Radiative transfer modeling with BGC-Argo float data in the Mediterranean Sea

A radiative transfer model was parameterized and validated using Biogeochemical Argo float data acquired between 2012 and 2017 across the Mediterranean Sea. Fluorescence-derived chlorophyll urn:x-wiley:21699275:media:jgrc24745:jgrc24745-math-0001 concentration, particulate optical backscattering at...

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Autores: Terzic, Elena, Miró Jané, Arnau|||0000-0002-2772-6050, Organelli, Emanuele, Kowalczuk, Piotr, D'Ortenzio, Fabrizio, Lazzari, Paolo
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/355656
Acceso en línea:https://hdl.handle.net/2117/355656
https://dx.doi.org/10.1029/2021JC017690
Access Level:acceso abierto
Palabra clave:Mediterranean Sea
Radiative transfer
Light--Scattering
Marine biology
Mediterrània, Mar
Transferència radiativa
Llum -- Difusió
Biologia marina
Àrees temàtiques de la UPC::Física
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spelling Radiative transfer modeling with BGC-Argo float data in the Mediterranean SeaTerzic, ElenaMiró Jané, Arnau|||0000-0002-2772-6050Organelli, EmanueleKowalczuk, PiotrD'Ortenzio, FabrizioLazzari, PaoloMediterranean SeaRadiative transferLight--ScatteringMarine biologyMediterrània, MarTransferència radiativaLlum -- DifusióBiologia marinaÀrees temàtiques de la UPC::FísicaA radiative transfer model was parameterized and validated using Biogeochemical Argo float data acquired between 2012 and 2017 across the Mediterranean Sea. Fluorescence-derived chlorophyll urn:x-wiley:21699275:media:jgrc24745:jgrc24745-math-0001 concentration, particulate optical backscattering at 700 nm, and fluorescence of chromophoric dissolved organic matter (CDOM) were used to parametrize the light absorption and scattering coefficients of the optically significant water constituents (such as pure water, non-algal particles, CDOM, and phytoplankton). The model was validated with in situ downwelling irradiance profiles and apparent optical properties derived both from irradiance profiles and satellite data, such as the diffuse attenuation coefficients and remote sensing reflectance. Results showed that by using regional parameterizations that are not only related to chlorophyll concentration and vertical distribution, the model was able to capture a more accurate spectral response in the examined wavelength range compared to chlorophyll-related (or Case 1) optical models. When using alternative models that incorporated also measurements of CDOM fluorescence or particulate optical backscattering, the model skill increased at all examined wavelengths. Finally, using a multi-spectral optical configuration also enabled the estimation of the relative contribution of separate water constituents in the examined spectral range. Simulations including non-algal particles and CDOM performed up to 61% and 79% better than when considering the optical properties of pure seawater alone. Moreover, a simulation including phytoplankton light absorption resulted in an error reduction of up to 42%, especially at 412 nm and with a more uniform response at the wavelengths considered.This work was performed within the framework of the BIOPTIMOD CMEMS Service Evolution project. CMEMS is implemented by Mercator Ocean International within the framework of a delegation agreement with the European Union. This study was supported by the following research projects funding BGC-Argo floats: NAOS (funded by the Agence Nationale de la Recherche in the frame of the French “Equipement d’avenir” program, grant agreement ANR J11R107-F), remOcean (funded by the ,European Research Council grant agreement 246777), Argo-Italy (funded by the Italian Ministry of Education, University and Research), and the French Bio-Argo program (Bio-Argo France; funded by CNES-TOSCA, LEFE Cyber, and GMMC). The authors would especially like to thank Giorgio Bolzon for his invaluable help and IT support in data management, as well as development of codes and libraries to analyze float and satellite products. Special thanks also to Ilya Chernov (Russian Academy of Science) for his contribution in developing the RT model.Peer ReviewedWiley20212021-10-0420212021-11-04journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/355656https://dx.doi.org/10.1029/2021JC017690reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3556562026-05-27T15:37:01Z
