Reveal of contributing rainfalls to annual soil erosion and the response of runoff sediment output: A case of zonal yellow soil area

Journal of Hydrology, Journal Year: 2025, Volume and Issue: unknown, P. 132666 - 132666

Published: Jan. 1, 2025

Language: Английский

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Responses of surface runoff and soil water-erosion to changes in seasonal land cover and rainfall intensity; the case of Shilansha watershed, Rift Valley Basin of Ethiopia

Journal of Hydrology Regional Studies, Journal Year: 2025, Volume and Issue: 58, P. 102289 - 102289

Published: March 10, 2025

Language: Английский

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A Critical Appraisal on Various Hydrological and Hydrodynamic Models

Water Conservation Science and Engineering, Journal Year: 2025, Volume and Issue: 10(1)

Published: March 10, 2025

Language: Английский

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Evolución de la modelización numérica bidimensional del flujo en lámina libre a través del software Iber

Ingeniería del agua, Journal Year: 2025, Volume and Issue: 29(2), P. 114 - 131

Published: April 30, 2025

Iber es una herramienta de simulación hidráulica bidimensional surgida desde la academia para dar solución a problemas ingeniería y ambiental. Desde su nacimiento en 2010 se ha convertido un software ampliamente aceptado simular procesos hidrodinámicos flujo lámina libre. Este trabajo presenta evolución analiza las mejoras llevadas cabo que actualmente permiten realizar simulaciones, completamente acopladas con hidrodinámica, transporte sedimentos calidad aguas, hidrológicos nivel cuenca rural urbana, eco-hidráulica, etc. Los módulos capacidades cálculo implementados, así como líneas futuras, demuestran modelización hidrodinámica todavía tiene gran margen el desarrollo nuevas aplicaciones mejoras. sigue unas enfoque eminentemente práctico, permitiendo usuarios usuarias simulaciones cada vez más fidedignas al proceso físico representar.

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A Runoff‐On‐Grid Approach to Embed Hydrological Processes in Shallow Water Models

Water Resources Research, Journal Year: 2024, Volume and Issue: 60(7)

Published: June 26, 2024

Abstract Catchment‐scale hydrological models encountered dichotomies with the numerical hydrodynamic when describing surface routing process. We propose a new modeling framework, so‐called “Runoff‐On‐Grid” approach, for embedding distributed process‐based into shallow water models, as an alternative to traditional Fully Hydrodynamic Approach (also known Rain‐On‐Grid). Antecedent Soil Moisture, subsurface dynamics, and other topsoil processes are implicitly integrated in governing equations via proposed methodology. The resulting hydrological‐hydrodynamic coupling, based on DREAM model Iber+ model, enhances capabilities of both reference models. Through introducing non‐negligible runoff generation sources, Runoff‐On‐Grid approach extends medium‐sized vegetated and/or (semi)humid catchments, bypassing limitations widespread losses' empirical formulations. Employed event‐based analysis within High‐Performance Computing DREAM‐Iber provides efficient reliable reconstruction November 2020 flood that occurred Crotone (Italy), envisaging consequences similar future scenarios. show technique, nested emerging environmental technologies robust on‐site data, details hazard inducing merging physical hydrology advanced hydrodynamics.

Language: Английский

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New insights into the mechanisms underlying phosphorus removal from agricultural drainage water via eco-concrete ecological (ECE) ditches

Environmental Technology & Innovation, Journal Year: 2025, Volume and Issue: unknown, P. 104190 - 104190

Published: April 1, 2025

Language: Английский

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Infiltration Characteristics and Hydrodynamic Parameters in Response to Topographic Factors in Bare Soil Surfaces, Laboratory Experiments Based on Cropland Fields of Purple Soil in Southwest China

