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

Multilingual Technical Dictionary (MTD)
<<    Browsing page 1 of 1    >>
Term No.Term Name/Term DescriptionAction
1170
Salt-dilution gauging
A method for the measurement of flow of water based upon the nearly linear relation between the concentration and the electrical conductivity of a salt solution, which makes it possible to determine the degree of dilution by integrating a conductivity time graph......
Similar Terms
1299
Tidal flats
Areas of nearly flat, barren mud periodically covered by tidal waters.
Similar Terms
1791
Soluble salts
Salts that dissolve in water; especially, the salts found in the soil solution.
Similar Terms
2145
Alkali flat
A sterile plain containing an excess of alkali, typically at the bottom of an underdrained basin in an arid region.
Similar Terms
2152
Per cent salt
This is the quantity of salt expressed as a percentage of the dry weight of the soil.
Similar Terms
2274
Inflatable weir
A weir constructed of neoprene reinforced with nylon and anchored to a concrete foundation. The weir inflates by water pressure and automatically deflates when the upstream water reaches a prescribed level......
Similar Terms
2341
Flat slab buttress dam, Flat deck dam, Deck dam, Slab and buttress dam, ,Fixed slab buttress dam, Fixed deck dam, Free deck dam, or Cantilever buttress dam
A dam usually of reinforced concrete consisting essentially of slabs supported by transverse buttresses. The load is taken by the slabs and transferred to the foundations through the buttresses. The slab may be (i) integrally cast with the buttresses, (ii) freely supported at the buttresses, or (iii) cantilevered from the buttresses. The dams are a.....
Similar Terms
2754
Flat-crested morning glory spillway
A circular spillway composed of three parts (i) sloping weir section, (ii) free falling section, and (iii) the vertical shaft section. The water is allowed to approach the crest of the free falling section, on a flat slope before beginning its free fall (illustrated)......
Similar Terms
3119
Saltation
Discontinuous motion of particles above the bed of a channel in series of short hops. Also refers to the same type of movement of soil particles over a land surface during wind erosion......
Similar Terms
3120
Saltation layer
The zone above the bed where the phenomenon of saltation occurs in flowing channel.
Similar Terms
3121
Saltation load
The material bouncing along the bed, or moved, directly or indirectly, by the impact of the bouncing particles.
Similar Terms
3122
Saltation load discharge
The amount of material moved in unit time due to saltation.
Similar Terms
3370
Insufflation, or Air entrainment
The phenomenon of entraining appreciable percentage of air by the sheet of flow passing with high velocities over chute or spillways......
Similar Terms
5479
Basalt
A compact igneous rock, of grey to black colour, consisting chiefly of lime-feldspar, augite and iron embedded in glass or crystallites......
Similar Terms
5907
Flat submerged formwork
Submerged formwork, prefabricated, consisting of wood, steel, or reinforced concrete panels and brace work.
Similar Terms
6224
Lay-flat pneumatic valve )
A flat, rectangular tube that, when inflated, forms a closure within the underground portion of a turnout pipe. It is secured to the turnout pipe at the upstream end and when deflated or in an open position conforms to the curvature of the lower half of the pipe wall......
Similar Terms
6456
Deflation
The complete removal of loose material by the wind leaving rocks exposed to continuous weathering.
Similar Terms
6459
Saltation
Wind and/or water erosion initiated by soil particles bouncing low over an unprotected surface.
Similar Terms
6765
Salt marsh
Similar to fresh (grass‑dominated) marsh, but adjacent to marine areas covered periodically (tidally or seasonally) with saline water......
Similar Terms
7682
Salt flat
The salt‑encrusted bottom of a desiccated lake.
Similar Terms
7734
Desalinization, or Desalting
Removing salt from ocean or brackish water by distillation, freezing, electrodialysis, reverse osmosis, or other means.
Similar Terms
7736
Salt water intrusion
The movement of salt water into subterranean aquifers.
Similar Terms
9138
Consolidated rate, or Flat rate
This is the water rate combined with the land revenue and is fixed on the settlement principle. It is charged on the irrigable area irrespective of the nature of crops grown......
Similar Terms
<<    Browsing page 1 of 1    >>