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Balancing Lake
A balancing lake (also flood basin or Sustainable urban drainage scheme) is a term used in the U.K. describing an element of an urban drainage system used to control flooding by temporarily storing flood waters. The term balancing pond is also used, though typically for smaller storage facilities for streams and brooks. In open countryside, heavy rainfall soaks into the ground and is released relatively slowly into watercourses (ditches, streams, rivers). In an urban area, the extent of hard surfaces (roofs, roads) means that the rainfall is dumped immediately into the drainage system. If left unchecked, this will cause widespread flooding downstream. The function of a balancing lake is to contain this surge and release it slowly. Failure to do this, especially in older settlements without separate storm sewers and foul sewers, can cause serious pollution as well as flooding. Engineering At its simplest, a balancing lake can be constructed by creating a dam across a drain ...
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Priorslee Lake - Geograph
St George's and Priorslee is a civil parish in the borough of Telford and Wrekin, Shropshire, England. St. George's and Priorslee are suburbs of Telford. The parish had a population of 11,033 at the 2011 census, and has an area of . The parish lies northeast of the Telford Town Centre and east of the town of Oakengates. The A5 runs through the area, and junction 4 of the M54 motorway is just to the south. The Priorslee area of Telford contains the Priorslee Campus of the University of Wolverhampton. At the centre of the Priorslee Campus is the grade II listed eighteenth century Priorslee Hall. The Priorslee area is also the site of major housing developments concentrating some of the more expensive housing in the town of Telford. There is also a primary school and a secondary school ( Holy Trinity Academy). Priorslee is also famous for the Lion public house, on the Shifnal Road behind Priorslee Village. There is a parish council, the lowest tier of local government. The ...
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River Great Ouse
The River Great Ouse () is a river in England, the longest of several British rivers called "Ouse". From Syresham in Northamptonshire, the Great Ouse flows through Buckinghamshire, Bedfordshire, Cambridgeshire and Norfolk to drain into the Wash and the North Sea near Kings Lynn. Authorities disagree both on the river's source and its length with one quoting and another . Mostly flowing north and east, it is the fifth longest river in the United Kingdom. The Great Ouse has been historically important for commercial navigation, and for draining the low-lying region through which it flows; its best-known tributary is the Cam, which runs through Cambridge. Its lower course passes through drained wetlands and fens and has been extensively modified, or channelised, to relieve flooding and provide a better route for barge traffic. The unmodified river would have changed course regularly after floods. The name ''Ouse'' is from the Celtic or pre-Celtic *''Udso-s'', and probably me ...
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Sustainable Urban Drainage Systems
Sustainable drainage systems (also known as SuDS,Sustainable Drainage System (SuDs) for Stormwater Management: A Technological and Policy Intervention to Combat Diffuse Pollution
Sharma, D., 2008
SUDS, or sustainable urban drainage systems) are a collection of practices that aim to align modern drainage systems with natural water processes and are part of ...
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Urban Runoff
Urban runoff is surface runoff of rainwater, landscape irrigation, and car washing created by urbanization. Impervious surfaces (roads, parking lots and sidewalks) are constructed during land development. During rain , storms and other precipitation events, these surfaces (built from materials such as asphalt and concrete), along with rooftops, carry polluted stormwater to storm drains, instead of allowing the water to percolate through soil. This causes lowering of the water table (because groundwater recharge is lessened) and flooding since the amount of water that remains on the surface is greater.Water Environment Federation
Alexandria, VA; an
American Society of Civil Engineers
Reston, VA

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Surface Runoff
Surface runoff (also known as overland flow) is the flow of water occurring on the ground surface when excess rainwater, stormwater, meltwater, or other sources, can no longer sufficiently rapidly infiltrate in the soil. This can occur when the soil is saturated by water to its full capacity, and the rain arrives more quickly than the soil can absorb it. Surface runoff often occurs because impervious areas (such as roofs and pavement) do not allow water to soak into the ground. Furthermore, runoff can occur either through natural or man-made processes. Surface runoff is a major component of the water cycle. It is the primary agent of soil erosion by water. The land area producing runoff that drains to a common point is called a drainage basin. Runoff that occurs on the ground surface before reaching a channel can be a nonpoint source of pollution, as it can carry man-made contaminants or natural forms of pollution (such as rotting leaves). Man-made contaminants in runoff i ...
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Stormwater
Stormwater, also spelled storm water, is water that originates from precipitation (storm), including heavy rain and meltwater from hail and snow. Stormwater can soak into the soil ( infiltrate) and become groundwater, be stored on depressed land surface in ponds and puddles, evaporate back into the atmosphere, or contribute to surface runoff. Most runoff is conveyed directly as surface water to nearby streams, rivers or other large water bodies (wetlands, lakes and oceans) without treatment. In natural landscapes, such as forests, soil absorbs much of the stormwater. Plants also reduce stormwater by improving infiltration, intercepting precipitation as it falls, and by taking up water through their roots. In developed environments, such as cities, unmanaged stormwater can create two major issues: one related to the volume and timing of runoff (flooding) and the other related to potential contaminants the water is carrying (water pollution). In addition to the pollutants carr ...
