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Evaluation of Water Flux Above A Deep Water Table Using Thermocouple Psychrometers
Author(s) -
Enfield C. G.,
Hsieh J. J. C.,
Warrick A. W.
Publication year - 1973
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1973.03615995003700060048x
Subject(s) - thermocouple , hydraulic conductivity , thermal diffusivity , flow (mathematics) , environmental science , soil science , water table , flux (metallurgy) , soil water , water flow , hydrology (agriculture) , moisture , water content , thermal conductivity , geology , groundwater , materials science , mechanics , geotechnical engineering , thermodynamics , physics , metallurgy , composite material
Deep water flow was evaluated in a Washington desert environment using hydraulic conductivity and potential gradients. Thermocouple psychrometers and temperature transducers were installed to depths of 94 m in the soil profile and used to measure the potential gradients. The hydraulic conductivity was calculated using a modified Millington and Quirk equation and the soil moisture characteristic curve. The thermal fluid diffusivity was calculated and used to estimate flow induced by thermal gradients. Under the conditions studied, a more refined analysis of the thermally induced flow is required to give a definite answer as to the direction of flow. It was concluded, however, if flow existed at this location, it was less than 1 cm/year.