Evaluation of a Direct-Coupled Time-Domain Reflectometry for Determination of Soil Water Content and Bulk Electrical Conductivity

Signal degradation in coaxial cables and interconnects is a long-standing problem in the practical deployment of time-domain reflectometry (TDR) for soil water monitoring. Acclima, Inc. has recently commercialized a TDR sensor (TDR-315) with all electronics required for waveform acquisition embedded...

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Veröffentlicht in:	Vadose zone journal 2016-01, Vol.15 (1), p.1-8
Hauptverfasser:	Schwartz, Robert C, Evett, Steven R, Anderson, Scott K, Anderson, David J
Format:	Artikel
Sprache:	eng
Schlagworte:	apparent permittivity applications applied (geophysical surveys & methods) cables calcium chloride calibration clay clay loam clay loam soils dielectric constant elastic waves electrical conductivity electrical methods electronics geophysical methods Geophysics Hydrogeology instruments measurement moisture Mollisols monitoring Paleustolls reflectometry sensors soil water soil water content soils solutes techniques time domain reflectometry traveltime United States unsaturated zone vadose zone water content waveforms
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