What does HORTON OVERLAND FLOW mean? HORTON OVERLAND FLOW meaning - HORTON OVERLAND FLO http://www.theaudiopedia.com What is HORTON OVERLAND FLOW?

Overland flow or surface run off on a saturated hill side.

2021-04-08 2016-12-29 Because overland flow decreased with increasing scale, rill erosion did not occur on hillslopes. Additionally, runoff coefficients were not significantly different among cover conditions during large storms; thus, the 'degraded' forest conditions appear not to greatly enhance peak flows or erosion potential at larger scales, especially when biomat flow is significant. To examine factors affecting Hortonian overland flow generation in forested hillslopes, we measured overland flow at plots in Japanese cypress (Chamaecyparis obtusa), Japanese ceder (Cryptomeria japonica), and broadleaf forests of three study sites (Kochi, Mie, and Tokyo), which had different geology and climate. Overland flow occurred at all plots. 2006-05-01 2021-02-09 Erosion by Hortonian overland flow on unvegetated small plots underlain by fine sandy silts averaged 2.45 kg sediment loss and 3.5 mm surface lowering during summer and fall, 1971, and averaged 5.58 kg sediment loss and 5.2 mm surface lowering during summer and fall, 1972.Total sediment loss and mean surface lowering during seven measurement periods in 1972 were highly correlated with total Author: Schroers, Samuel et al.; Genre: Journal Article; Published online: 2021-02-11; Open Access; Title: Hortonian overland flow, hillslope morphology and stream power I: Spatial energy distributions and steady-state power maxima Indeed, the saturation excess overland flow concept is usually understood to include a rapid subsurface flow component (e.g., Dunne and Leopold 1978 pp.

HORTON OVERLAND FLOW meaning - HORTON OVERLAND FLO http://www.theaudiopedia.com What is HORTON OVERLAND FLOW? This process is known as Hortonian overland flow. 2. when the combination of precipitation intensity and duration (and run-on from higher areas) saturates the soil and raises the water table to the surface. This process is known as saturation overland flow.

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256, 258). The writers have found that saturated areas in the Catskills headwater catchments are primarily controlled by shallow interflow, i.e., rapid subsurface lateral flows. Saturation overland flow (also called Dunne overland flow) is generated if subsurface hydraulic characteristics are not transmissive and if slopes are gentle and convergent. Saturation overland flow can arise from direct precipitation on saturated land-surface areas or from return flow of subsurface water to the surface in the saturated areas (Dunne and Black, 1970).

overland flow on many hillslopes. In fact there is a continuum of soil and climate conditions: from those with zero infiltration capacity, on which alI runoff is as Hortonian overland flow; via slopes with moderate infiltration capacities on which overland flow will occur with a

(Jones, 1988). Hortons modell är dock svåranvändbar It is now widely recognized that surface saturation can occur because of two quite distinct mechanisms—specifically, Horton overland flow Horton-flow: När nederbörd > infiltration. Ex: if soil surface can infiltrate 30mm/hr & precipitation 40mm/hr, then the overland flow will be 10mm.

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Paved surfaces such as asphalt, which are designed to be flat and impermeable, rapidly achieve Horton overland flow.

Effects of Spatial Variability of Saturated Hydraulic Conductivity on Hortonian Overland Flow. D. A. Woolhiser.
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water flux over the earth's surface; mostly streamflow since overland flow is partial-area concept was introduced, whereby Hortonian overland flow occurs in a

This more commonly occurs in arid and semi-arid regions, where rainfall intensities are high and the soil infiltration capacity is reduced because of surface sealing , or in paved areas. overland flow is a dominant process. This also happens when the top soil is frozen. In most humid regions, subsurface storm flow and saturation overland flow are dominant processes. Where the soils are well-drained, deep and very permeable, the water table is deep and the saturated zone is confined to the valley floor. Saturation overland flow is 5.2 Infiltration Excess Overland Flow This type of runoff generation is also called Hortonian or Horton overland flow, and is the basic tool of engineering hydrology, particularly for urban storm water hydrology. The concept can be best demonstrated using the infiltration theory from pages 36-39.

The results show that the crust hydraulic conductivity is 10 times lower than that of the subsoil, thus illustrating the limiting role the crust has on infiltration. Moving up to the plot scale, a rainfall-runoff model coupling the Richards equation to a transfer function is used to simulate Hortonian overland flow hydrographs.

Infiltration capacity decreases as the soil gets wet. Overland flow occurs when rainfall intensity exceeds infiltration capacity. Rainfall, runoff Oct 30, 2020 infiltration and storage capacities, such as Hortonian overland flow (HOF), saturated overland flow. (SOF), sub-surface flow (SSF), and deep Jul 12, 2002 Abstract Hortonian runoff was measured in the laboratory from uniform slopes of lengths of 1·5, 3·0, and 6·0 m for steady, high‐intensity Sep 25, 2007 Abstract There is a growing opinion that poorly managed plantation forests in Japan are contributing to increased storm runoff and erosion. water flux over the earth's surface; mostly streamflow since overland flow is partial-area concept was introduced, whereby Hortonian overland flow occurs in a Hortonian overland flow. Although Horton postulated that overland flow place llnlU"''-''el in basin when rainfall intensity exceeds infiltration capacity, it is clear Affected by climate, land cover, soil type, etc. Streamflow generation.

Flowoff Models17 jingling.