@article{fdi:010054170,
  title = {{M}ultiple-point statistics for modeling facies heterogeneities in a porous medium : the {K}omadugu-{Y}obe alluvium, {L}ake {C}had {B}asin},
  author = {{L}e {C}oz, {M}. and {G}enthon, {P}ierre and {A}dler, {P}. {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{M}ultiple-point statistics are used to model facies heterogeneities in the vadose zone of the {K}omadugu-{Y}obe {R}iver valley (southeastern {N}iger) which is presently submitted to an undergoing intensive agricultural development; therefore, increasing quantitative and qualitative pressures are exerted on groundwater resources. {T}he sand-clay heterogeneities are analyzed by means of a {L}andsat image acquired during a high flow period over a 160 km stretch in the downstream part of the valley and a set of 50 boreholes drilled near the town of {D}iffa (4 km x 4 km area). {T}he horizontal variograms of heterogeneities are characterized by a noticeably constant length scale of 380 m and clayey objects are shown to be randomly distributed in space according to a {P}oisson process. {A} set of two-dimensional vertical images is built based on a {B}oolean procedure and the {S}nesim algorithm is used to simulate synthetic three-dimensional media. {W}hen the vertical correlation length is fitted, the three-dimensional model satisfactorily reproduces the second order statistics of heterogeneities and the specific facies patterns.},
  keywords = {{M}ultiple-point statistics ; {F}acies modeling ; {V}ariographic analysis ; {K}omadugu-{Y}obe {R}iver ; {F}luvial deposits},
  booktitle = {},
  journal = {{M}athematical {G}eosciences},
  volume = {43},
  numero = {7},
  pages = {861--878},
  ISSN = {1874-8961},
  year = {2011},
  DOI = {10.1007/s11004-011-9353-6},
  URL = {https://www.documentation.ird.fr/hor/fdi:010054170},
}