Time-lapse images are important sources to understand deep drainage and recharge potential. Temporal change in resistivity are due largely to change in water content when no other subsurface reactions are present. For additional detail see the paper below:
http://www.nature.com/articles/s41598-017-01662-y
Electrical resistivity prospecting has acquired greatest importance in groundwater investigations and this is mainly due to the large and detectable variation in the resistivity values with the quantity of water in a rock. The resistivity of water bearing rocks largely depends on the amount of water they contain, the chemical composition and temperature, and the distribution of water.
Resistivity prospecting aims at determining the resistivity of the formations (more precisely geoelectric sections) which in turn can be used to determine the subsurface structures of large groundwater basins, horizontal and vertical distribution of the aquifer, salt-fresh water boundaries, presence of burried channels, etc.
Successful application of geophysical methods depends largely on the correct choice of the method or combination of methods; the quality of the instruments; competent fieldwork; correct processing and interpretation of field results and their correlation with geologic data. Without some basis for correlation with the observed geologic and borehole data, conclusions from geophysical investigations are likely to remain ambiguous.
Resistivity surveys alone will not provide the ultimate result for delineating groundwater potential zones. The results obtained from the resistivity survey has to be compared with sub-surface geologic information in terms of rock types, structural details, etc, obtained through exploratory boreholes or lithlog details from the existing borewells. Integrating geological information with that of geo-electrical (resistivity) information, one can delineate groundwater potential zones.
https://www.researchgate.net/publication/245322452_Modelling_of_Lithology_and_Hydraulic_Conductivity_of_Shallow_Sediments_from_Resistivity_Measurements_Using_Schlumberger_Vertical_Electric_Soundings_Built_on_and_Cited_by_30_Researchers_including_9_PhD?_sg=ufoNbuHQ6kpyWgM8W0zCwmazWeTa6etD8iRnXZ2HmTjF1IFkydhci6ZfzyhSw8_sFdZRtg30x3W8Zg.UKQ8D8HHLeTRV24bsmjp4VthKZdfkWyBWE6VRUzTBP1mapDAe0v3IODPmoT8TAYeiiQgtTq8jFEvEOZ3hAWj1Q&_iepl%5BviewId%5D=kg6guT1OjCd3Hv696epOP4gI&_iepl%5BprofilePublicationItemVariant%5D=default&_iepl%5Bcontexts%5D%5B0%5D=prfpi&_iepl%5BtargetEntityId%5D=PB%3A245322452&_iepl%5BinteractionType%5D=publicationTitle
Article Modelling of Lithology and Hydraulic Conductivity of Shallow...
well, try this link,
https://www.researchgate.net/publication/303933182_Geo-Electrical_Investigation_of_Mullusi_Aquifer_Rutba_Iraq.
Article Geo-Electrical Investigation of Mullusi Aquifer, Rutba, Iraq
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