ABSTRACT
A conceptual model of a hydrologic system should be a clear, qualitative, physical description of the operation of the system. A hydrologist’s conceptual model determines the direction, focus, and specific content of the investigation. The model consists of maps and cross-sections showing the subsurface geology, distribution of recharge, flow paths, and discharge. If the conceptual model does not accurately represent the operation of the real hydrologic system, then the results of the investigation will at best be misleading and at worst grossly in error. The steps for developing a conceptual model are
Examples of conceptual models in different hydrogeologic settings are shown in Figures 4.1, 4.2, and 4.3.
