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Gómez-Letona, Markel; Arístegui, Javier; Hernández-Hernández, Nauzet; Alvarez-Salgado, Xose Anton; Álvarez, Marta; Delgadillo, Erick; Pérez-Lorenzo, Maria; Teira, Eva; Hernández-León, Santiago; Sebastian, Marta (2022): Fluorescent dissolved organic matter and water mass distribution in the tropical and subtropical Atlantic in 2015 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.942941

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Abstract:
This dataset contains the results of the fluorescent dissolved organic matter characterisation (FDOM) and water mass optimum multiparameter analysis from the MAFIA cruise (Migrants and Active Flux In the Atlantic ocean). Samples were collected in the tropical and subtropical Atlantic during the MAFIA cruise (April 2015) on board the BIO Hespérides. Seawater samples for biogeochemical analyses were collected at 13 stations (from the Brazilian coast to the Canary Islands), from the surface down to 3500 m, using a General Oceanics oceanographic rosette equipped with 24 l PVC Niskin bottles. Fluorescence measurements were performed with a Perkin-Elmer LS55 spectrofluorometer and FDOM was characterised by means of a Parallel Factor analysis. The contribution of each water mass to each sample was objectively quantified applying an optimum multiparameter analysis (excluding mixed layer samples, here < 100 m). The aim of this dataset was to jointly characterise the FDOM and water mass distributions to infer the processes that shape the dissolved organic matter pool in the deep ocean (water mass mixing and history vs local processes).
Keyword(s):
Atlantic; bathypelagic; dark ocean; fluorescent dissolved organic matter; mesopelagic; optimum multiparameter analysis; Oxygen; water masses
Supplement to:
Gómez-Letona, Markel; Arístegui, Javier; Hernández-Hernández, Nauzet; Alvarez-Salgado, Xose Anton; Álvarez, Marta; Delgadillo, Erick; Pérez-Lorenzo, Maria; Teira, Eva; Hernández-León, Santiago; Sebastian, Marta (2022): Deep ocean prokaryotes and fluorescent dissolved organic matter reflect the history of the water masses across the Atlantic Ocean. Progress in Oceanography, 205, 102819, https://doi.org/10.1016/j.pocean.2022.102819
Further details:
Álvarez, Marta; Brea, S; Mercier, Herlé; Alvarez-Salgado, Xose Anton (2014): Mineralization of biogenic materials in the water masses of the South Atlantic Ocean. I: Assessment and results of an optimum multiparameter analysis. Progress in Oceanography, 123, 1-23, https://doi.org/10.1016/j.pocean.2013.12.007
Alvarez-Salgado, Xose Anton; Nieto-Cid, Mar; Álvarez, Marta; Pérez, Fiz F; Morin, Pascal; Mercier, Herlé (2013): New insights on the mineralization of dissolved organic matter in central, intermediate, and deep water masses of the northeast North Atlantic. Limnology and Oceanography, 58(2), 681-696, https://doi.org/10.4319/lo.2013.58.2.0681
Hernández-León, Santiago; UTM-CSIC (2018): MAFIA Cruise, RV Hespérides [dataset]. UTM-CSIC, https://doi.org/10.20351/29HE20150403
Stedmon, Colin A; Bro, Rasmus (2008): Characterizing dissolved organic matter fluorescence with parallel factor analysis: a tutorial. Limnology and Oceanography-Methods, 6(11), 572-579, https://doi.org/10.4319/lom.2008.6.572
Funding:
Horizon 2020 (H2020), grant/award no. 817806: Sustainable management of mesopelagic resources
Ministerio de Ciencia e Innovación (MICINN), grant/award no. CTM2012-39587-C04: Migrants and Active Flux In the Atlantic Ocean
Ministerio de Ciencia e Innovación (MICINN), grant/award no. CTM2015-69392-C3: Constraining organic carbon fluxes in an eastern boundary upwelling ecosystem (NW Africa): the role of non-sinking carbon in the context of the biological pump
Ministerio de Ciencia e Innovación (MICINN), grant/award no. CTM2017-83362-R: INTERES: Papel de las interacciones fitoplancton-bacterias en la respuesta del plancton microbiano a la entrada de nutrientes alóctonos
Ministerio de Ciencia e Innovación (MICINN), grant/award no. PID2019-109084RB-C21: Biogeochemical impact of mesoscale and sub-mesoscale processes along the life history of cyclonic and anticyclonic eddies: plankton variability and productivity
Coverage:
Median Latitude: 6.588580 * Median Longitude: -25.189154 * South-bound Latitude: -13.124000 * West-bound Longitude: -33.958800 * North-bound Latitude: 27.404000 * East-bound Longitude: -15.946000
Date/Time Start: 2015-04-05T00:45:00 * Date/Time End: 2015-04-28T20:32:07
Size:
2 datasets

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