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2006-04-01 overland flow . unconfined runoff, expressed as discharge per unit width of slope ; Hortonian. saturation from above ; described by Horton in a series of papers in the '30s and '40s, where he suggested it was the principal, if not only, mechanism of overland flow and occurred on virtually all slopes 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. Related investigations suggested that energetic extremal principles might constrain hydrological processes, because the latter are associated with conversions and dissipation of free energy.

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Search for more and several modeling studies have examined the effects of this variability on Hortonian surface A simple technique is introduced to account for flow concentration in rills and the resulting reduced effective 111: Rainfall Excess Overland Flow ROGER E SMITH1 AND DAVID C GOODRICH2 1Civil Engineering Department, Colorado State University, Fort Collins, CO, US 2Southwest Watershed Research Center, ARS USDA, Tucson, AZ, US One of the processes that can generate surface runoff is rainfall excess, which is a process controlled at the Hortonian overland flow closure relations in the Representative Elementary Watershed Framework evaluated with observations By E. Vannametee, D. Karssenberg, M. R. Hendriks and M. F. P. Bierkens No static citation data No static citation data Cite Hortonian Overland Flow Saturated Overland Flow Sub-surface Flow Ground Water Flow. Very fast, energy waves, destructive Can be destructive CHAPTER FIVE Runoff Engineering Hydrology (ECIV 4323) Overland flow interflow Saturated overland flow Base flow 1 Instructors: Dr. Yunes Mogheir Dr. Ramadan.

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What are the most important factors influencing Hortonian overland flow generation and can they be traced back to the land-use type? 3. Does this lead to soil erosion processes and under which conditions? Sub-pixel scale effects of Hortonian overland flow Nick van de Giesen1, Tjeerd Jan Stomph1, and Nico de Ridder1 1.

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.
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Overland flow, which is examined here, is an important hydrological response to storms of a catchment. And it is also a main component of hillslope hydrology. Through controlling of rainfall intensities and changing of artificial slope angles, 49 overland flow hydrographs are obtained from rainfall-runoff simulation experiments conducted on a manmade hillside. overland flow may occur in localized areas within the catchment; partial-area concept. Horton overland flow is rare in vegetated humid region. It is common in areas devoid of vegetation such as; - semi-arid rangelands - compacted soil, e.g. logging roads - paved urban area, e.g.

It is more pronounced in arid regions where soils are thin and without vegetation and the underlying rocks are usually impermeable. An overland flow of water occurring more or less simultaneously over a drainage basin when rainfall intensity exceeds the rate of water infiltration in the soil (Horton (1933) Trans. Am. Geophys. Union 14; Kirkby (1988) J. Hydrol. 100). See also Vigiak et al.
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Does this lead to soil erosion processes and under which conditions? 2007-05-01 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. 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.

We will show that the latter causes a trade -off in the potential energy of overland flow as a n increasing mass of water flows along a continuously declining geopotential. These antagonistic effects imply that potential 95 energy of overland flow peaks at a distinct point in space along the hillslope. 2007-04-15 Hortonian overland flow. Although Horton postulated that overland flow place llnlU"''-''el in basin when rainfall intensity exceeds infiltration capacity, it is clear that it can oecur in soil-covered basins under rainfall intensities which are less than the infiltration,~0'''''f'.ht Overland flow or surface run off on a saturated hill side. Can Hortonian overland flow generation be observed on all land-use types in the investigated areas in the Central European low mountain range?
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3. They increase northward due to increasing of slope, elevation and rate of precipitation that generate Hortonian overland flow, which is due to high discharge and  Nr nederbrdsintensiteten verstiger f (t) rinner nederbrden av p ytan med s kalla Hortonian overland flow. Nr detta sker p grund av frndringar av markfuktigheten  Flotek Industries Inc · Flow Traders Cooperatief UA · Flower One Holdings Inc · Flowers Foods Inc · Flowgroup PLC · Flowserve Corp · Flowtech Fluidpower plc  A small cave from which a good spring flows about 4 miles west of Hunter.

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Search for more papers by this author. R. E. Smith. overland flow . unconfined runoff, expressed as discharge per unit width of slope ; Hortonian. saturation from above ; described by Horton in a series of papers in the '30s and '40s, where he suggested it was the principal, if not only, mechanism of overland flow and occurred on virtually all slopes Can Hortonian overland flow generation be observed on all land-use types in the investigated areas in the Central European low mountain range? 2.

Therefore our field measurements in both small and large plots potentially included biomat flow in addition to short‐lived Hortonian runoff.