Geomorphology is the study of the shape of the Earth. In this book we take this quite literally, and address the shape of the Earth at many scales. We ask why it is spherical, or not quite spherical, why it has a distribution of elevations that is bimodal, one mode characterizing a quite well-organized set of ocean basins, another the terrestrial landscape. At smaller scales, we address why hilltops are convex, why glacial troughs are U-shaped, why rivers are concave up. At yet smaller scales, sand is rippled, beaches are cusped, hillslopes are striped, and mud is cracked. These are some of nature's most remarkable and visible examples of self-organizing systems. Each cries out for both explanation and appreciation.
Goals
We wrote this textbook to provide modern teachers and students of geomorphology with a formal treatment of geomorphic processes that acknowledges the blossoming of this field within the last two decades. It brings together between two covers the background that serves to attach our field with those of geophysics, atmospheric sciences, geochemistry, and geochronology. It honors the heightened importance of geomorphology in understanding the environment and its changes, with an attendant need to pose these problems more formally.
The book is intended to be used in an introductory geomorphology course in which the attention is more on the processes that shape landscapes than on the cataloging of landforms. Most likely such a course will fit into a third and fourth year undergraduate or an introductory graduate curriculum.