@article{fdi:010074790,
  title = {{T}ime-domain electromagnetic imaging of a clayey confining bed in a brackish environment : a case study in the {K}airouan {P}lain {A}quifer ({K}elbia salt lake, {T}unisia)},
  author = {{F}inco, {C}. and {P}ontoreau, {C}. and {S}champer, {C}. and {M}assuel, {S}ylvain and {H}ovhannissian, {G}aghik and {R}ejiba, {F}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he semi-arid {P}lio-{Q}uaternary aquifer of the {K}airouan {P}lain is located in the central part of {T}unisia. {I}n this region, the main form of human activity is extensive agriculture. {T}he few lithological logs in this area indicate that the aquifer is divided into two groundwater reservoirs separated by a confining clay layer. {I}n the shallower groundwater reservoir, the electrical conductivity of the water is close to 1,200 m{S}/m, that is, 3 to 4 times higher than that of the deeper aquifer, which is currently used for irrigation. {R}ecently, an increase in salinity has been observed, which is producing significant difficulties with irrigation. {I}n order to determine the geometry of the confining clay layer and assess the potential connectivity between both reservoirs, time-domain electromagnetic ({TDEM}) and vertical electrical soundings surveys were carried out. {I}n the extremely conductive environment (electrical resistivities <10 omega m) of the {S}ebkha {K}elbia, the {TDEM} survey produced the first geophysical map of this near-surface aquifer system.},
  keywords = {brackish environment ; confining clay layer ; ground water reservoir ; hydrogeophysics ; semi-arid region ; {TDEM} sounding ; {TUNISIE} ; {ZONE} {SEMIARIDE}},
  booktitle = {},
  journal = {{H}ydrological {P}rocesses},
  volume = {32},
  numero = {26},
  pages = {3954--3965},
  ISSN = {0885-6087},
  year = {2018},
  DOI = {10.1002/hyp.13303},
  URL = {https://www.documentation.ird.fr/hor/fdi:010074790},
}