Geomorphology, the discipline which analyzes the history and nature of the earth's surface, deals with the landforms produced by erosion, weathering, deposition, transport and tectonic processes. In recent decades there have been major developments in the discipline and these are reflected in this major Encyclopedia, the first such reference work in the field to be published for thirty-five years. Encyclopedia of Geomorphology has been produced in association with the International Association of Geomorphologists (IAG) and has a truly global perspective. The entries have been written by an international editorial team of contributors, drawn from over thirty countries, who are all among the leading experts in the discipline. In two lavishly illustrated volumes, Encyclopedia contains nearly 700 alphabetically organized entries to provide a comprehensive guide both to specific landforms and to the major types of geomorphological processes that create them. The Encyclopedia also demonstrates the major developments that have taken place in recent years in our knowledge of tectonic and climatic changes and in the use of new techniques such as modelling, remote sensing and process measurement. Older concepts, however, are not forgotten and provide an historical perspective on the development of ideas. Both accessible and authoritative, Encyclopedia of Geomorphology is destined to become the definitive resource for students, researchers and applied practitioners in the field of geomorphology and the cognate disciplines of geography, earth science, sedimentology and environmental science.

Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 107. Bedrock river channels are sites of primary erosion in the landscape, fixing the baselevel for all points upstream. This volume provides for the first time an integrated view of the characteristics and operation of this important, though hitherto neglected, class of channels. Examples are provided from several continents and cover a wide range of spatial scales from the large river basins (such as the Colorado River in the United States and the Indus River in Pakistan) down to reach scales and individual sites. Likewise the geologic timescales considered range from erosion and transportation during individual flows to accumulated effects over periods of tens of millions of years.