Search results for "Hydrological processes"

showing 6 items of 6 documents

Climate Change in the Mediterranean Basin (Part II): A Review of Challenges and Uncertainties in Climate Change Modeling and Impact Analyses

2023

AbstractThe Mediterranean basin is particularly prone to climate change and vulnerable to its impacts. One of the most relevant consequences of climate change, especially for the southern Mediterranean regions, is certainly water scarcity as result of a reduction of surface runoff and groundwater levels. Despite the progress achieved in recent years in the field of climate change and its impact on water resources, results and outcomes should be treated with due caution since any future climate projection and derived implications are inevitably affected by a certain degree of uncertainty arising from each different stage of the entire modeling chain. This work offers a comprehensive overview…

Climate change Mediterranean basin Hydrological processes Uncertainty Water resourcesSettore ICAR/02 - Costruzioni Idrauliche E Marittime E IdrologiaWater Science and TechnologyCivil and Structural EngineeringWater Resources Management
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Physically-based and distributed approach to analyze rainfall-triggered landslides at watershed scale

2011

Abstract Landslides are a serious threat to life and property throughout the world. The causes of landslides are various since multiple dynamic processes are involved in driving slope failures. One of these causes is prolonged rainfall, which affects slope stability in different ways. Water infiltrating in a hillslope may cause a rise of the piezometric surface, which, in turn, involves an increase of the pore water pressure and a decrease of the soil shear resistance. For this reason, knowledge of spatio-temporal dynamics of soil water content, infiltration processes and groundwater dynamics, is of considerable importance in the understanding and prediction of landslides dynamics. In this …

HydrologyHydrological processeSettore ICAR/02 - Costruzioni Idrauliche E Marittime E IdrologiaFactor of safetyLandslideLandslide; Hydrological processes; Stability; Factor of safetyPore water pressureInfiltration (hydrology)LandslideLandslide mitigationSlope stabilityCauses of landslidesHydrological processesStabilityGroundwaterGeologyVegetation and slope stabilityEarth-Surface Processes
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The Effect of Hydrology on Soil Erosion

2020

In this Special Issue, we have tried to include manuscripts about soil erosion and degradation processes and the accelerated rates due to hydrological processes and climate change. We considered that the main goal was successfully reached. The new research focused on measurements, modelling, and experiments under field or laboratory conditions developed at different scales (pedon, hillslope, and catchment) were submitted and published. This Special Issue received investigations from different parts of the world such as Ethiopia, Morocco, China, Iran, Italy, Portugal, Greece and Spain, among others. We are happy to see that all papers presented findings characterized as unconventional, provo…

Hydrologylcsh:TD201-500soil erosionlcsh:Hydraulic engineeringLand usehydrological processesdifferent scalesGeography Planning and DevelopmentClimate changeexperimentsAquatic ScienceBiochemistryNatural resourcemodelslcsh:Water supply for domestic and industrial purposesGeographylcsh:TC1-978Soil retrogression and degradationUrbanizationLand degradationSoil conservationSurface runoffWater Science and TechnologyWater
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INVESTIGATIONS ON INFILTRATION METHODS FOR AN IMPROVED SOIL HYDRAULIC CHARACTERIZATION

2020

Infiltration soil hydraulic properties saturated soil hydraulic conductivity surface hydrological processes BEST procedure for soil hydraulic characterization two-stage methodology height of water pouring effects soil sealing rainfall simulation beerkan infiltration experiment BEST algorithms laboratory investigation falling-head one dimensional infiltration simplified falling-head technique automatic infiltrometer Arduino parameterization of model for single-ring infiltration monitoring saturated hydraulic conductivity
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Climate Change in the Mediterranean Basin (Part I): Induced Alterations on Climate Forcings and Hydrological Processes

2022

In the last years, the Mediterranean basin has been widely recognized as one of the most vulnerable areas in the world to climate change; because of its high concentration of urban and industrial settlements, it is one of the most impacted areas of the world in terms of water scarcity. The present paper aims at reviewing the main observed and predicted effects of climate change on hydrological processes directly related to water availability in the Mediterranean Basin, mainly focusing on the last ten years of research. While an in-depth discussion about possible future water scarcity problem in the Mediterranean area and the sources of uncertainty affecting future climate projections and im…

Settore ICAR/02 - Costruzioni Idrauliche E Marittime E IdrologiaClimate Change Hydrological Processes Mediterranean Basin Precipitation RunoffWater Science and TechnologyCivil and Structural Engineering
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Testing an adapted beerkan infiltration run for a hydrologically relevant soil hydraulic characterization

2020

Abstract Literature raises doubts about the usability of infiltrometer methods to characterize soils in a hydrological perspective since these methods often yield excessively high infiltration rates or saturated soil hydraulic conductivity, Ks, values. For a loam (AR) and a silty-clay (RO) soil, beerkan infiltration runs were adapted in the perspective to obtain usable soil data to predict rainfall partition into infiltration and rainfall excess. In particular, the initially nearly dry soil was sampled with different water volumes (15 or 30) and heights of water application (low, L, 0.03 m, and high, H, 1.5 m), and the BEST-steady algorithm was applied to determine sorptivity, S, and Ks. Th…

SorptivitySoil scienceInfiltration (HVAC)Surface hydrological processesExperimental methodHydraulic conductivitySoil hydraulic propertieLoamSoil waterEnvironmental scienceSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-ForestaliInfiltrometerSurface layerBEST procedureSurface runoffWater Science and Technology
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