Le projet base de données pour les observatoires en hydrologie : un outil pour la bancarisation, la gestion et la mise à disposition des données issues des observatoires hydrologiques de long terme à Irstea

Branger, Flora; Thollet, Fabien; Crochemore, Maxime; Poisbeau, Mathieu; Raidelet, Nicolas; Farissier, Pierre; Lagouy, M.; Dramais, Guillaume; Coz, Jérôme Le; Guerin, A; Tallec, Gaëlle; Peschard, Julien; Mathys, Nicolle; Klotz, Sébastien; Tolsa, Mathieu

doi:10.1051/lhb/2014005

Cited by 12 publications

(13 citation statements)

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“…The time series are made available on a public online database named 'Base de Données des Observatoires en Hydrologie (BDOH)' (Branger et al, 2014) for Database of Hydrologic observatories (https://bdoh. irstea.fr/ARC-ISERE/) with a DOI reference (10.17180/OBS.ARC-ISERE).…”

Section: Data Availability Statementmentioning

confidence: 99%

Long term high frequency sediment observatory in an alpine catchment: The Arc‐Isère rivers, France

Thollet

Rousseau

Camenen

et al. 2021

Hydrological Processes

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We present a dataset on to the Arc-Isère long-term environmental research observatory, which is part of the Rhône Basin Long Term Environmental Research Observatory. This alpine catchment located in the French Alps is characterized by high Suspended Particulate Matter (SPM) in anthropogenized valleys. Suspended Sediment Concentrations (SSC) naturally observed in the river are very high, ranging from a few tens of milligrams per litre at low flow to tens of grams per litre during major natural hydrological events (floods, debris flows) or river dam hydraulic flushes. One research objective related to this site is to better understanding the SSC dynamics along the river using a system of nested catchments (Arvan, Arc, and Isère) in order to assess both temporal and spatial dynamics. The data allow the quantification of fine sediment yields and also the evaluation of possible morphological changes due to fine sediment deposition or resuspension. Additionally, the observatory database support studies on contaminants (either dissolved or particulate contaminants). Our monitoring includes six stations with high frequency (2-30 min) streamflow, SSC measurement using turbidity sensors, and associated automatic sampling. Discharge is measured via water level measurements and a rating curve. The oldest station (Grenoble-campus) started recording discharge and concentration data from April 2006 while others stations were built between 2009 and 2011. Data are available in an online data website called 'Base de Données des Observatoires en Hydrologie' (Hydrological observatory database, https://bdoh.irstea.fr/ARC-ISERE/) with a DOI reference for the dataset. The hydrological and sediment transport time series are stored, managed and made available to a wide community with unfettered access in order to be used at their full extent. This database is used as a data exchange tool for both scientists and operational end-users and there is an associated online tool to compute integrated fluxes.

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Section: Data Availability Statementmentioning

confidence: 99%

Long term high frequency sediment observatory in an alpine catchment: The Arc‐Isère rivers, France

Thollet

Rousseau

Camenen

et al. 2021

Hydrological Processes

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“…Station-specific median particulate contaminant concentrations were used for the nonmonitored periods to fill gaps in the measured time series (Poulier et al, 2019). The BDOH tool was used to do the calculation of SPM and contaminant fluxes (Branger et al, 2014), and data are available online (Thollet et al, 2018).…”

Section: 6chemical Analysis Of Spmmentioning

confidence: 99%

Impact of dam flushing operations on sediment dynamics and quality in the upper Rhône River, France

Lepage

Launay

Coz

et al. 2020

Journal of Environmental Management

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Reviewer 1 Highlights corrected Sediment dynamic differed during flushing operations and flood events Line 15 corrected The Rhône River (France) has been used for energy production for decades and 21 dams have been built. Line 29-In general it is not advisable to start a sentence with an acronym, rather right it out in full corrected The SPM contamination was generally lower than during baseflow and flood regimes. Line 131 corrected More than 3 x 106 m3 of SPM were thus stored in the Verbois reservoir between 2003 and 2012 (Services industriels de Genève, 2014). Line 133 corrected [...] which transports ~0.7 x 106 m3 of SPM per year (approx. 1 to 3 tons dry weight) [...] Line 309-314-This section reads as introduction or as part of the discussion According to reviewer 4, this section was moved in the Materials and Method part.

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“…pour les données continues, les flux sont calculés directement dans l'application BDOH 3 (Branger et al, 2014) ; pour les données discontinues, les flux sont calculés par deux méthodes :…”

Section: Méthodes De Calcul Du Flux De Mesunclassified

Réévaluation des apports moyens de matières en suspension de l'Arve au Rhône

et al. 2019

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L'Arve est le principal contributeur au flux de matières en suspension (MES) du Rhône entre le lac Léman et Lyon. Une évaluation fiable des apports moyens de MES de l'Arve est cruciale pour la connaissance et la gestion des flux sédimentaires sur ce secteur du Rhône et à travers ses aménagements hydroélectriques. Cette étude vise à réévaluer les flux moyens de l'Arve en suspension fine, en croisant les données historiques avec les flux de MES de référence pour les années 2012 à 2017 issus du suivi turbidimétrique en continu à la station de Genève Bout-du-Monde de l'Observatoire des sédiments du Rhône. Ce jeu de données a permis d'évaluer les deux méthodes de calcul des flux mises en œuvre par le Service hydrologique national suisse pour les périodes avec des mesures discontinues des MES : la méthode des débits classés et la courbe de tarage sédimentaire à deux segments. En combinant au mieux ces méthodes, le flux moyen interannuel entre 1965 et 2017 est estimé à 0,68 Mt/an avec un écart-type de 0,29 Mt/an. Cette valeur est cohérente avec le flux moyen mesuré par la station turbidimétrique entre 2012 et 2017 (0,63 Mt) et avec un suivi historique pour l'année 1890 (0,71 Mt) ; en revanche, elle est nettement inférieure à l'estimation précédemment proposée par l'étude globale Rhône (2000), comprise entre 1,0 et 3,6 Mt/an, qui inclut sans doute la suspension graduée de sables et limons grossiers, très mal connue. À partir de relevés bathymétriques et granulométrique des dépôts, nous avons estimé que la retenue de Verbois intercepte approximativement 0,1 Mt/an de particules grossières issues de l'Arve et environ la moitié des apports de MES.

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Le projet base de données pour les observatoires en hydrologie : un outil pour la bancarisation, la gestion et la mise à disposition des données issues des observatoires hydrologiques de long terme à Irstea

Cited by 12 publications

References 0 publications

Long term high frequency sediment observatory in an alpine catchment: The Arc‐Isère rivers, France

Long term high frequency sediment observatory in an alpine catchment: The Arc‐Isère rivers, France

Impact of dam flushing operations on sediment dynamics and quality in the upper Rhône River, France

Réévaluation des apports moyens de matières en suspension de l'Arve au Rhône

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