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Title: Vadose zone water fluxmeter

Abstract

A Vadose Zone Water Fluxmeter (WFM) or Direct Measurement WFM provides direct measurement of unsaturated water flow in the vadose zone. The fluxmeter is a cylindrical device that fits in a borehole or can be installed near the surface, or in pits, or in pile structures. The fluxmeter is primarily a combination of tensiometers and a porous element or plate in a water cell that is used for water injection or extraction under field conditions. The same water pressure measured outside and inside of the soil sheltered by the lower cylinder of the fluxmeter indicates that the water flux through the lower cylinder is similar to the water flux in the surrounding soil. The fluxmeter provides direct measurement of the water flow rate in the unsaturated soils and then determines the water flux, i.e. the water flow rate per unit area.

Inventors:
Publication Date:
Research Org.:
The Regents of the University of California, Oakland, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175531
Patent Number(s):
6,957,573
Application Number:
10/353,414
Assignee:
The Regents of the University of California (Oakland, CA) OSTI
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Faybishenko, Boris A. Vadose zone water fluxmeter. United States: N. p., 2005. Web.
Faybishenko, Boris A. Vadose zone water fluxmeter. United States.
Faybishenko, Boris A. Tue . "Vadose zone water fluxmeter". United States. https://www.osti.gov/servlets/purl/1175531.
@article{osti_1175531,
title = {Vadose zone water fluxmeter},
author = {Faybishenko, Boris A.},
abstractNote = {A Vadose Zone Water Fluxmeter (WFM) or Direct Measurement WFM provides direct measurement of unsaturated water flow in the vadose zone. The fluxmeter is a cylindrical device that fits in a borehole or can be installed near the surface, or in pits, or in pile structures. The fluxmeter is primarily a combination of tensiometers and a porous element or plate in a water cell that is used for water injection or extraction under field conditions. The same water pressure measured outside and inside of the soil sheltered by the lower cylinder of the fluxmeter indicates that the water flux through the lower cylinder is similar to the water flux in the surrounding soil. The fluxmeter provides direct measurement of the water flow rate in the unsaturated soils and then determines the water flux, i.e. the water flow rate per unit area.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {10}
}

Patent:

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