Agriculture, Journal Year: 2024, Volume and Issue: 14(10), P. 1820 - 1820

Published: Oct. 16, 2024

Topography is an important factor that impacts the hydrological processes on sloping farmlands. Yet, few studies have reported combined influences of slope gradient and position infiltration characteristics hydrodynamic parameters croplands in purple soil regions, area for agricultural productivity Southwest China. Here, laboratory-simulated rainfall experiments were conducted a steel trough (5 m long, 2 wide, 0.45 deep), lasted 1 h at rate 90 mm h−1 to examine variations rates under varying gradients (i.e., 3°, 6°, 10°, 15°, 21°, 27°) positions upper, middle, lower), explore relationships between detachment rate. The results showed decreased gradually with duration ultimately approached steady state six treatments. Cumulative ranged from 15.54 39.32 during rainfall, reduced increase gradient. Horton’s model outperforms other models predicting R2 value 0.86. Factors such as Darcy–Weisbach friction, flow shear force, Manning friction coefficient, unit energy, runoff depth varied following order: upper > middle lower slope, whilst Reynolds number Froude increased along transect positions. A significant linear function was fitted gentle slopes (3°, 10°), whereas exponential relationship observed steep (15°, 27°). Observation also suggested 15° critical sediment detachment, characteristics, parameters. Our provide theoretical insight developing predict topographic factors characteristic erosion hilly landscapes fields.

Language: Английский

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Hydro-geomorphological assessment of culvert vulnerability to flood-induced soil erosion using an ensemble modeling approach.

Environmental Modelling & Software, Journal Year: 2024, Volume and Issue: 183, P. 106243 - 106243

Published: Oct. 9, 2024

Language: Английский

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Land-Use-Change-Driven Erosion and Sediment Transport in the Yaqui River Sub-Basin (Mexico): Insights from Satellite Imagery and Hydraulic Simulations

Land, Journal Year: 2024, Volume and Issue: 13(11), P. 1846 - 1846

Published: Nov. 6, 2024

Soil erosion and sediment transport are significant concerns in the Yaqui River sub-basin northwest Mexico, driven by land use changes environmental degradation. This study aims to evaluate processes between 2000 2020 using a combination of satellite imagery numerical simulations with Iber software (Version 2.5.2). The primary objective is assess impacts changes, particularly conversion forest grassland, on rates transport. Satellite images from were analyzed detect cover while Iber’s module was used simulate patterns based Meyer–Peter Müller equation for bedload Hydrological topographical data incorporated provide accurate flow velocity, depth, potential. results reveal 35.3% reduction cover, leading increased steep areas. Simulation predictions highlighted areas high future potential, which at risk further soil loss if current trends continue. Flow velocity increased, contributing riverbank destabilization higher yield, posing infrastructure such as Álvaro Obregón Dam. underscores need targeted control measures sustainable management practices mitigate risks protect vital Basin.

Language: Английский

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1D-2D hydrodynamic and sediment transport modelling using MIKE models

Discover Water, Journal Year: 2024, Volume and Issue: 4(1)

Published: Oct. 30, 2024

A comprehensive modeling framework utilizing hydrodynamic and sediment transport models (MIKE Hydro River, MIKE 21 FM, 21C) was applied to the 33.57 km stretch of Banshadhara River from bridge, Gunupur Kashinagar town. Daily discharge, water levels, data 2013 2022 gauge stations used as model input, calibration–validation models. Additionally, satellite remote sensing for determined Manning's roughness (n) values well compared outputs. Calibration procedures ensured high accuracy, with achieving 98.3% agreement between observed simulated levels. 1D showing significant variability in total bed load ranging 0.3 3.83 m^3/s. The Wilcock & Crowe gravel formula accurately predicted within expected magnitude, albeit tending overestimate transport, indicative supply-limited conditions. 2D FM simulations highlighted flow dynamics, rapid flood arrival at varying current speeds along river, especially bends. 21C, focused on central portion, indicated erosion processes river bends discharge. Sediment accuracy approximately 86.7%, capturing general trends despite occasional discrepancies. Over a 10-year simulation, potential course shifting were observed, particularly near analysis provides valuable insights management, risk mitigation, resource infrastructure planning, environmental preservation basin similar environments.

Language: Английский

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