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

Multilingual Technical Dictionary (MTD)
<<    Browsing page 1 of 19    >>
Term No.Term Name/Term DescriptionAction
156
Gamma distribution
The probability distribution of a continuous random variable x that can take any value from 0 to + ¥ with the probability density : .....
Similar Terms
157
Laplace-Gauss distribution,or Normal distribution
The probability distribution of a continuous random variable x such that, if x is any real number, the probability density is :.....
Similar Terms
158
Laplace-Gauss standardized distribution
The probability distribution of a pair of standardized normal variates. For a pair of normal variates (X, Y ) of parameters (mx , my) and (sx and sy) the corresponding standardized variates are .....
Similar Terms
162
Logarithmic normal distribution, or Lognormal distribution
If the logarithms of a set of variate values are distributed according to the normal distribution, the variate is said to have a logarithmic normal distribution, or be distributed lognormally......
Similar Terms
328
Semilogarithmic chart
Chart having equal spacing on one axis, usually X-axis, and logarithmic spacing on the other axis. Owing to a property by virtue of which the slope of the curve at any point is an exact measure of the rate of increase or decrease in the data plotted, frequently called a `ratio chart`......
Similar Terms
329
Logarithmic chart
Chart having both abscissae and ordinates spaced logarithmically; used more for the solution of problems than for presenting facts......
Similar Terms
388
Giga
img:equations//383_402_e.jpg
Similar Terms
389
Mega
img:equations//383_402_e.jpg
Similar Terms
499
2 UK gallons
img:equations//493_500_e.jpg
Similar Terms
507
42 US gallons
img:equations//501_507_e.jpg
Similar Terms
658
UK Gallons
img:equations//631_658_e.jpg
Similar Terms
666
1 gasha
img:equations//663_675_e.jpg
Similar Terms
791
Rain gauge, Rain gage, Pluviometer, or Ombrometer
A non-recording instrument for measuring  rainfall at a given place over time.
Similar Terms
792
Catch of gauge
The area at the top of gauge that receives the precipitation.
Similar Terms
793
Rain recording gauge, Rain recorder, Self-registering gauge, pluviograph
A recording instrument for measuring rainfall.
Similar Terms
796
Totalizer, or Storage rain gauge
A type of rain gauge which totalizes the quantity of precipitation.
Similar Terms
826
Snow gauge
An instrument for measuring depth of snow that falls at a given place and time.
Similar Terms
972
Ungauged basin, or Ungaged watershed (US)
Drainage basin of which no regular hydrological records are available.
Similar Terms
1035
Negative confining bed
A formation that prevents or retards downward movement of groundwater where the overlying water has sufficient head to produce a resultant downward pressure......
Similar Terms
1106
Effluent stream, or Gaining stream
1 - A stream fed by groundwater. 2 - A stream flowing out of another stream or out of a lake.
Similar Terms
1168
Stream gauging
The process of determining the discharge of water in an open channel, commonly as the product of flow velocity and cross-sectional area.  See also 1169......
Similar Terms
1169
Dilution gauging, Chemihydrometry
Methods of measuring the flow of water by introducing a constant flow of a chemical or radioactive solution of known concentration for a sufficient period of time at one section of the water channel and then by determining the resulting degree of dilution of this solution at another downstream section......
Similar Terms
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
1171
Cloud-velocity gauging, Allen`s method of velocity gauging, Colour-velocity gauging
A method of determining the velocity of a slug of dye between two stations in the channel. This velocity, assumed to be the mean velocity of flow, multiplied by the cross-sectional area of the channel, gives the discharge. `Allen`s method` and `colour-velocity method` are different forms of cloud-velocity gauging......
Similar Terms
1172
Float gauging
Estimation of the average velocity of water in an open channel by timing the rate of movement of weighted floats in order to determine discharge......
Similar Terms
<<    Browsing page 1 of 19    >>