Record Display for the EPA National Library Catalog

RECORD NUMBER: 32 OF 34

OLS Field Name OLS Field Data
Main Title Upward Flow from Shallow Water Tables.
Author Hamake, Philip ;
CORP Author Colorado State Univ., Fort Collins.
Year Published 1972
Report Number DI-14-01-0001-1434; OWRR-B-013-COLO; 06844,; B-013-COLO(3)
Stock Number PB-231 480
Additional Subjects Soil water ; Fluid flow ; Water loss ; Drying ; Fluid infiltration ; Evaporation ; Water table ; Mathematical prediction ; Ground water ; Experimental data ; Vacuum ; Shallow water ; Hydrology ; Soil water movement ; Water levels
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-231 480 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 185p
Abstract
Upward flow from shallow water tables was studied by application of the flow theory; this leads to a differential equation which describes the interrelationship between the soil properties, the water table depth, the pressure head at the soil surface, and the rate of upward flow. The solution to the equation predicts that for a given soil and water table depth, the upward flux should increase and approach a finite limit as the pressure head at the soil surface becomes more negative. In one series of experiments, upward flow was induced by suction from the soil surface. For a given water table depth, the measured pressure head and hydraulic head distribution and the rate of upward flow as a function of the pressure head at the soil surface were in agreement with flow theory.