Scope of the book
The book is divided into nine chapters. The first three chapters introduce the subject, describe the core framework data model, and present an exposition of how to represent 3D objects in ArcGIS. The next three chapters present components of the groundwater data model for geological mapping, wells and aquifers, and 3D hydrostratigraphy. The final three chapters describe time series, groundwater modeling, and implementation of the groundwater data model in ArcGIS. It is important to understand some of the limitations of this book—we are describing an information model for groundwater data. This is not a book about groundwater simulation modeling. Arc Hydro Groundwater can be used to help create groundwater simulation models and to store the results of groundwater simulations, but Arc Hydro Groundwater is not itself a groundwater simulation model. Likewise, although we devote considerable attention to hydrogeology, Arc Hydro Groundwater is not intended to capture all the detailed cartographic aspects of geologic and hydrogeologic mapping. Our focus is on the groundwater environment and on the properties of the water flowing through that environment.