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
12
Basic data
Records of observations and/or measurements of physical facts, occurrences and conditions, as they occur excluding there from any material or information developed by means of computation or estimation......
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13
Derived data
Records of observations and measurements of physical facts, occurrences and conditions developed from `basic data` by standard methods of computation and estimation......
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910
Coefficient of permeability, Hydraulic conductivity, Coefficient of conductivity, Unit of permeability, Transmission constant, Coefficient of transmission
1   The rate at which groundwater flows through a soil in response to a given hydraulic head. 2   The rate of flow of a fluid through a unit cross section of a porous mass under a unit hydraulic gradient, at a specified temperature. 3 - See 6497......
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970
Spatial data
Data linked to a specific point, area or volume in space, e.g. the spatial distribution of rainfall.
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4003
Conveyance losses, Transmission losses, Total losses, or Canal losses
The total losses by percolation and evaporation in a canal system, a branch, a distributary channel or a defined part thereof, exclusive of all designed draw-offs. Also referred to as `total losses` or `canal losses`. (See. 4898)......
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4140
Synthetic depth/damage data
Data produced through a synthesis of information on past flood damage rather than from an actual flood event.
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4898
Conveyance losses, or Transmission losses
1 - Losses of water in transit from the source of supply to the point of service whether in natural channels or in artificial ones, such as canals, distributaries, ditches, or watercourses. They comprise evaporation from the water surface, seepage, and incidental transpiration by vegetation growing in the water or along the banks of natural channel.....
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6178
Supervisory Control and Data Acquisition (SCADA) system
A software system employed from a central location (master station) over a communication system linking the master station to hardware at remote stations using programmable logic controllers......
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6280
On-line data processing
The complete operation of the demodulation or demultiplexing, linearization, and automatic computation of data as it is being received......
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6298
Ground data, or Ground truth
Information obtained on surface/subsurface features using on-site instruments or observations as an aid in calibration and interpretation of remotely sensed data......
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6330
Data transmission
The sending of data from one place to another, or from one part of the system to another.
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6340
Transmission link
A component of an automatic system of transmission of measured data utilizing one or more of the available transmission facilities, such as commercial telephone or telegraph lines, direct radio links, or satellite retransmission systems......
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8129
Digital data
Information represented by a code consisting of a sequence of discrete elements.
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8272
Real-time data
Time-dependent data processed by a computer whose output data is capable of controlling other time-related events, such as traffic control. Real time is the actual time it takes for an event to occur......
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8277
Relational database
Set of data where all the items are related.
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8443
Data encryption
Transformation of data into unreadable, meaningless data through a cryptographic transformation using key. Decryption turns unintelligible data into meaningful data using a key......
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8444
Database
A collection of structured information for creating a specific format out of some, or all, of the collected data.
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8663
Sensitivity of solution to data variation
The difference in economic and extra-economic efficiency between a deterministic type of solution based on `design values` and a solution worked out for envelopes of the confidence range. In such a sensitivity analysis, extreme values of one variable might be combined with average values of other variables, or, alternatively, with their extremes. T.....
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8883
Hydrological data
In reference to water resources development, this term refers to data on precipitation, river stages, river discharges, sediment transportation, yield and storage of groundwater, evapotranspiration, valley storage, maximum flood levels and discharges and the quality of water as well as other related meteorological data, such as temperature......
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8887
Physical data
In reference to planning and development of water resources projects, this term includes hydrological and topographical information, cadastral survey, geology of the area and data on soils, sedimentation, vegetation, fish and wildlife......
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8888
Socio-economic data
In reference to planning and development of water resources project, this term includes overall basic economic data (population distribution, income, employment, production) and functional data, such as those relating to agriculture, forestry, fishing and trapping, manufacturing, mining, recreation, transportation, power demand, damages from floods.....
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