Des flux d'eau aux flux de matières en suspension et de contaminants associés : gestion d'un réseau de stations hydro-sédimentaires sur le Rhône

C. Le Bescond; F. Thollet; G. Poulier; S. Gairoard; H. Lepage; F. Branger; L. Jamet; N. Raidelet; O. Radakovitch; A. Dabrin; Marina Coquery; J. Le Coz

doi:10.1051/lhb/2018033

Journal articles

From water fluxes to suspended particulate matter and associated contaminant fluxes: management of hydro-sedimentary stations on the Rhône River

Des flux d'eau aux flux de matières en suspension et de contaminants associés : gestion d'un réseau de stations hydro-sédimentaires sur le Rhône

C. Le Bescond ¹ F. Thollet ¹ G. Poulier ¹ S. Gairoard H. Lepage ² F. Branger ¹ L. Jamet ¹ N. Raidelet ³ O. Radakovitch ² A. Dabrin ¹ Marina Coquery ¹ J. Le Coz ¹

1 UR Riverly - RiverLy

2 PSE-ENV/SRTE/LRTA

3 IRSTEA - Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture

Abstract : The database for hydrological observatories (BDOH) is an efficient tool for storage which allows the combination of water discharge data, suspended particulate matter (SPM) and particulate contaminants concentrations, produced thought a same observatory network, to calculate time series fluxes. This application is used in the Rhône Sediment Observatory (OSR) program to estimate SPM and their associated contaminants fluxes along the Rhône River and its main tributaries. However, incomplete time series need to be filled prior to computation in BDOH. Hence, a sensitivity test was run to evaluate the effect of different estimation methods of SPM concentration and particulate mercury time series on final instantaneous and accumulated fluxes on the Rhône River at the two main stations of the OSR network (Jons and Arles). The results demonstrate that the differences between SPM and particulate mercury annual fluxes assessed with different estimation methods are less than 5%. However, at monthly scale, estimation methods can create higher differences (26-51%). In the future, these preliminary results will be completed with the estimation of the uncertainties associated with particle flux measurements.

Keywords : time variability sediment data base particle

Document type :

Journal articles

Domain :

Environmental Sciences

Complete list of metadata

Cited literature [10 references] Display Hide Download

https://hal.archives-ouvertes.fr/hal-01945337
Contributor : Import Ws Irstea <>
Submitted on : Wednesday, December 5, 2018 - 11:38:01 AM
Last modification on : Tuesday, May 18, 2021 - 4:15:22 PM
Long-term archiving on: : Wednesday, March 6, 2019 - 1:50:19 PM

From water fluxes to suspended particulate matter and associated contaminant fluxes: management of hydro-sedimentary stations on the Rhône River

Des flux d'eau aux flux de matières en suspension et de contaminants associés : gestion d'un réseau de stations hydro-sédimentaires sur le Rhône

File

Identifiers

Collections

Citation

Export

Metrics

241

587