Comparison of ocean-colour algorithms for particulate organic carbon in global ocean
dc.contributor.author | Kong, CE | |
dc.contributor.author | Sathyendranath, S | |
dc.contributor.author | Jackson, T | |
dc.contributor.author | Stramski, D | |
dc.contributor.author | Brewin, RJW | |
dc.contributor.author | Kulk, G | |
dc.contributor.author | Jönsson, BF | |
dc.contributor.author | Loisel, H | |
dc.contributor.author | Galí, M | |
dc.contributor.author | Le, C | |
dc.date.accessioned | 2024-05-03T09:19:30Z | |
dc.date.issued | 2024-04-24 | |
dc.date.updated | 2024-04-25T15:43:47Z | |
dc.description.abstract | In the oceanic surface layer, particulate organic carbon (POC) constitutes the biggest pool of particulate material of biological origin, encompassing phytoplankton, zooplankton, bacteria, and organic detritus. POC is of general interest in studies of biologically-mediated fluxes of carbon in the ocean, and over the years, several empirical algorithms have been proposed to retrieve POC concentrations from satellite products. These algorithms can be categorised into those that make use of remote-sensing-reflectance data directly, and those that are dependent on chlorophyll concentration and particle backscattering coefficient derived from reflectance values. In this study, a global database of in situ measurements of POC is assembled, against which these different types of algorithms are tested using daily matchup data extracted from the Ocean Colour Climate Change Initiative (OC-CCI; version 5). Through analyses of residuals, pixel-by-pixel uncertainties, and validation based on optical water types, areas for POC algorithm improvement are identified, particularly in regions underrepresented in the in situ POC data sets, such as coastal and high-latitude waters. We conclude that POC algorithms have reached a state of maturity and further improvements can be sought in blending algorithms for different optical water types when the required in situ data becomes available. The best performing band ratio algorithm was tuned to the OC-CCI version 5 product and used to produce a global time series of POC between 1997–2020 that is freely available. | en_GB |
dc.description.sponsorship | European Space Agency | en_GB |
dc.description.sponsorship | Simons Collaboration on Computational Biogeochemical Modeling of Marine Ecosystems (CBIOMES) | en_GB |
dc.description.sponsorship | National Centre for Earth Observations (NCEO) | en_GB |
dc.description.sponsorship | OPERA project | en_GB |
dc.identifier.citation | Vol. 11, article 1309050 | en_GB |
dc.identifier.doi | https://doi.org/10.3389/fmars.2024.1309050 | |
dc.identifier.grantnumber | 549947 | en_GB |
dc.identifier.grantnumber | PID2019-107952GA-I00 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/135839 | |
dc.identifier | ORCID: 0000-0001-5134-8291 (Brewin, Robert JW) | |
dc.identifier | ScopusID: 35725269400 (Brewin, Robert JW) | |
dc.language.iso | en | en_GB |
dc.publisher | Frontiers Media | en_GB |
dc.rights | © 2024 Kong, Sathyendranath, Jackson, Stramski, Brewin, Kulk, Jönsson, Loisel, Galí and Le. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. | en_GB |
dc.subject | particulate organic carbon | en_GB |
dc.subject | ocean carbon cycle | en_GB |
dc.subject | biological carbon pump | en_GB |
dc.subject | essential climate variable | en_GB |
dc.subject | ocean colour remote sensing | en_GB |
dc.subject | ocean colour climate change initiative | en_GB |
dc.title | Comparison of ocean-colour algorithms for particulate organic carbon in global ocean | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2024-05-03T09:19:30Z | |
dc.description | This is the final version. Available on open access from Frontiers Media via the DOI in this record | en_GB |
dc.description | Data availability statement: The data sets presented in this study can be found in online repositories. The names of the repository/repositories and accession number(s) can be found at https://www.bicep-project.org/Deliverables | en_GB |
dc.identifier.eissn | 2296-7745 | |
dc.identifier.journal | Frontiers in Marine Science | en_GB |
dc.relation.ispartof | Frontiers in Marine Science, 11 | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2024-01-18 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2024-04-24 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2024-05-03T09:16:36Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2024-05-03T09:19:39Z | |
refterms.panel | C | en_GB |
refterms.dateFirstOnline | 2024-04-24 |
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Except where otherwise noted, this item's licence is described as © 2024 Kong, Sathyendranath, Jackson, Stramski, Brewin, Kulk, Jönsson, Loisel, Galí and Le. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.