seanoe:98376 DEFONTAINE Sophie Univ. Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33600 Pessac, France 2025-06-10 ISO 19115:2003/19139 1.0 Settling dynamics of muddy sediment in the Gironde-Garonne system 2024 2025-06-10 Defontaine Sophie, Jalon-Rojas Isabel, Sottolichio Aldo, Gratiot Nicolas, Legout Cédric, Lienart Camilla (2024). Settling dynamics of muddy sediment in the Gironde-Garonne system. SEANOE. https://doi.org/10.17882/98376 In addition to properly cite this dataset, it would be appreciated that the following work(s) be cited too, when using this dataset in a publication : Defontaine Sophie, Jalón‐Rojas Isabel, Sottolichio Aldo, Gratiot Nicolas, Legout Cédric, Lienart Camilla (2024). Factors Controlling Mud Floc Settling Velocity in a Highly Turbid Macrotidal Fluvial‐Estuarine System. Journal of Geophysical Research: Oceans, 129(10). https://doi.org/10.1029/2024JC021558 In the context of EMPHASE project (ANR-FRQ), two fields campaigns were carried out to determine the settling velocity and properties of suspended sediments during a semi-diurnal tidal cycle, as well as hydrodynamic conditions and water properties. The two sampling stations Bordeaux (Garonne Tidal River) and Fort Medoc (Gironde EStuary) were representative of two regions: a tidal river dominated by fresh water and an estuary affected by salty or brackish waters, inside the same land-sea continuum. Quasi in-situ measurements of settling velocity were carried out with a recently-patented instrument named System for the Characterisation of Aggregates and Flocs (SCAF). This study was supported by the EMPHASE project (ANR-FRQ). DEFONTAINE Sophie Univ. Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33600 Pessac, France JALON-ROJAS Isabel Univ. Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33600 Pessac, France SOTTOLICHIO Aldo Univ. Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33600 Pessac, France GRATIOT Nicolas Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, 38000 Grenoble, France LEGOUT Cédric Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, 38000 Grenoble, France LIENART Camilla Univ. Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33600 Pessac, France SEANOE https://www.seanoe.org/data/00872/98376/illustration.gif settling velocity higly turbid waters SCAF flocculation Garonne Tidal River Gironde Estuary Sediment dynamics Physical oceanography Currents Sedimentary fluxes ODATIS aggregation parameters and Essential Variable names 2024-09-16 geonetwork.thesaurus.external.theme.NVS.OD1 Physical oceanography SeaDataNet Parameter Disciplines 2021-04-07 geonetwork.thesaurus.external.parameter.NVS.P08 /Observational data/in-situ Type de jeux de donnée ODATIS 2024-10-15 geonetwork.thesaurus.local.theme.type_jeux_donnee CC-BY-NC (Creative Commons - Attribution, No commercial usage) Factors Controlling Mud Floc Settling Velocity in a Highly Turbid Macrotidal Fluvial‐Estuarine System 2024 American Geophysical Union (AGU) Defontaine Sophie Jalón‐Rojas Isabel Sottolichio Aldo Gratiot Nicolas Legout Cédric Lienart Camilla 10.1029/2024JC021558 oceans -1.479326 -0.040117 44.501877 45.807249 2022-09-26 2022-09-29 MATLAB ODS XLS, XLSX TEXTE https://www.seanoe.org/data/00872/98376/data/107739.mat WWW:DOWNLOAD-1.0-link--download Processed data ADCP data - 77 KB https://www.seanoe.org/data/00872/98376/data/107740.mat WWW:DOWNLOAD-1.0-link--download Processed data ADCP data - 78 KB https://www.seanoe.org/data/00872/98376/data/107741.ods WWW:DOWNLOAD-1.0-link--download Raw data Grain size distribution - 19 KB https://www.seanoe.org/data/00872/98376/data/107742.xlsx WWW:DOWNLOAD-1.0-link--download