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
1051
Barrier spring
A spring that occurs when a raising of the confining bed forces the groundwater to rise to ground surface.
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1300
Wet beach
The area of a beach below the water line covered by ordinary wave water.
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1384
Sudd, or Sadd (Arabic : barrier or dam)
Large floating island of vegetative matter impending navigation on the Upper White Nile. Also an earthen embankment blocking a river or branch of a river or ring bund around a work under construction in the bed of a river......
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2067
Barrier beach
A bar essentially parallel to the shore, the crest of which is above normal high water level. Also called offshore barrier and barrier island......
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2068
Beach
The zone of unconsolidated material that extends landward from the low water line to a place where there is marked change in material or physiographic form, or to the line of permanent vegetation (usually the effective limit of storm waves). The seaward limit of a beach, unless otherwise specified, is the mean low water line......
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3331
Pitching, Revetment, or Beaching
1 - A protective covering of properly packed or built-in materials on the earthen surface slopes of irrigation canals, drainage channels, and river banks, etc., to protect them from the action of water. The more solid facing or retaining wall protection required in river or sea works is referred to as `revetment`, while `pitching` covers rip-rap an.....
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3332
Side pitching, or Side beaching
Pitching on the sides of the earthen canal sections, upstream and downstream sides (usually beyond the transitions) of canal structures, to protect them (sides) from the action of water......
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3333
Bed pitching, or Bed beaching
Pitching on the bed of the earthen canal sections, upstream and downstream sides (usually beyond the transitions) of canal structures for protection against light scouring action of water......
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3334
Warped pitching, or Warped beaching
Pitching on the upstream or downstream sides of hydraulic structures having warped surfaces.
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3335
Ribbed pitching, or Ribbed beaching
Pitching having a system of regular projections to offer greater friction to the flow.
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5396
Barrier (vertical)
An obstruction to the horizontal movement of groundwater.
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5397
Barrier (horizontal)
A natural obstruction to the vertical movement of groundwater. Usually a layer of impermeable rock or clay
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6451
Beach erosion
The retrogression of the upper line of large lakes and coastal waters caused by wave action, shore currents, or natural causes other than subsidence......
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7984
Storm surge barrier
Gated dam (also called barrage) in the mouth of an estuary or in the lower course of a river that is normally open, allowing tidal movement to take place and ships to pass and that is closed for short periods only in case a storm surge causing high water levels in the area is imminent......
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