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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. Hortonian Overland Flow, Hillslope Morphology and Stream Power I: Spatial Energy Distributions and Steady-state Power Maxima February 2021 DOI: 10.5194/hess-2021-79 8tracks radio. Online, everywhere. - listen to the first hortonian overland flow playlisthortonian overland flow including Angel Olsen, Best Coast, and Beyoncé music from your desktop or mobile device. Hortonian overland flow closure relations in the Representative Elementary Watershed Framework evaluated with observations February 2013 Hydrology and Earth System Sciences Discussions 10(2):1769-1817 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 2018-04-03 · Ziegler, Alan D Tran T. Liem Tran Duc Vien We use a hydrology-based fragmentation index to explore the influence of land-cover distribution on the generation and buffering of Hortonian overland flow (HOF) in two disturbed upland basins in northern Vietnam (Tan Minh).

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The concept can be best demonstrated using the infiltration theory from pages 36-39. 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.

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Log in / Register. 0 Cart Horton overland flow. In soil science, Horton overland flow describes the tendency of water to flow horizontally across land surfaces when rainfall has exceeded infiltration capacity and depression storage capacity.

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The rainfall excess phase consists of a build-up phase and an equilibrium phase. Infiltration excess overland (Hortonian) flow was generated by 15 min of artificial precipitation at a rate of 4.2 mm min-1 which was roughly 2–3 times the saturated soil conductivity. To prevent algal growth in the soil a light oil instead of water was used. 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.

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Hortonian runoff was measured in the laboratory from uniform slopes of lengths of 1Ð5, 3Ð0, and 6Ð0 m for steady, high-intensity rainstorms with durations of 1Ð0 to 7Ð5 min. A clear reduction in runoff per unit slope length was found as slope lengths were increased. Effects of Spatial Variability of Saturated Hydraulic Conductivity on Hortonian Overland Flow. D. A. Woolhiser. 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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Hortonian overland flow

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. Hortonian overland flow. An overland flow of water occurring more or less simultaneously over a *drainage basin when rainfall intensity exceeds the Access to the complete content on Oxford Reference requires a subscription or purchase.

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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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. Center for Development Research, University of Bonn, Walter-Flex-Strasse 3, D-53113 Bonn, Germany 2. Wageningen University, Department of Plant Science, P.O.Box 341, 6700 AH Wageningen, The Netherlands Abstract.


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Wageningen University, Department of Plant Science, P.O.Box 341, 6700 AH Wageningen, The Netherlands Abstract. Read "A numerical model for simulating Hortonian overland flow on tropical hillslopes with vegetation elements, Hydrological Processes" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Hortonian runoff was measured in the laboratory from uniform slopes of lengths of 1Ð5, 3Ð0, and 6Ð0 m for steady, high-intensity rainstorms with durations of 1Ð0 to 7Ð5 min. A clear reduction in runoff per unit slope length was found as slope lengths were increased. Effects of Spatial Variability of Saturated Hydraulic Conductivity on Hortonian Overland Flow.

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• R. E. Saturation Excess Overland Flow occurs when the soil becomes saturated, and any additional precipitation or irrigation causes runoff. This type of runoff is the main mechanism behind VSA hydrology. To learn more about saturation excess overland flow, mechanisms for occurrence, and areas prone to saturation, read on. Check out our Saturation Excess Overland Flow animated slideshow. The frequency and the magnitude of debris flow occurrences decreased after October 1997 because of the recovery of the infiltration rate, the decrease in the frequency and the magnitude of the Hortonian overland flow, and the decrease in the area contributing to the Hortonian overland flow.

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