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Canada Geese
The Canada goose (''Branta canadensis''), or Canadian goose, is a large wild goose with a black head and neck, white cheeks, white under its chin, and a brown body. It is native to the arctic and temperate regions of North America, and it is occasionally found during migration across the Atlantic in northern Europe. It has been introduced to the United Kingdom, Ireland, Finland, Sweden, Denmark, New Zealand, Japan, Chile, Argentina, and the Falkland Islands. Like most geese, the Canada goose is primarily herbivorous and normally migratory; often found on or close to fresh water, the Canada goose is also common in brackish marshes, estuaries, and lagoons. Extremely adept at living in human-altered areas, Canada geese have established breeding colonies in urban and cultivated habitats, which provide food and few natural predators. The success of this common park species has led to its often being considered a pest species because of its excrement, its depredation of crops, its ...
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Northern Lapwing
The northern lapwing (''Vanellus vanellus''), also known as the peewit or pewit, tuit or tew-it, green plover, or (in Ireland and Britain) pyewipe or just lapwing, is a bird in the lapwing subfamily. It is common through temperate Eurosiberia. Behaviour It is highly migratory over most of its extensive range, wintering further south as far as North Africa, northern India, Nepal, Bhutan and parts of China. It migrates mainly by day, often in large flocks. Lowland breeders in westernmost areas of Europe are resident. It occasionally is a vagrant to North America, especially after storms, as in the Canadian sightings after storms in December 1927 and in January 1966. It is a wader that breeds on cultivated land and other short vegetation habitats. 3–4 eggs are laid in a ground scrape. The nest and young are defended noisily and aggressively against all intruders, up to and including horses and cattle. In winter, it forms huge flocks on open land, particularly arable land a ...
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Common Redshank
The common redshank or simply redshank (''Tringa totanus'') is a Eurasian wader in the large family Scolopacidae. Taxonomy The common redshank was formally described by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his ''Systema Naturae'' under the binomial name ''Scolopax totanus''. It is now placed with twelve other species in the genus ''Tringa'' that Linnaeus had introduced in 1758. The genus name ''Tringa'' is the New Latin name given to the green sandpiper by the Italian naturalist Ulisse Aldrovandi in 1603 based on Ancient Greek ''trungas'', a thrush-sized, white-rumped, tail-bobbing wading bird mentioned by Aristotle. The specific ''totanus'' is from , the Italian name for this bird. Six subspecies are recognised: * ''T. t. robusta'' ( Schiøler, 1919) – breeds in Iceland and the Faroe Islands; non-breeding around the British Isles and west Europe * ''T. t. totanus'' (Linnaeus, 1758) – breeds in west, north Europe to west Siberia; winters in ...
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Little Ringed Plover
The little ringed plover (''Charadrius dubius'') is a small plover. The genus name ''Charadrius'' is a Late Latin word for a yellowish bird mentioned in the fourth-century Vulgate. It derives from Ancient Greek ''kharadrios'' a bird found in river valleys (''kharadra'', "ravine"). The specific ''dubius'' is Latin for doubtful, since Sonnerat, writing in 1776, thought this bird might be just a variant of common ringed plover. Description Adult little ringed plovers have a grey-brown back and wings, a white belly and a white breast with one black neckband. They have a brown cap, a white forehead, a black mask around the eyes with white above and a short dark bill. The legs are flesh-coloured and the toes are all webbed. This species differs from the larger ringed plover in leg colour, the head pattern, and the presence of a clear yellow eye-ring. Gallery Little Ringedplover by Sreedev Puthur.jpg, Little Ringed Plover Little ringed plover3.jpg, Little ringed plover in Kannur, K ...
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Ringed Plover
The common ringed plover or ringed plover (''Charadrius hiaticula'') is a small plover that breeds in Arctic Eurasia. The genus name ''Charadrius'' is a Late Latin word for a yellowish bird mentioned in the fourth-century Vulgate. It derives from Ancient Greek ''kharadrios'' a bird found in ravines and river valleys (''kharadra'', "ravine"). The specific ''hiaticula'' is Latin and has a similar meaning to the Greek term, coming from ''hiatus'', "cleft" and ''-cola'', "dweller" (''colere'', "to dwell"). Description Adults are in length with a wingspan. They have a grey-brown back and wings, a white belly, and a white breast with one black neckband. They have a brown cap, a white forehead, a black mask around the eyes and a short orange and black bill. The legs are orange and only the outer two toes are slightly webbed, unlike the slightly smaller but otherwise very similar semipalmated plover, which has all three toes slightly webbed, and also a marginally narrower breast band ...
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Tufted Duck
The tufted duck or tufted pochard (''Aythya fuligula'') is a small diving duck with a population of close to one million birds, found in northern Eurasia. The scientific name is derived from Ancient Greek '' aithuia'', an unidentified seabird mentioned by authors including Hesychius and Aristotle, and ''Latin'' ''fuligo'' "soot" and ''gula'' "throat". Description The adult male is all black except for white flanks and a blue-grey bill with gold-yellow eyes, along with a thin crest on the back of its head. It has an obvious head tuft that gives the species its name. The adult female is brown with paler flanks, and is more easily confused with other diving ducks. In particular, some have white around the bill base which resembles the scaup species, although the white is never as extensive as in those ducks. The females' call is a harsh, growling "karr", mostly given in flight. The males are mostly silent but they make whistles during courtship based on a simple "wit-oo". The onl ...
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