dc.title.none.fl_str_mv Radiative transfer modeling with BGC-Argo float data in the Mediterranean Sea
title Radiative transfer modeling with BGC-Argo float data in the Mediterranean Sea
spellingShingle Radiative transfer modeling with BGC-Argo float data in the Mediterranean Sea
Terzic, Elena
Mediterranean Sea
Radiative transfer
Light--Scattering
Marine biology
Mediterrània, Mar
Transferència radiativa
Llum -- Difusió
Biologia marina
Àrees temàtiques de la UPC::Física
title_short Radiative transfer modeling with BGC-Argo float data in the Mediterranean Sea
title_full Radiative transfer modeling with BGC-Argo float data in the Mediterranean Sea
title_fullStr Radiative transfer modeling with BGC-Argo float data in the Mediterranean Sea
title_full_unstemmed Radiative transfer modeling with BGC-Argo float data in the Mediterranean Sea
title_sort Radiative transfer modeling with BGC-Argo float data in the Mediterranean Sea
dc.creator.none.fl_str_mv Terzic, Elena
Miró Jané, Arnau|||0000-0002-2772-6050
Organelli, Emanuele
Kowalczuk, Piotr
D'Ortenzio, Fabrizio
Lazzari, Paolo
author Terzic, Elena
author_facet Terzic, Elena
Miró Jané, Arnau|||0000-0002-2772-6050
Organelli, Emanuele
Kowalczuk, Piotr
D'Ortenzio, Fabrizio
Lazzari, Paolo
author_role author
author2 Miró Jané, Arnau|||0000-0002-2772-6050
Organelli, Emanuele
Kowalczuk, Piotr
D'Ortenzio, Fabrizio
Lazzari, Paolo
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Mediterranean Sea
Radiative transfer
Light--Scattering
Marine biology
Mediterrània, Mar
Transferència radiativa
Llum -- Difusió
Biologia marina
Àrees temàtiques de la UPC::Física
topic Mediterranean Sea
Radiative transfer
Light--Scattering
Marine biology
Mediterrània, Mar
Transferència radiativa
Llum -- Difusió
Biologia marina
Àrees temàtiques de la UPC::Física
description A radiative transfer model was parameterized and validated using Biogeochemical Argo float data acquired between 2012 and 2017 across the Mediterranean Sea. Fluorescence-derived chlorophyll urn:x-wiley:21699275:media:jgrc24745:jgrc24745-math-0001 concentration, particulate optical backscattering at 700 nm, and fluorescence of chromophoric dissolved organic matter (CDOM) were used to parametrize the light absorption and scattering coefficients of the optically significant water constituents (such as pure water, non-algal particles, CDOM, and phytoplankton). The model was validated with in situ downwelling irradiance profiles and apparent optical properties derived both from irradiance profiles and satellite data, such as the diffuse attenuation coefficients and remote sensing reflectance. Results showed that by using regional parameterizations that are not only related to chlorophyll concentration and vertical distribution, the model was able to capture a more accurate spectral response in the examined wavelength range compared to chlorophyll-related (or Case 1) optical models. When using alternative models that incorporated also measurements of CDOM fluorescence or particulate optical backscattering, the model skill increased at all examined wavelengths. Finally, using a multi-spectral optical configuration also enabled the estimation of the relative contribution of separate water constituents in the examined spectral range. Simulations including non-algal particles and CDOM performed up to 61% and 79% better than when considering the optical properties of pure seawater alone. Moreover, a simulation including phytoplankton light absorption resulted in an error reduction of up to 42%, especially at 412 nm and with a more uniform response at the wavelengths considered.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-10-04
2021
2021-11-04
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/355656
https://dx.doi.org/10.1029/2021JC017690
url https://hdl.handle.net/2117/355656
https://dx.doi.org/10.1029/2021JC017690
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2

http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2

http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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