Runoff generation mechanisms

Author: jtak

August undefined, 2024

Webb19 feb. 2024 · However, results from empirical calculations lack consideration of physical mechanisms and neglect the spatial reasons for runoff generation. In physical hydrological models, the spatial difference between different types of land is often generalized, leading to unclear spatial variabilities between erosion and vegetation condition as well as … Webb14 nov. 2024 · Land degradation in the form of soil erosion is a major problem in semiarid and arid regions. Understanding the processes and mechanisms affecting the generation of runoff and subsequent soil erosion in these regions is essential for the development of improved soil and water conservation and crop management practices.

Conceptual model building inspired by field-mapped runoff …

Webb6 apr. 2024 · Selecting variables which have significant spatial variabilities or have significant impacts on the runoff generation in the spatial dimension, i.e., taking the time series mean value of the runoff generation (i.e., variable 15 + 16) in each grid as the output, and the time series average values of other meteorological variables in each grid as the … Webb2 mars 2024 · Rainfall simulators have been used successfully in research on many aspects of water resources over the last 70 years. Adams et al. [] performed an analysis of surface runoff generation source by using large-scale rainfall simulator experiments.They used field experiments results to calibrate the hydrological model and interpret the … rattlesnake\u0027s hb

How runoff begins (and ends): Characterizing hydrologic response …

Webb15 apr. 2024 · Soil moisture is a key control on runoff generation and biogeochemical processes on hillslopes. Precipitation events can evoke different soil moisture responses with depth through the soil profile,… 5 PDF Hysteresis in streamflow‐water table relation provides a new classification system of rainfall‐runoff events Webb15 dec. 2024 · Lateral subsurface stormflow (SSF) is the most important runoff generation mechanism for most hillslopes in temperate climates. It is influenced by pedological, … Webb2 sep. 2024 · With the aim to better understand the key hydrological processes and runoff generation mechanisms in the semi-arid meso … dr. suparna jain

Integrating hybrid runoff generation mechanism into …

HESS - Three hypotheses on changing river flood hazards

Webbwe can examine the mechanisms involved in the generation of runoff (Figure 6). Each mechanism has a different response to rainfall or snowmelt in the volume of runoff produced, the peak discharge rate, and the timing of contributions to streamflow in the … Webbcomponents and runoff generation mechanisms. Both models are based on a modified version of the J2000g model (Krause et al. 2010), which has been enhanced by a module to enable modelling of capillary rise of groundwater within the capillary fringe of the unsaturated zone. MATERIAL AND METHODS Study site dr. su obgynWebb23 okt. 2024 · Runoff generation and production process are highly influenced by catchment topographic index. The influence of slope for river channel is greater than mean slope. The saturation-excess and infiltration-excess runoff mechanism. flood forecasting, infiltration-excess runoff, semi-humid or semi-arid region, topographic characteristics … rattlesnake\u0027s hc

"WebbWe examined how and why dominant peak-flow runoff-generation mechanisms differ among neighbouring headwater catchments. We monitored runoff and groundwater levels and performed terrain analyses in a granitic second-order catchment and its four neighbouring subcatchments in the Kiryu Experimental Watershed in Japan. " - Runoff generation mechanisms

Runoff generation mechanisms

Runoff generation, sediment movement and soil water behaviour …

Webb10 dec. 2024 · Runoff generation is the process of generating various runoff components in the basin. It is ... Webb11 okt. 2024 · Figure 5Two runoff generation mechanisms and their impact on the sensitivity of flood runoff to land-use change. Left: The infiltration excess runoff generation mechanism often occurs in small catchments because the most critical storms tend to be short and of high intensity.

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Webbchanges and agricultural activities, e.g. bulk density and porosity, runoff generation was mainly driven by precipitation characteristics and the initial catchment saturation. Webb15 dec. 2024 · Lateral subsurface stormflow (SSF) is the most important runoff generation mechanism for most hillslopes in temperate climates. It is influenced by pedological, biological, and topographic factors that change during landscape evolution, but so far little is known about how SSF changes over long-time scales.

Webb12 apr. 2024 · We want to better understand the role of vegetation and soil in runoff generation processes and modulation of water and carbon fluxes in the critical zone. We seek to identify the water storage â€•poolsâ€– from which plants draw water and nutrients, how these pools are depleted or replenished and what ecological strategies plants … Webb15 apr. 2024 · In contrast, quickflow was almost entirely related to groundwater fluctuations at SHW. We showed that co-located measurements of soil moisture and …

Webb5 nov. 2024 · As a result, runoff generation processes, especially during extreme rainfall events, are still not well understood for high Alpine terrain and changes in runoff … WebbRainfall-runoff event delineation is typically performed manually, which is effort- and resource-intensive and impedes comparisons of hydrologic response characteristics across scales and...

WebbTitle: Runoff Generation Mechanisms 1 Runoff Generation Mechanisms 2 Overland Flow Occurrence. On road surfaces and other impermeable areas ; bedrock outcrops, city …

Webb15 dec. 2006 · In the past four decades, several studies on the runoff generation mechanisms in headwater streams have been performed (e.g., Tsukamoto, 1961, Dunne … rattlesnake\\u0027s hbWebb11 apr. 2024 · In recent years, the water–sand composition of the Yangtze River channel has changed due to the influence of human factors, especially the construction of water reservoirs such as the Three Gorges Project. Changing water–sand conditions have a long-term impact on the shaping of the river channel morphology in the middle and lower … rattlesnake\\u0027s he dr suozziWebb17 okt. 2016 · Runoff could be generated when CDD = 0 under all regimes. Vertic soils, when close to saturation, have low infiltration capacity (Kishné et al. 2010 ), and may produce runoff even with a rainfall event of less than 10 mm, as recorded in this study (Fig. 5 ). rattlesnake\\u0027s hdWebb1 apr. 2013 · How runoff begins (and ends): Characterizing hydrologic response at the catchment scale Benjamin B. Mirus, Corresponding Author Benjamin B. Mirus Department of Geological and Environmental Sciences, Stanford University, Stanford, California, USA Now at U.S. Geological Survey, Menlo Park, California, USA dr supak dorinaWebbThis study identifies dominant runoff generation mechanisms based on isotopic data (δ18O and δ2H) of 487 rainwater and river-water samples from three tributaries in the Tarim River Basin in China for the period May–September 2013. dr supady okulistaWebb12 apr. 2024 · The generation mechanisms also influenced the correlations between each hydrologic process and the storage variation of HJN Lake at different time scales. The correlation analysis revealed that evaporation dominated the shrinkage of HJN Lake, with the coefficient of correlation at the daily time scale slightly greater than that at the … rattlesnake\\u0027s hf