Frequency of Potential Evapotranspiration Rates in Great Central Plainsby Norman J. Rosenberg, Prof.; Agric. Climatology, Dept. of Horticulture and Forestry, Univ. of Nebraska, Lincoln, NE,
Serial Information: Journal of the Irrigation and Drainage Division, 1972, Vol. 98, Issue 2, Pg. 203-206
Document Type: Journal Paper
Because of strong advection in the region, ET rates in the eastern Great Plains must frequently be expected to exceed the energy equivalent of the net radiation (6 to 7 mm per day on clear days). Data presented in this report show that ratio LE/RN is often greater than unity for alfalfa and soybeans grown at Mead. Data on sugar beets grown in western Nebraska corroborate this finding. Frequency distributions of daily water use by a well-watered soybean crop are given as an aid to irrigation design in the eastern Great Plains region. Maximum measured ET for both alfalfa and soybeans has been approximately 12 mm per day.
Subject Headings: Evapotranspiration | Crops | Frequency distribution | Vegetation | Water use | Radiation | Hydraulic design | Advection | Irrigation | Nebraska | North America | United States
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