@article{fdi:010049270,
  title = {{M}onitoring soil water content and deficit using {E}lectrical {R}esistivity {T}omography ({ERT}) : a case study in the {C}evennes area, {F}rance},
  author = {{B}runet, {P}. and {C}l{\'e}ment, {R}. and {B}ouvier, {C}hristophe},
  editor = {},
  language = {{ENG}},
  abstract = {{A}t the hillslope scale, surface runoff depends to a great extent on the water deficit of the soils, i.e. the difference between the effective porosity and the water content, all through the soil profile. {T}he aim of this study was to assess water deficits using {E}lectrical {R}esistivity {T}omography ({ERT}). {ERT} offers several advantages: (i) it is not intrusive, (ii) it exhibits spatial patterns at a decametric or hectometric scale, and (iii) it provides information on both water content and soil depth. {T}he study was conducted on a {M}editerranean shaley sandy soil, in the {C}evennes ({S}outh of {F}rance), {F}irst, the factors (nature of the pores and organization of the material, water content, soil solution and temperature) on which electrical resistivities depend were analyzed in the laboratory. {S}oil samples were used to derive the {W} and {W} parameters of {A}rchie's relation, changes in the soil solution over time, and the effect of temperature on resistivities. {T}hese results were then used to interpret {ERT} in situ at different times of the year. {T}he water content and water deficit obtained from {ERT} were then compared with local measurements made using {T}ime {D}omain {R}eflectometry ({TDR}) and the comparison was satisfactory. {T}he results of this study show the potential of measuring soil water content and water deficit using electrical resistivities, and describe how uncertainties in temperature, porosity, and fluid conductivity impact {ERT}-obtained estimates of soil water content and deficit.},
  keywords = {{E}lectrical {R}esistivity {T}omography ({ERT}) ; {W}ater deficit ; {L}aboratory ; calibration ; {S}haley soils ; {M}editerranean floods},
  booktitle = {},
  journal = {{J}ournal of {H}ydrology},
  volume = {380},
  numero = {1-2},
  pages = {146--153},
  ISSN = {0022-1694},
  year = {2010},
  DOI = {10.1016/j.jhydrol.2009.10.032},
  URL = {https://www.documentation.ird.fr/hor/fdi:010049270},
}