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Wednesday, July 22, 2020 | History

2 edition of Contributions to quick runoff in a headwater catchment found in the catalog.

Contributions to quick runoff in a headwater catchment

Mike McCaig

Contributions to quick runoff in a headwater catchment

the role of natural pipes and soil macro-pores.

by Mike McCaig

  • 57 Want to read
  • 36 Currently reading

Published by School of Geography, University of Leeds in Leeds .
Written in English


Edition Notes

SeriesWorking paper / School of Geography, University of Leeds -- 300
ID Numbers
Open LibraryOL13778142M

Water Harvesting Calculations Water Harvesting Calculations, Appendix 3 of Rainwater Harvesting for Drylands and Beyond, Vol. 1; Rainwater Harvesting Nomogram for Tucson, Arizona This diagram and a ruler can determine optimal sizes of rainwater tanks and/or catchment (roof) surfaces needed to meet desired amounts (in gallons) of available stored rainwater per day throughout year. runoff from a catchment area (CA) and delivering it to a cropped area (CB). In some areas where large volume of runoff takes a longer time flowing and it is utilized for crop production is referred to as supplementary or spate irrigation The main distinction micro and macro is File Size: KB.

The change in river flows at the basin scale reflects the combined influences of changes in various environmental factors associated with climatic and underlying surface properties. Distinguishing the relative contribution of each of these factors to runoff change is critical for sustainable water resource management, but it is also by: 2. L. Palazón et al.: Evaluating the importance of surface soil contributions to identify soils which generate sediment and (2) to use composite fingerprinting properties to identify the principal sources of sediment delivered to the reservoirs. 2 Study area The Benasque catchment is located within the Posets-Cited by:

First, silt from construction site runoff choked the stream. Next, telltale signs of gas and oil runoff from new streets appeared. The stench of sewage became common. Water quality had gone from good to terrible in a matter of months. Like most people, I thought . Simple, straightforward methods of calculating runoff can tell you the amount of water that storms bring to the earth. For a given surface area such as a roof or yard, multiply the area by the inches of rainfall and divide by to obtain the runoff in gallons. The factor comes from the fact that the volume of 1 gallon equals cubic.


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Contributions to quick runoff in a headwater catchment by Mike McCaig Download PDF EPUB FB2

Upland headwater catchments – special significance for river systems Basic headwater catchment dynamics, in nature and with human influence Catchment ‘connectivity’ and runoff The headwater sediment system and ‘hydromorphology’ Floods – key events in catchment dynamics 2. Scale effects on headwater catchment runoff timing, flow sources, and groundwater-streamflow relations Brian L.

McGlynn,1 Jeffrey J. McDonnell,2 Jan Seibert,3 and Carol Kendall4 Received 16 July Contributions to quick runoff in a headwater catchment book revised 2 March ; accepted 22 April ; published 28 July [1] The effects of catchment size and landscape organization on runoff.

We examined the effect of forest thinning on runoff generation at plot and catchment scales in headwater basins draining a Japanese cypress (Chamaecyparis obtusa) removed % of the stems (corresponding to % of the basal area) in the treated headwater basin (catchment M5), and left the control catchment (M4) by: Threshold Changes in Storm Runoff Generation at a Till-Mantled Headwater Catchment Article (PDF Available) in Water Resources Research 46(7) July with Reads How we measure 'reads'.

Organizing groundwater regimes and response thresholds by soils: A framework for understanding runoff generation in a headwater catchment John P.

Gannon1,2, Scott W. Bailey3, and Kevin J. McGuire4 1Department of Forest Resources and Environmental Conservation, Virginia. Water flow processes in weathered granitic bedrock and their effects on runoff generation in a small headwater catchment Ken’ichirou Kosugi,1 Shin’ya Katsura,1 Masanori Katsuyama,2 and Takahisa Mizuyama1 Received 24 May ; revised 7 October ; accepted 14 Cited by: • This hydrograph (total runoff in m3/s every 10 min) from a 15 mm rainfall that fell during 10 min was observed on a ha catchment.

• a) How large was the base flow. • b) How much was the direct runoff in m3. • c) What was the effective rainfall in mm. • d) How large were the losses in mm?File Size: KB. The relationship between land landscape and water quality has been a hot topic, especially for researchers in headwater catchment, because of drinking water safety and ecological protection.