Processed data Organic matter - 11 KB https://www.seanoe.org/data/00872/98376/data/107743.txt WWW:DOWNLOAD-1.0-link--download Processed data Settling velocity 26/09 bottom - 297 bytes https://www.seanoe.org/data/00872/98376/data/107744.txt WWW:DOWNLOAD-1.0-link--download Processed data Settling velocity 29/09 bottom - 8 KB https://www.seanoe.org/data/00872/98376/data/107745.txt WWW:DOWNLOAD-1.0-link--download Processed data Settling velocity 26/09 surface - 7 KB https://www.seanoe.org/data/00872/98376/data/107746.txt WWW:DOWNLOAD-1.0-link--download Processed data Settling velocity 29/09 surface - 7 KB https://www.seanoe.org/data/00872/98376/data/107747.mat WWW:DOWNLOAD-1.0-link--download Processed data MPx DATA - 78 KB https://www.seanoe.org/data/00872/98376/data/107748.mat WWW:DOWNLOAD-1.0-link--download Processed data MPx DATA - 72 KB https://doi.org/10.17882/98376 WWW:LINK-1.0-http--metadata-URL DOI of the product https://www.seanoe.org/data/00872/98376/ rel-canonical Seanoe This deposit contains the data presented in a paper entitled "Factors controlling mud floc settling velocity in a highly turbid macrotidal fluvial-estuarine system" by Sophie Defontaine, Isabel Jalon-Rojas, Aldo Sottolichio, Nicolas Gratiot, Cédric Legout and Camilla Lienart, and submitted to JGR-Oceans. ## ADCP DATA : - sensor: Workhorse Sentinel 600 KHz - files : ADCP_26sept2022.mat and ADCP_29sept2022.mat - date of sampling : 26/09/2022 and 29/09/2022 - sites of sampling : Bordeaux (France) and Fort Médoc (France) Each ADCP data files contains: - 'U' : velocity component (m/s) projected the channel axis with positive values landward - 'V' : velocity component (m/s) directed laterally toward the right bank - 'Temps' : local time (UTC+2) - 'Profondeur' : depth (m) # ----------------------------------------- ## MPx DATA : - sensor: NKE MPx multiparameter probe - files : SMATCH_26sept2022.mat and SMATCH_29sept2022.mat - date of sampling : 26/09/2022 and 29/09/2022 - sites of sampling : Bordeaux (France) and Fort Médoc (France) Each MPx data files contains: - 'TIME' : local time (UTC+2) - 'PROFONDEUR' : depth (m) - 'TURBIDITE' : turbidity (NTU) - 'SALINITE' : salinity (-) - 'MES' : suspended sediment concentration (g/L) - 'TEMPERATURE' : temperature (°C) # ----------------------------------------- ## Settling velocity data : - sensor: SCAF - files : ws_bottom_26092022.txt, ws_bottom_29092022.txt, ws_surface_26092022.txt and ws_surface_29092022.txt - headers of each files contains the following informations : sampling site, date, sampling water depth, unity, time zone and sampling time. - settling velocity distribution are presented in rows !!! ws_bottom_26092022.txt file does not contains settling velocity distribution, because the suspended sediment concentration was too high and hence hindered settling occured. Only the settling velocity of the front is given. !!! # ----------------------------------------- ## Organic matter content data: - instrument: Thermo Finnigan Flash EA 1112 analyzer - file: Organic_matter.xlsx - Data are presented in a table containing: water depth of sampling (surface/bottom), sampling site, date and time of sampling, C/N (-), COP (µm/L), NOP (µm/L), MES (g/L) and COP/MES (%) # ----------------------------------------- ## GRAIN SIZE DISTRIBUTION: - instrument: Malvern laser-diffraction instrument - file : grain_size_distrib.ods - Data are presented in a table containing: sample name, date and time of sampling, site of sampling, depth, obscuration, residual-weighted, d (0.1), d (0.5), d (0.9), D [4, 3] - Volume weighted mean and Result Between User Sizes (Sizes in microns)