@article{fdi:010070026,
  title = {{H}ydraulic and transport parameter assessment using column infiltration experiments},
  author = {{Y}ounes, {A}nis and {M}ara, {T}. and {F}ahs, {M}. and {G}runberger, {O}livier and {A}ckerer, {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he quality of statistical calibration of hydraulic and transport soil properties is studied for infiltration experiments in which, over a given period, tracer-contaminated water is injected into an hypothetical column filled with a homogeneous soil. {T}he saturated hydraulic conductivity, the saturated and residual water contents, the {M}ualem-van {G}enuchten shape parameters and the longitudinal dispersivity are estimated in a {B}ayesian framework using the {M}arkov chain {M}onte {C}arlo ({MCMC}) sampler. {T}he impact of the kind of measurement sets (water content, pressure inside the column, cumulative outflow and outlet solute concentration) and that of the solute injection duration is investigated by analyzing the calibrated model parameters and their confidence intervals for different scenarios. {T}he results show that the injection period has a significant effect on the quality of the estimation, in particular, on the posterior uncertainty range of the parameters. {A}ll hydraulic and transport parameters of the investigated soil can be well estimated from the experiment using only the outlet concentration and cumulative out-flow, which are measured non-intrusively. {A}n improvement of the identifiability of the hydraulic parameters is observed when the pressure data from measurements taken inside the column are also considered in the inversion.},
  keywords = {},
  booktitle = {},
  journal = {{H}ydrology and {E}arth {S}ystem {S}ciences},
  volume = {21},
  numero = {5},
  pages = {2263--2275},
  ISSN = {1027-5606},
  year = {2017},
  DOI = {10.5194/hess-21-2263-2017},
  URL = {https://www.documentation.ird.fr/hor/fdi:010070026},
}