Ocean Science
Ocean Science
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Articles | Volume 21, issue 4
Articles | Volume 21, issue 4
https://doi.org/10.5194/os-21-1677-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-21-1677-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 21, issue 4
Technical note
 | 
05 Aug 2025
Technical note |  | 05 Aug 2025

Combining BioGeoChemical-Argo (BGC-Argo) floats and satellite observations for water column estimations of the particulate backscattering coefficient

Jorge García-Jiménez, Ana B. Ruescas, Julia Amorós-López, and Raphaëlle Sauzède

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Cited articles

Ahmed, S., Gilerson, A., Hlaing, S., Weidemann II, A., Arnone, R., and Wang, M.: Evaluation of ocean color data processing schemes for VIIRS sensor using in-situ data of coastal AERONET-OC sites, in: Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2013, International Society for Optics and Photonics, SPIE, 8888, 88880H, https://doi.org/10.1117/12.2028821, 2013. a
Argo: Argo float data and metadata from Global Data Assembly Centre (Argo GDAC), SEANOE [data set], https://doi.org/10.17882/42182, 2025. a
Bailey, S. W. and Werdell, P. J.: A multi-sensor approach for the on-orbit validation of ocean color satellite data products, Remote Sens. Environ., 102, 12–23, https://doi.org/10.1016/j.rse.2006.01.015, 2006. a
Barnes, B. B., Cannizzaro, J. P., English, D. C., and Hu, C.: Validation of VIIRS and MODIS reflectance data in coastal and oceanic waters: An assessment of methods, Remote Sens. Environ., 220, 110–123, https://doi.org/10.1016/j.rse.2018.10.034, 2019.  a
Behrenfeld, M. J. and Boss, E.: Beam attenuation and chlorophyll concentration as alternative optical indices of phytoplankton biomass, J. Marine Res., 64, https://elischolar.library.yale.edu/journal_of_marine_research/134 (last access: 28 July 2025), 2006. a
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Estimation of particulate organic carbon (POC) relies on proxies like the particulate backscattering coefficient (bbp) derived from BioGeoChemical-Argo (BGC-Argo) floats and satellite data. BGC-Argo floats provide global insights into vertical bio-optical dynamics. This study integrates Sentinel-3 OLCI (Ocean and Land Colour Instrument) data and machine learning approaches to improve bbp estimates in the top 250 m of the water column. The results differ based on the dynamics of the study areas.
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