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.