@article{fdi:010083831,
  title = {{I}mproving the methods for processing hard rock aquifers boreholes' databases : application to the hydrodynamic characterization of metamorphic aquifers from {W}estern {C}ote d'{I}voire},
  author = {{A}oulou, {K}. {A}. and {P}istre, {S}. and {O}ga, {Y}. {M}. {S}. and {D}ewandel, {B}. and {L}achassagne, {P}atrick},
  editor = {},
  language = {{ENG}},
  abstract = {{S}tatistical analysis of a borehole database, linear discharges, and water strikes processing enabled an understanding of the structure, geometry and hydrodynamic properties of the metamorphic hard rock aquifers from the {M}ontagnes {D}istrict, {W}estern {C}ote d'{I}voire. {T}he database comprises 1654 boreholes among which 445 only were usable for this research work after its pre-processing. {A}nalysis shows that the structure of the aquifer is similar to that observed in several other areas in the world: it developed due to weathering processes, comprises the capacitive saprolite, 10-20 m thick on average, and an underlying transmissive fractured layer, overlying the unweathered impermeable hard rock. {T}he fractured layer is 80 m thick, the first 40 to 45 metres being its most productive zone, with a 11.3 m(3)/h median productivity. {T}his research shows that metamorphic aquifers exhibit similar aquifer properties (thickness, hydrodynamic parameters) as plutonic ones and that there is interest in using such databases for research and other purposes. {H}owever, a rigorous pre-treatment of the data is mandatory, and geological data from published maps must be used instead of the geological data from the database. {A} previous methodology aiming at processing the boreholes' linear discharges was improved. {I}t notably appears that the slope method must be preferred to the percentile method.},
  keywords = {groundwater ; hydrogeological conceptual model ; linear discharge ; saprolite ; mining impacts ; water strike ; weathered fractured layer ; {COTE} {D}'{IVOIRE} ; {MONTAGNES} {DISTRICT}},
  booktitle = {},
  journal = {{W}ater},
  volume = {13},
  numero = {22},
  pages = {3219 [35 ]},
  year = {2021},
  DOI = {10.3390/w13223219},
  URL = {https://www.documentation.ird.fr/hor/fdi:010083831},
}