A definitive compilation of hydrologic and geologic data, The Water Encyclopedia: Hydrologic Data and Internet Resources, Third Edition identifies the most current information on a wide range of water related topics. The book contains a brief introduction of data presented and commentary on important data-related issues in each chapter and provides more than 1100 tables and 500 figures of reliable and complete hydrologic data. New chapters present Data management concepts, International data collection leads, Metadata and data sets on the Internet, and State-by-state environmental media standards.