PANGAEA_930423 High-Performance Liquid Chromatography in the Black Sea (29/03/2019) - Station 307 Ricour, Florian; Capet, Arthur High-Performance Liquid Chromatography in the Black Sea (29/03/2019) - Station 307 2021-04-15 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.930423 Earth Science geoscientificInformation Black Sea HPLC Complete unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 17.4 kBytes application/zip Ricour, Florian; Capet, Arthur; D'Ortenzio, Fabrizio; Delille, Bruno; Gregoire, M (2021): Dynamics of the deep chlorophyll maximum in the Black Sea as depicted by BGC-Argo floats. Biogeosciences, 18(2), 755-774, https://doi.org/10.5194/bg-18-755-2021

Within the frame of a study on the deep chlorophyll maximum in the Black Sea, water samples were collected conjointly to the deployment of a new Biogeochemical-Argo float (WMO 6903240). The sampling took place onboard the R/V Akademik (Bulgarian Academy of Sciences – Institute of Oceanology) in the western Black Sea (station 307, 43.16°N and 29°E) on March 29, 2018. Water samples were obtained using a CTD carousel with twelve 5 L Niskin bottles. Samples were taken at 12 different depths between the surface and 1000 meters, and were considered to be co-located in time and space with the float deployment. Seawater samples were vacuum filtered through 47 mm diameter Whatman GF/F glass fibre filters (0.7 micrometer pore size). After filtration, filters were stored in liquid nitrogen and kept at -80°C before being analyzed by High-Performance Liquid Chromatography (HPLC). HPLC analyses allow the determination of pigments and by extension the chlorophyll a (chl a) with the best known precision. Using this information on chl a, our objective was to validate, using chl a concentrations derived with HPLC, an algorithm that correct the chl a fluorescence measured by Biogeochemical-Argo floats in the Black Sea by removing the contamination due to the fluorescence of dissolved organic matter. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.930423"!

https://doi.org/10.5194/bg-18-755-2021 Dynamics of the deep chlorophyll maximum in the Black Sea as depicted by BGC-Argo floats DIF 9.4 2021-04-15 2026-06-26