Hydrology for engineers

The basic processes of hydrology are stressed in this the second edition which reporesents and extensive revision of the earlier text. The importance of the digital computer as a tool for hydrologic analysis is recognized, but older methods are also discussed. The concept of the hydrologic cycle is described. The factors which affect a regions hydrology are covered in detail and include weather (solar and earth radiation, temperature, humidity, wind), and precipitation (measurement, interpretation of data, variations in precipitation, snowpak and snowfall). Streamflow (water stage, discharge, interpretation of streamflow data) aspects are detailed, and features of subsurface water (occurrence, moisture in the Vadose zone, moisture in the phreatic zone, potential of a groundwater reservoir) are described. Streamflow hydrographs (characteristics, hydrograph synthesis) are discussed, and the relations between precipitation and runoff (runoff phenonomena, estimating volume of storm runoff, estimating snowmelt runoff, seasonal and annual runoff relations) are explored. Details of streamflow routing are given and computer simulation of streamflow is examined. The techniques are described for defining probability from a given set of data and with special methods employed for determining the spillway-design flood for major dams. Special methods for probability analysis using synthetically generated data are also discussed in the chapter on stochastic hydrology. Sedimentation and the monphology of river basins are covered in detail.