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

Multilingual Technical Dictionary (MTD)
<<    Browsing page 1 of 4    >>
Term No.Term Name/Term DescriptionAction
856
Direct runoff
The sum of surface runoff, interflow and channel precipitation.
Similar Terms
861
Bank storage
Water absorbed and stored in the bed and banks of a stream, lake, or reservoir as the surface level of the water body rises and returned in whole or in part as the surface level falls......
Similar Terms
955
Bankfull, or Bankfull stage
The stage attained by a stream when flowing at a capacity above which the natural banks overflow.
Similar Terms
1194
Direction peg
A point on the direction peg line through which a ray from one of the observation points passes when converging on the pivot point (illustrated)......
Similar Terms
1195
Direction peg line
The line parallel to the discharge section line on which the direction pegs are located (illustrated).
Similar Terms
1220
Direction float
A standard float of metal or wood carrying a small flag used for indicating the direction of flow of a river so that the angle that direction of flow makes with the discharge section line at any observation point may be measured......
Similar Terms
1427
Concave (river) bank
The bank on the outside of a river bend. The radius of a concave bank is generally greater than that of the convex bank.
Similar Terms
1428
Convex (river) bank
The bank on the inside of a river bend (vs. concave bank).
Similar Terms
1455
Bankful discharge
Discharge corresponding to the state at which the river berms are about to be submerged.
Similar Terms
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......
Similar Terms
1500
Fending groyne, or Bankhead
Groyne which fends the current of flow of water and prevents erosion. Denehy`s groyne is an example of this type (illustrated)......
Similar Terms
1507
Stem bank, or Shank
Embankment connecting a groyne head to the river bank or marginal bund (illustrated).
Similar Terms
1524
Retired embankment
An embankment built at a distance from the river edge behind an existing embankment as a second line of defence. (illustrated)......
Similar Terms
1526
Bank sluice
An opening controlled by shutters or gates in the marginal embankment which are opened during high floods.
Similar Terms
1527
Guide bank, or Bell`s bund
A protective or training embankment constructed at the side of a weir, bridge, etc., to guide the river into the waterway in the structure; named after Mr. J.R. Bell who designed such bunds (illustrated)......
Similar Terms
1533
Bank protection
1 - A kind of engineering work which aims at protecting the banks of a river, or slopes of embankments along it, from erosion by the current of flow. 2 - See 7986......
Similar Terms
1534
Bank revetment
A type of bank protection continuously covering the entire slope of a bank or an embankment, including the portions extending far into the river bed, to protect the bank from erosion. Bank revetment somewhat resembles canal lining, the difference being that the latter aims at stopping or lessening the seepage of water from a canal into the ground, .....
Similar Terms
1535
Bank paving
The part of revetment extending from the mattress to the top of the banks. See 1544.
Similar Terms
1537
Upper bank
The portion of the river bank that is located above the low water level and below the foreshore level. See 1538.
Similar Terms
1538
Lower bank
The portion of a bank below low water level often extending quite a distance horizontally to the river bed. See 1537.
Similar Terms
1539
Direct bank protection
Kind of works on the bank itself, such as slope protection of embankment and upper bank and toe protection of lower bank against erosion, and grading of sloping surface or provision of drainage layers, to ensure stability against seepage and saturation......
Similar Terms
1540
Slope protection
Riprap, paving, pitching, revetment, brush or other material laid or placed for protection on the sloping part of an embankment or levee or sea shore, to prevent erosion, slipping or caving, or to withstand external hydraulic pressure......
Similar Terms
1541
Toe protection
Loose stones laid or dumped at the toe of an embankment, groyne, etc., or masonry or concrete wall built at the junction of the slope of pitching and the bed in channels or at extremities of hydraulic structures to counteract erosion......
Similar Terms
1542
Indirect bank protection
Kind of works that are not constructed directly on the banks but in front of them with a view to reduce the erosive force of the current either by deflecting the current away from the banks or by inducing deposition in front of them......
Similar Terms
1568
Hen-cooping, or A-frame protection
A cribwork used in Australia for bank protection, made of three lots of logs with their ends meeting so as to form a triangular tunnel which is filled with stones......
Similar Terms
<<    Browsing page 1 of 4    >>