Monthly evapo‐transpiration losses from natural drainage‐basin

Eos, Transactions, American Geophysical Union
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Abstract

With limited restrictions the hydrologic cycle in a given area may be expressed essentially as follows: P = (R + E + ΔFm) in which P represents the precipitation during a given period, R that portion which has reached or will reach the stream‐channel either through surface or subsurface paths, E that part which is evaporated from land and water surfaces and transpired by vegetation during the same period, and ΔFm the change in field‐moisture content during the period. In general both E and Fm are unknown. When the period of time considered in the above expression is long, ΔFm may be neglected and then the evapo‐transpiration losses equal the difference between P (rainfall) and R (runoff) [see 1 of “References” at end of paper]; on the other hand, when the period of time considered is short and considerable rain has fallen then E may be neglected and ΔFm equals the difference between P and R represents water stored as an increment to field‐moisture to be disposed of by evapo‐transpiration during subsequent rainless periods [2].

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Monthly evapo‐transpiration losses from natural drainage‐basin
Series title Eos, Transactions, American Geophysical Union
DOI 10.1029/TR023i002p00604
Volume 23
Issue 2
Year Published 1942
Language English
Publisher American Geophysical Union
Description 11 p.
First page 604
Last page 614
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