@incollection{fdi:010073364, title = {{A}nalysis and interpretation of electrical resistivity tomography data of alluvial aquifer of {T}amanrasset {S}outhern {A}lgeria}, author = {{Z}eddouri, {A}. and {B}en {E}lkheir, {A}. and {H}adj-{S}aid, {S}. and {T}aupin, {J}ean-{D}enis and {L}educ, {C}hristian and {P}atris, {N}icolas}, editor = {}, language = {{ENG}}, abstract = {{A} groundwater exploration work in the {T}amanrasset region in southern {A}lgeria was started in {A}ugust 2016 to assess the water reserves in the hydrogeological system related to the {O}ued {T}amanrasset underflow water table which overcomes a volcanic basement. {F}ive (05) electrical resistivity tomography ({ERT}) surveys were conducted in {T}amanrasset area by using {ABEM} {T}errameter {LS} system. the low electrical contrast between wet alluvium and water saturated alterites makes difficult the electrical response interpretation. to overcome the difficulties of interpretation of {ERT} profiles, field investigations, laboratory tests and software simulations, were carried out in order to clearly identify the structure of the hydrogeological system. {T}he experimental investigation of the electrical characteristics of the alluvium as a function of water saturation was carried by the use of two devices ({W}enner α and {S}chlumberger). {S}amples true resistivity values varies between 50 Ω.m for a 100% saturated sample and 1250 Ω.m for a 25% saturation sample. {T}he interpretation of the measurements by the {RES}2{DINV} software made it possible to give 2{D} images of the subsoil up to a depth of 50 m. the electrical contrast between the bedrock and the overlying formations made it possible to identify it, however, it was difficult to distinguish alterites from alluvium. {A} methodology combining piezometric survey, geo-electrical measurements and field observations improves the interpretation of electrical tomography profiles and the application of the {ERT} method for accurate characterization of water resources in the {T}amanrasset region.}, keywords = {{RESSOURCES} {EN} {EAU} ; {AQUIFERE} ; {GEOPHYSIQUE} ; {TOMOGRAPHIE} ; {MODELE} {NUMERIQUE} {DE} {TERRAIN} ; {RESISTIVITE} {ELECTRIQUE} ; {ALGERIE} ; {TAMANRASSET} ; {ZONE} {ARIDE}}, booktitle = {{T}echnologies and materials for renewable energy, environment and sustainability}, volume = {1968}, numero = {}, pages = {020024--1--020024--8}, address = {{N}ew {Y}ork}, publisher = {{AIP} {P}ubl.}, series = {{AIP} {C}onference {P}roceedings}, year = {2018}, DOI = {10.1063/1.5039183}, ISBN = {978-0-7354-1675-8}, ISSN = {0094-243{X}}, URL = {https://www.documentation.ird.fr/hor/fdi:010073364}, }