International Commission on Irrigation & Drainage Commission Interationale des Irrigation et du Drainage

Multilingual Technical Dictionary (MTD)
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Term No.Term Name/Term DescriptionAction
923
Unit hydrograph, or Unit graph (USA)
Hydrograph of direct runoff resulting from a unit amount of effective rainfall generated uniformly over a watershed during a specified duration......
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1181
Gauge, or Gage (USA)
An instrument, contrivance, graduated scale or other device installed at a gauging station for observing or recording the stage of a stream......
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1484
Groyne, Groin, Bankhead, Spur, Spur dike, Transverse dike, Jetty
1 - A structure built from the bank of a river in a direction transverse to the current. The groynes may be permeable, semi-permeable or impermeable. 2 - See 3479 and 8028......
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1523
Natural levees
High banks formed along the channel edges during high floods due to silting along the banks.
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2077
Levee
1 - A dike or embankment along a river to protect land from inundation. 2 - See 8013
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2222
Wing levee, Afflux bund, or Afflux bank
An embankment or dike designed to prevent the outflanking of the abutment by flood waters passing round the end of the weir, extending up to, but not across, the whole of the river flood plain......
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4130
Levee district, District water board, or Water board of polder
The organization established in accordance with law for the purpose of construction and maintenance of levees.
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4617
Fall irrigation (USA)
Watering carried out just after harvesting the summer crop to restore the soil to the desired moisture status.
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4618
Winter irrigation (USA)
Watering carried out before the crop growing period in order to increase the water reserve of the soil.
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4619
Early irrigation (USA)
Watering carried out well in advance of planting if the moisture in the soil is not adequate to carry out the soil preparation process......
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5316
Dyke, Dike, Embankment, or Levee (USA)
A bank that protects land from inundation by flood waters.
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7977
Levee, Floodwall
A long, narrow, earthen embankment usually built to protect land from flooding. If built of concrete or masonry the structure is referred to as a floodwall......
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7985
Back of levee, Air side of levee, Land side of levee, Outflow side of levee, Inner side of levee, Polder side of levee, or Down stream side of levee
The side of a levee away from the river, facing the protected area.
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7995
Agricultural levees
Works protecting agricultural land from floods.  
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8013
Flood levee, Levee, Main Levee, Embankment, Stop bank, Dyke, Dike, Summer dike, Confinement dike, Ring dike, or Bund
1 - An artificial trapezoidal earthwork structure built along a river for the purpose of protecting adjacent land or human settlements from inundation by flood waters. The most ancient, most widespread method of flood protection. Flood levees are linear structures along a river which have the purpose of confining waters spilling from the mean-water.....
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8015
Fuseplug levee
A low and weak section of levee which, when once overtopped, will wash out rapidly and develop full discharge capacity into the floodway in order to reduce the damage caused by the flood......
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8017
Main levee
Levee protecting areas of great economic value (industry, agriculture, etc.). These are required to offer protection for the required degree of safety against all floods passing down the river or stream (illustrated)......
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8028
Spur, Spur dike, Groyne, or Transverse dike
1-A structure of stone, rock, timber, brushwood, pile, earth, or other materials, built from the bank of a stream traversing to the current for training the flow of water, for bank protection, for fixing a navigable channel or for trapping bedload to build up new river banks. The spur may be permeable, semi-impermeable or impermeable. 2 - See also .....
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8030
Submersible embankments (levee, dyke, dike)
Embankments along rivers that have been designed in such a way that their overtopping does not produce significant damage. Submersible embankments are constructed in the Southeastern Asian monsoon zones to check early monsoon floods so that one more crop can be grown and the negative side-effects of full flood protection can be avoided......
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