Unit hydrograph

Unit hydrograph

Hydrograph of storm runoff at a given point on a given stream which will result from an isolated rainfall excess of unit duration occurring over the contributing catchment area and resulting in a unit of runoff.

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Part of Speech: noun
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Industry/Domain: Agriculture
Category: Irrigation
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Related terms

unit hydrograph

Weather; Meteorology

The discharge at a point, expressed as a function of time, due to a unit of effective rainfall that is applied uniformly over the contributing area during a specified period of ...

unit hydrograph

Energy; Hydro dam; Dam safety

A hydrograph with a volume of one inch of runoff resulting from a storm of a specified duration and areal distribution. Hydrographs from other storms of the same duration and ...

unit hydrograph

Agriculture; Irrigation

Hydrograph of storm runoff at a given point on a given stream which will result from an isolated rainfall excess of unit duration occurring over the contributing catchment area ...

unit hydrograph

Engineering; Civil engineering

The direct runoff hydrograph resulting from a unit depth of excess rainfall produced by a storm of uniform intensity and specified duration. A hydrograph with a volume of 1 inch ...

instantaneous unit hydrograph

Weather; Meteorology

Unit hydrograph resulting from a unit amount of effective precipitation applied to a drainage basin in an infinitesimally short time.

hydrograph

Earth science; Soil science

A graph of the flow rate, either surface or subsurface flow, with time.

Saal an der Donau

Agriculture; Anatomy; Farm machinery & equipment; General agriculture; Irrigation

Saal an der Donau est une commune de Bavière (Allemagne), située dans l'arrondissement de Kelheim, dans le district de Basse-Bavière.

application efficiency

Agriculture; Irrigation

The ratio of the water that is absorbed and stored in the root zone for later use by the plants to the total water applied.

actual evapotranspiration

Agriculture; Irrigation

The actual rate of water uptake by the plant which is determined by the level of available water in the soil.

available water capacity (AWC)

Agriculture; Irrigation

The portion of water in a soil that can be readily absorbed by plant roots. It is the amount of water between field capacity and permanent wilting point. It's usually measured ...

available water (aw)

Agriculture; Irrigation

The portion of water in a soil that can be readily absorbed by plant roots. It is the amount of water between field capacity and permanent wilting point. It's usually measured ...

backflow prevention device

Agriculture; Irrigation

A mechanical device used to prevent the flow of water from the water distribution system back to the water source and may be required by law. It's similar to anti-siphon valves.