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Descriptor English: Weirs
Descriptor Spanish: Vertederos
Descriptor Portuguese: Vertedores
Descriptor French: Seuil (Barrage)
Entry term(s): Low Head Dam
Low Head Dams
Overflow Channel
Overflow Channels
Spillway
Spillways
Weir
Tree number(s): SP4.021.197.123.579.500
Scope note: 1. A relatively low barrier built tranversely for impounding, regulating, deriving, or measuring the runoff. 2. A weir or low head dam is a barrier across the width of a river that alters the flow characteristics of water and usually results in a change in the height of the river level. (https://en.wikipedia.org/wiki/Weir)
Allowable Qualifiers: AE adverse effects
AN analysis
CL classification
EC economics
EH ethnology
ES ethics
HI history
LJ legislation & jurisprudence
MT methods
PC prevention & control
PL policies
SN statistics & numerical data
DeCS ID: 25638
Unique ID: DDCS025638
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Weirs - Preferred
Concept UI FD00058482
Scope note 1. A relatively low barrier built tranversely for impounding, regulating, deriving, or measuring the runoff. 2. A weir or low head dam is a barrier across the width of a river that alters the flow characteristics of water and usually results in a change in the height of the river level. (https://en.wikipedia.org/wiki/Weir)
Preferred term Weirs
Entry term(s) Low Head Dam
Low Head Dams
Weir
Spillways - Narrower
Concept UI FD00063091
Scope note 1. A spillway is a structure used to provide the controlled release of flows from a dam or levee into a downstream area, typically the riverbed of the dammed river itself. In the United Kingdom, they may be known as overflow channels. Spillways ensure that the water does not overflow and damage or destroy the dam. (From: https://en.wikipedia.org/wiki/Spillway). 2. A path designed to take away overflow safely. (From: https://en.wiktionary.org/wiki/spillway)
Preferred term Spillways
Entry term(s) Overflow Channel
Overflow Channels
Spillway



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