Comparative Analysis of Groundwater Simulation Models: MODFLOW vs. FEFLOW

Abstract

Aquifer analysis and management tools have become common; these are groundwater modelling tools like MODFLOW and FEFLOW. This paper sought to compare the perceptions of the experts regarding their usability, learning curve, suitability and effectiveness. The qualitative approach was used, and a secondary sources literature review was implemented alongside the semi-structured interviews of six experienced practitioners conducted and thematic analysis was a method of their analysis. Findings indicate that MODFLOW is more approachable, generally accepted by governments, and more efficient in situations where a large geologic regional coverage with a homogeneous type is involved, and FEFLOW is more efficient in cases where complex heterogeneous systems and coupled processes are involved. The research has concluded that one model is not by any means superior to the other, and selection depends on the situation. It suggests flexibility in being able to use both tools as a dual capability. An example of practical implications is informing model selection, training design and policy guidelines. The weaknesses are small purposive sampling and the use of self-reported experiences.