Mapping of soil moisture by time domain reflectometry and electrical resistivity tomography at Velika Gorica well field, Zagreb aquifer

Knowing the soil moisture distribution in unsaturated zone can improve understanding water flow through and thereby enable calculation of aquifer recharge, which occurs precipitation. One part Zagreb recharge infiltration from In order to observe model precipitation zone, research polygon was constructed at Velika Gorica well field, located southern aquifer, Croatia, where hourly measurements electric conductivity (EC) content were carried out. EC data are measured by Time Domain Reflectometry (TDR) probes placed different depths zone. Furthermore, electrical resistivity tomography (ERT) conducted. Geophysical data, along with TDR probes, used as input for MoisturEC software, obtain a 2D profile. program offers three options translating all tested this research. We obtained eight distributions observed profile concluded that provides reasonable results geophysical probe measurements. Soil represents initial conditions further modeling. Understanding enables quantification effective groundwater management.