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This article in SSSAJ

  1. Vol. 37 No. 6, p. 968-970
    Received: Aug 11, 1972
    Accepted: Aug 27, 1973

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Evaluation of Water Flux Above A Deep Water Table Using Thermocouple Psychrometers1

  1. C. G. Enfield,
  2. J. J. C. Hsieh and
  3. A. W. Warrick2



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.

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