In this study, Lita Watershed, a typical headwater catchment of Southeast China, was selected as the study area. During andwater samples were collected from 18 sampling points every month, and Author: Kaiyan Zhao, Huawu Wu, Wen Chen, Wei Sun, Haixia Zhang, Weili Duan, Wenjun Chen, Bin He.

Catchment runoff can usually be modeled as a linear reservoir. q = f (h) = h/T (4) where T = reservoir time constant. Sometimes, maybe more usual, but less good from an understanding point of view, the reservoir constant is defined as 1/ Size: KB.

Introduction [2] One of the great challenges facing catchment hydrology has been the discontinuity between processes observed at the plot or hillslope scale and the integrated effect of processes at the scale of the small catchment [Bonell, ; Kirchner, ; Sivapalan, ; Tetzlaff et al., ].Of particular importance has been linking observed runoff‐generating mechanisms with the Cited by: 1.

Introduction. Much of our current understanding of runoff generation processes in tropical systems has been produced from research in catchments of the humid tropics (Bonell and Bruijnzeel,Levia et al.,Farrick and Branfireun, ).While it is generally recognised that rapid flow processes dominate runoff in forested tropical catchments, the specific water flowpaths, source Cited by: A drainage basin is any area of land where precipitation collects and drains off into a common outlet, such as into a river, bay, or other body of drainage basin includes all the surface water from rain runoff, snowmelt, hail, sleet and nearby streams that run downslope towards the shared outlet, as well as the groundwater underneath the earth's surface.

Effects of weathered granitic bedrock on runoff processes in a small headwater catchment Tensiometer Responses Figure 4c shows rapid and peaky responses of pore water pressures over the weathered bedrock at the points T1 through T3, which can be attributable to the small soil thicknesses at. Runoff coefficient is a dimensionless factor that is used to convert the rainfall amounts to runoff.

It represents the integrated effect of catchment losses and hence depends upon the nature of land surface, slope, degree of saturation, and rainfall intensity. • Runoff coefficients, listed in for urban and rural watersheds and others apply to storms of two-year, five-year, and year frequencies.

Higher frequency storms require modifying the runoff coefficient because infiltration and other abstractions have a proportionally smaller effect on runoff. Adjust theFile Size: 1MB. 2 mm/yr and a mean annual runoff (MAR) of 96 mm.

The Musengezi river catchment has a MAP of mm, evaporation rate of 2 mm/yr and a MAR of mm (Garedondo, ). Maximum rainfall is recorded from December to February aver-aging approximately mm in Luangwa river catchment withCited by: 3.

Sub-catchments: The sub-catchment is the basic spatial unit, which is then divided into hydrological response units (or functional units) based on a common response or behaviour such as land use.

Within each functional unit, three models can be assigned: a rainfall-runoff model, a constituent generation model and a filter model. Isotope hydrograph separations determined by simple conservative-mixing models have shown repeatedly, in a variety of climactic and hydrogeologic environments, that streamflow generated during rainfall or snowmelt is derived primarily from water stored in the catchment prior to the event, a surprising insight that has profoundly changed how hydrologists view the runoff process.

Quick Glance at Runoff Runoff is the part of the water cycle in which the water flows over the land as surface water rather than be absorbed into groundwater or evaporating. Here we have analyzed water clarity and nutrient concentrations and loads for a year period in a headwater catchment within the western Waikato region, New Zealand.

For the first 6 years, the entire catchment was used for hill-country cattle and sheep grazing. An integrated catchment management plan was implemented whereby cattle were Cited by:.

A runoff model is a mathematical model describing the rainfall–runoff relations of a rainfall catchment area, drainage basin or precisely, it produces a surface runoff hydrograph in response to a rainfall event, represented by and input as a other words, the model calculates the conversion of rainfall into runoff.

A well known runoff model is the linear reservoir.Columbia Basin RUNOFF - Water Year KAF (Thousand Acre-Feet) 30 Year Average Based on Sources and mechanisms of nutrient transport in lawn irrigation driven surface runoff are largely unknown.

We investigated the transport of nitrogen (N) and phosphorus (P) in lawn irrigation driven surface runoff from a residential neighborhood (28 ha) of 56% impervious and 44% pervious areas. Pervious areas encompassing turfgrass (lawns) in the neighborhood were irrigated with the reclaimed Cited by: