Numerical groundwater modeling of an Eogenetic Karst Catchment using analytical Head-Guided Zonation method: A new analytical approach

In parameterisation step, implementing suitable calibration methods that accurately represents the actual system is crucial in developing a dependable groundwater model in datascarce areas. In this study, the Head-Guided Zonation (HGZ) method was applied to accommodate the limitation of subsurface data, such as the lack of comprehensive spatial distribution of hydraulic conductivity and specific yield values. This study demonstrated that the spatial distribution of groundwater heads can be used to assume the spatial distribution of sub-surface parameters, hence, hydraulic conductivity zones in the model domain can be established using the distribution of hydraulic gradient. We conclude that the HGZ method is practical and applicable for development of a physically-based groundwater model.