“Catchment hydrology”的意思、由来-开放百科全书

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Catchment hydrology

释义

Water balance
Terminology
References
See also

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Catchment hydrology, is the study of the hydrology in drainage basins.

Water balance

Catchment hydrology is based on the principal of continuity, which is used to perform a water balance on a catchment:

where = inputs (P, precipitation + OW, occult water), = outputs (ET, evapotranspiration + R, runoff), and = the change in catchment storage over time.

Neglecting the minor inputs of occult water, the water balance can be revised to

Finally, considering a catchment on a long time scale, typically a year or more, removes the storage component from the equation:

.^[1]

(For more information see water balance)

Terminology

There are many terms involved with and related to catchment hydrology. These basic ones are taken from the glossary of terms in Kendall and McDonnell, 1998:

aquifer
baseflow
catchment
drainage divide
evaporation
evapotranspiration
event water
groundwater flow
Horton flow
hydrograph
infiltration
intensity
interception
overland flow
pre-event water
subsurface runoff
subsurface stormflow
surface runoff
time of concentration
transpiration

References

1. ^Kendall and McDonnell, 1998. Isotope Tracers in Catchment Hydrology. Elsevier

Water balance

Terminology

References

See also