Modelling trace metal transfer in large rivers under dynamic hydrology: A coupled hydrodynamic and chemical equilibrium model

Abstract

The NERC and CEH trademarks and logos ('the Trademarks') are registered trademarks of NERC in the UK and other countries, and may not be used without the prior written consent of the Trademark owner.

Setting the Flow Accumulation Threshold Based on Environmental and Morphologic Features to Extract River Networks from Digital Elevation Models

“…A FAT = 9000 is estimated as being optimal within the entire study area given the heterogeneity of river networks in Hubei province. 1) minimum singular exponent; (2) fractal spectrum corresponding to αmin; (3) maximum singular exponent; (4) fractal spectrum corresponding to α max ; (5) range of the singularity exponent; (6) multifractal spectral elevation difference.…”

“…River networks constitute topographic features that are widely used in the analysis of regional geomorphic features and hydrogeological environments [1,2]. The accurate extraction of river networks is necessary for delineating water pollution sources, monitoring disturbances on rivers caused by human activities, determining flood levels in periods of heavy rain, assessing soil and water conservation measures, and enacting comprehensive management practices [3][4][5][6].…”

The Modeling of a River Impacted with Tailings Mudflows Based on the Differentiation of Spatiotemporal Domains and Assessment of Water–Sediment Interactions Using Machine Learning Approaches

“…Rivers are primary pathways for water and sediment transport and environments of water-sediment interactions. However, understanding and predicting the water composition responses to these interactions is challenging, because the interactions are subject to multiple factors that can change them over time and space [1]. One important factor is sediment change downstream, particularly during mixing with inflows from tributaries or hillslopes [2][3][4].…”

Modelling of solid / liquid fractionation of trace metals for suspended sediments according to the hydro-sedimentary conditions of rivers - Application to 137Cs in the Rhône River (France)

“…However, these different approaches are mainly based on geochemical concepts and remain difficult to apply at the temporal and spatial scales of a river for those they require to be coupled to hydro-sedimentary models (Garneau et al, 2017) and to measure or assess a number of environmental variables (Ilina et al, 2020). Moreover, and despite the central role of particle sizes in the solid/liquid fractionation of TMs with SS, this parameter is poorly considered by these models while, at the same time, it is little documented by the scientific literature related to Kd values for river systems.…”