Evgeny Karshakov



Evgeny Karshakov is a CEO at Moscow based company Geotechnologies and a Senior Researcher at the Institute of Control Sciences of Russian Academy of Sciences. Since 2000 his interests lie in the field of airborne geophysics. He was directly involved in development of airborne electromagnetic systems DIP-4A (frequency domain) as an employee of Aerogeophysica, EM-4H (frequency-domain) and EQUATOR (time-domain) as an employee of Geotechnologies. He has more than 100 publications. PhD: 2002, Lomonosov Moscow State University, department of mechanics and mathematics. DSc: 2019, the Institute of Control Sciences of Russian Academy of Sciences.

Open Business Track 4
20 April 2023 / 11:30 - 13:00 | Sary Arka 2

AEM survey of the Neretva Delta (Croatia): a case study for hydrogeology

Groundwater salinization is a serious problem affecting numerous areas of the world, and Neretva’s delta in Croatia is one of them. Airborne electromagnetics is already widely used to feed data-driven decision and management processes with accurate (hydro)geomodels and, by doing so, to mitigate the detrimental effects of salinization. In this perspective, in 2021, an airborne electromagnetic survey was flown over about 100 km2. The overall goal of the survey was to better understand the hydrogeology of the plain leading to a more quantitative assessment of the saltwater intrusion and possible preferential paths. Here, we present the results of data processing and inversion. We built a (pseudo-)3D resistivity model based on 1D forward approximation. And we compare it against ground-based electrical measurements. According to the available boreholes, freshwater is related to a relatively resistive unit.