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Evapotranspiration and Heat Budget of a Cornfield 1
Author(s) -
Gerber J. F.,
Decker W. L.
Publication year - 1961
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1961.00021962005300040016x
Subject(s) - evapotranspiration , environmental science , sensible heat , water balance , water content , soil water , latent heat , atmosphere (unit) , hydrology (agriculture) , agronomy , moisture , atmospheric sciences , soil science , chemistry , meteorology , ecology , geology , geography , geotechnical engineering , organic chemistry , biology
Synopsis Comparison of the values obtained by the water balance and Penman heat budget methods indicated that the Penman method overestimated the evapotranspiration when the soil surface was dry, even though abundant subsurface moisture was present, but gave reliable estimates when the soil surface was wet. The failure of the Penman method when the soil surface was dry was due to the underestimation of the amount of sensible heat transferred to the atmosphere.