Soil volumetric water content measurements using TDR technique

M. Menziani, M. R. Rivasi, S. Pugnaghi, R. Santangelo, S. Vincenzi

Abstract


A physical model to measure some hydrological and thermal parameters in soils will to be set up. The vertical profiles of: volumetric water content, matric potential and temperature will be monitored in different soils. The volumetric soil water content is measured by means of the Time Domain Reflectometry (TDR) technique. The result of a test to determine experimentally the reproducibility of the volumetric water content measurements is reported together with the methodology and the results of the analysis of the TDR wave forms. The analysis is based on the calculation of the travel time of the TDR signal in the wave guide embedded in the soil.

Keywords


TDR technique;soil moisture;hydrology

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References


DOI: https://doi.org/10.4401/ag-3953
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Published by INGV, Istituto Nazionale di Geofisica e Vulcanologia - ISSN: 2037-416X