FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4322006033> ?p ?o ?g. }

• W4322006033 abstract "Hydrometric stations may be influenced by the sea tide, disrupting the stage-discharge relation and making it difficult to estimate discharge through a traditional rating curve. Twin-gauge stage-fall-discharge (SFD) rating curves, based on a flow friction equation and stage and water slope measurements, are a possible alternative, but they were found to perform poorly when the tide effect is strong. To capture the complex flow dynamics, including flow reversal, an approach via a 1D hydrodynamic model is proposed.To set up the model, the cross-sectional geometry, friction coefficient, upstream discharge and downstream water level are required. In hydrodynamic modelling, the friction coefficients are the main calibration parameters and spatial changes of roughness combined with unsteady flow make their manual calibration difficult. Moreover, the understanding and quantification of uncertainties associated with data and model is an important step of the calibration process. Therefore, an automatic calibration of friction coefficients is proposed via Bayesian inference. In terms of numerical tools, the selected 1D hydrodynamic code is Mage, developed by INRAE, solving the 1D Saint-Venant equations for subcritical, transient flows. Likewise, the Bayesian Modeling (BaM) framework (https://github.com/BaM-tools) is used to specify prior information and estimate friction coefficients and their uncertainty, using stage and discharge observations.The case study is the Lower Seine River in France, because it comes as a simple hydraulic model with a strong tidal effect with gauging campaigns and stage records available. Discharge time series of the Seine at Poses and of the Eure, the only significant tributary, are specified as upstream boundary conditions.&#160; The downstream boundary condition is the stage time series of the Seine at Saint-L&#233;onard, reflecting the tidal signal. Calibration data include stage records at different stations and times, and ADCP discharge measurements at Rouen during several tidal cycles.For all reaches, a lognormal distribution with 95% probability interval [33; 49] is used as a prior for the Strickler coefficient. Bayesian estimation then provides their posterior distributions, represented by a large number of samples generated by means of a Markov Chain Monte Carlo (MCMC) algorithm. These samples can be used to identify optimal &#8220;maxpost&#8221; coefficients (maximizing the posterior density), but also to quantify and propagate their uncertainty. Thereafter, a propagation is performed to estimate the stage and discharge series of all cross-sections along with their uncertainty.This study aims to provide an alternative solution for the continuous monitoring of discharge from stage records and upstream discharges in tidal rivers in order to improve flood forecasting, warning systems and the understanding of tidal-influence on hydrometric stations." @default.
• W4322006033 created "2023-02-26" @default.
• W4322006033 creator A5032270243 @default.
• W4322006033 creator A5056808810 @default.
• W4322006033 creator A5060631053 @default.
• W4322006033 creator A5078289757 @default.
• W4322006033 date "2023-05-15" @default.
• W4322006033 modified "2023-09-29" @default.
• W4322006033 title "Bayesian calibration of a 1D hydrodynamic model used as a rating curve in a tidal river: Application to the Lower Seine River, France" @default.
• W4322006033 doi "https://doi.org/10.5194/egusphere-egu23-6587" @default.
• W4322006033 hasPublicationYear "2023" @default.
• W4322006033 type Work @default.
• W4322006033 citedByCount "0" @default.
• W4322006033 crossrefType "posted-content" @default.
• W4322006033 hasAuthorship W4322006033A5032270243 @default.
• W4322006033 hasAuthorship W4322006033A5056808810 @default.
• W4322006033 hasAuthorship W4322006033A5060631053 @default.
• W4322006033 hasAuthorship W4322006033A5078289757 @default.
• W4322006033 hasConcept C105795698 @default.
• W4322006033 hasConcept C107673813 @default.
• W4322006033 hasConcept C111368507 @default.
• W4322006033 hasConcept C121332964 @default.
• W4322006033 hasConcept C126645576 @default.
• W4322006033 hasConcept C127313418 @default.
• W4322006033 hasConcept C136856113 @default.
• W4322006033 hasConcept C146357865 @default.
• W4322006033 hasConcept C151730666 @default.
• W4322006033 hasConcept C160234255 @default.
• W4322006033 hasConcept C165838908 @default.
• W4322006033 hasConcept C170028559 @default.
• W4322006033 hasConcept C205649164 @default.
• W4322006033 hasConcept C2816523 @default.
• W4322006033 hasConcept C33923547 @default.
• W4322006033 hasConcept C38349280 @default.
• W4322006033 hasConcept C39432304 @default.
• W4322006033 hasConcept C56200935 @default.
• W4322006033 hasConcept C57879066 @default.
• W4322006033 hasConcept C58640448 @default.
• W4322006033 hasConcept C74501621 @default.
• W4322006033 hasConcept C81660378 @default.
• W4322006033 hasConcept C87027312 @default.
• W4322006033 hasConcept C97355855 @default.
• W4322006033 hasConceptScore W4322006033C105795698 @default.
• W4322006033 hasConceptScore W4322006033C107673813 @default.
• W4322006033 hasConceptScore W4322006033C111368507 @default.
• W4322006033 hasConceptScore W4322006033C121332964 @default.
• W4322006033 hasConceptScore W4322006033C126645576 @default.
• W4322006033 hasConceptScore W4322006033C127313418 @default.
• W4322006033 hasConceptScore W4322006033C136856113 @default.
• W4322006033 hasConceptScore W4322006033C146357865 @default.
• W4322006033 hasConceptScore W4322006033C151730666 @default.
• W4322006033 hasConceptScore W4322006033C160234255 @default.
• W4322006033 hasConceptScore W4322006033C165838908 @default.
• W4322006033 hasConceptScore W4322006033C170028559 @default.
• W4322006033 hasConceptScore W4322006033C205649164 @default.
• W4322006033 hasConceptScore W4322006033C2816523 @default.
• W4322006033 hasConceptScore W4322006033C33923547 @default.
• W4322006033 hasConceptScore W4322006033C38349280 @default.
• W4322006033 hasConceptScore W4322006033C39432304 @default.
• W4322006033 hasConceptScore W4322006033C56200935 @default.
• W4322006033 hasConceptScore W4322006033C57879066 @default.
• W4322006033 hasConceptScore W4322006033C58640448 @default.
• W4322006033 hasConceptScore W4322006033C74501621 @default.
• W4322006033 hasConceptScore W4322006033C81660378 @default.
• W4322006033 hasConceptScore W4322006033C87027312 @default.
• W4322006033 hasConceptScore W4322006033C97355855 @default.
• W4322006033 hasLocation W43220060331 @default.
• W4322006033 hasOpenAccess W4322006033 @default.
• W4322006033 hasPrimaryLocation W43220060331 @default.
• W4322006033 hasRelatedWork W1995101459 @default.
• W4322006033 hasRelatedWork W2092330356 @default.
• W4322006033 hasRelatedWork W2536089075 @default.
• W4322006033 hasRelatedWork W2967682598 @default.
• W4322006033 hasRelatedWork W3011384996 @default.
• W4322006033 hasRelatedWork W3014659744 @default.
• W4322006033 hasRelatedWork W3041488498 @default.
• W4322006033 hasRelatedWork W3171196943 @default.
• W4322006033 hasRelatedWork W4237132208 @default.
• W4322006033 hasRelatedWork W4322006033 @default.
• W4322006033 isParatext "false" @default.
• W4322006033 isRetracted "false" @default.
• W4322006033 workType "article" @default.