The present study applies a geophysical approach to the Federal district of Brazil, challenging hydrogeologic setting that requires improved investigation enhance groundwater prospecting meet rising water demand. characterization complex hard-rock aquifer sub-system was conducted using direct current (DC) electrical resistivity tomography (ERT) integrated with surface geological information. Wi...

In this work, we have applied two geophysical techniques in different areas of potential interest for paleoseismological assessment the active faults Acambay graben. The main goal was to localize segments buried suspected break surface during 1912 Earthquake, order (1) identify favorable sites investigation purpose and (2) extrapolate data obtained with a paleoseismic trenching. On one hand, El...

available for completion of a survey is based on the physical process to be monitored. That is, all measurements A simple yet powerful algorithm is presented for the optimal allocacomprising a survey must be made rapidly compared with tion of electrical resistivity tomography (ERT) electrodes to maximize measurement quality. The algorithm makes use of a definition of the the rate at which the e...

Leachate originating from open refuse dumpsite systems can be delineated through an integration of qualitative and quantitative methods. This study was designed to examine extent of leachate and pollution from one of the numerous open refuse dumpsites in Lagos metropolis. Qualitative assessment was determined using electrical resistivity tomography (ERT), vertical electrical sounding (VES) and ...

The root growth of trees close to buildings can cause directly or indirectly structural damages and the necessity arises of diagnostic tools to follow their time-spatial behaviour. In this framework, sensing techniques as Ground Penetrating Radar (GPR) and Electrical Resistivity Tomography (ERT) are of relevant interest since they allow in principle the detection and identification of roots in ...

To better understand groundwater-surface water dynamics in high latitude areas, we conducted a field study at three sites in Alaska with varying permafrost coverage. The natural groundwater tracer ((222)Rn, radon) was used to evaluate groundwater discharge, and electrical resistivity tomography (ERT) was used to examine subsurface mixing dynamics. Different controls govern groundwater discharge...

Slugging flow in offshore oil & gas multi-phase transportation pipelines cause big challenges as the flow regime induces flow and pressure oscillations in the multi-phase pipelines. The negative impacts of the most severe slugs are significant and thus the elimination of slugging flow in the pipelines is a highly investigated topic. To eliminate the slug in an online manner real-time slug detec...