An Introduction to Models and Modeling in the Earth and Environmental Sciencesoffers students and professionals the opportunity to learn about groundwater modeling, startingfrom the basics. Using clear, physically-intuitive examples, the author systematically takesus on a tour that begins with the simplest representations of fluid flow and builds throughthe most important equations of groundwater hydrology. Along the way, we learn howto develop a conceptual understanding of a system, how to choose boundary and initialconditions, and how to exploit model symmetry. Other important topics covered includenon-dimensionalization, sensitivity, and finite differences. Written in an eclectic and readablestyle that will win over even math-phobic students, this text lays the foundation for asuccessful career in modeling and is accessible to anyone that has completed two semestersof Calculus.Although the popular image of a geologist or environmental scientist may be the ruggedadventurer, heading off into the wilderness with a compass and a hand level, the disciplinesof geology, hydrogeology, and environmental sciences have become increasingly quantitative.Today's earth science professionals routinely work with mathematical and computer models,and career success often demands a broad range of analytical and computational skills.An Introduction to Models and Modeling in the Earth and Environmental Sciencesis written forstudents and professionals who want to learn the craft of modeling, and do more than justrun "black box" computer simulations.