Prepared by the Task Committee on Hydrology Handbook of Management Group D of ASCE

Hydrology Handbook, MOP 28, serves as a basic reference, providing a thorough, up-to-date guide for hydrologists. Completely revised and rewritten from the 1949 edition, this Manual incorporates many of the changes and advances that have occurred, not only in the fundamental understanding of hydrologic systems, but also in data acquisition and computational techniques and procedures. Detailed engineering descriptions of the various phases of the hydrologic cycle, also known as nature's waterwheel, are presented. Topics include:

• natural phenomena in the hydrologic cycle;
• formation and types of precipitation;
• processing and interpreting precipitation records;
• principles and factors of infiltration;
• physics and theory of evaporation and evapotranspiration;
• groundwater source, movement, and quality;
• measurement and routing of stream flow;
• physical processes, analysis, and simulation of snow and snowmelt;
• flood characteristics and analysis;
• hydrologic impacts of urbanization and watersheds;
• wave theory; and
• study formulation, data management, calibration, and verification of hydrologic models.