted over a six-hour period around noon, and the average production rate extrapolated linearly over day length to calculate daily production. Here, a non-linear primary production model is used to correct these estimates for potential overestimation of daily production due to linear extrapolation. The assimilation numbers are recovered from the measured production profiles and subsequently used to model production at depth. Using the recovered parameters, the model explained 87% of variability in measured normalized production at depth. The model is then used to calculate daily production at depth, and it is observed to give on average 20% lower daily production at depth than the estimates based on linear extrapolation. Subsequently, water column production is calculated, and here, the model predicted on average 26% lower water column production. With the recovered parameters and the known magnitude of the overestimation, the time-series of water column production is then re-established with the non-linearly-corrected data. During this 55-year period, distinct regimes were observed, which were classified with a regime shift detection method. It is then demonstrated how the recovered parameters can be used in a remote sensing application. A seasonal cycle of the recovered assimilation number is constructed along with the seasonal cycle of remotely-sensed chlorophyll. The two are then used to model the seasonal cycle of water column production. An upper and a lower bound on the seasonal cycle of water column production based on remotely-sensed chlorophyll data are then presented. Measured water column production was found to be well within the range of remotely-sensed estimates. With this work, the utility of in situ measurements as a means of providing information on the assimilation number is presented and its application as a reference for remote sensing models highlighted.<\/jats:p>","DOI":"10.3390\/rs10091460","type":"journal-article","created":{"date-parts":[[2018,9,13]],"date-time":"2018-09-13T11:46:04Z","timestamp":1536839164000},"page":"1460","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["A 55-Year Time Series Station for Primary Production in the Adriatic Sea: Data Correction, Extraction of Photosynthesis Parameters and Regime Shifts"],"prefix":"10.3390","volume":"10","author":[{"given":"\u017darko","family":"Kova\u010d","sequence":"first","affiliation":[{"name":"Institute of Oceanography and Fisheries, \u0160etali\u0161te I. Me\u0161trovi\u0107a 63, 21000 Split, Croatia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Trevor","family":"Platt","sequence":"additional","affiliation":[{"name":"Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth PL1 3DH, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6083-7051","authenticated-orcid":false,"given":"\u017divana","family":"Nin\u010devi\u0107 Gladan","sequence":"additional","affiliation":[{"name":"Institute of Oceanography and Fisheries, \u0160etali\u0161te I. Me\u0161trovi\u0107a 63, 21000 Split, Croatia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mira","family":"Morovi\u0107","sequence":"additional","affiliation":[{"name":"Institute of Oceanography and Fisheries, \u0160etali\u0161te I. Me\u0161trovi\u0107a 63, 21000 Split, Croatia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shubha","family":"Sathyendranath","sequence":"additional","affiliation":[{"name":"Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth PL1 3DH, UK"},{"name":"National Centre for Earth Observations, Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth PL1 3DH, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6714-2180","authenticated-orcid":false,"given":"Dionysios E.","family":"Raitsos","sequence":"additional","affiliation":[{"name":"Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth PL1 3DH, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6966-142X","authenticated-orcid":false,"given":"Branka","family":"Grbec","sequence":"additional","affiliation":[{"name":"Institute of Oceanography and Fisheries, \u0160etali\u0161te I. Me\u0161trovi\u0107a 63, 21000 Split, Croatia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0392-4172","authenticated-orcid":false,"given":"Frano","family":"Mati\u0107","sequence":"additional","affiliation":[{"name":"Institute of Oceanography and Fisheries, \u0160etali\u0161te I. Me\u0161trovi\u0107a 63, 21000 Split, Croatia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jere","family":"Ve\u017ea","sequence":"additional","affiliation":[{"name":"Institute of Oceanography and Fisheries, \u0160etali\u0161te I. Me\u0161trovi\u0107a 63, 21000 Split, Croatia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2018,9,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Barber, R.T., and Hilting, A.K. (2002). History of the study of plankton productivity. 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