The term “floods” can have quite different connotations to hydrologists and to laymen. Hydrologists are primarily concerned with discharge, the volume per unit of time at a point, along a stream, or throughout a drainage basin or basins, usually on a yearly basis. However, in arid regions the “annual flood” in some years may be a very small discharge or even zero-certainly not a “flood” in the lay sense. Even on a perennial stream, the annual maximum discharge or “flood” during a drought year may be a flow that is exceeded on many days in a wet year.
Figures & Tables
Provides reviews of all major facets of hydrology. Topics covered include: influences of the atmosphere and of land and vegetation on stream flow; temporal and spatial variability of stream flow, with separate chapters on floods and on low flow and hydrologic drought; snow and ice, the frozen components of the hydrosphere; the hydrology of lakes and wetlands; hydrogeochemistry of rivers and lakes; the aquatic biota; sediment movement and storage; the riverscape for selected North American rivers; and the influence of Man on hydrologic systems. Accompanying color plates show histograms of river water chemistry, runoff and flow regimes, and the distribution of precipitation minus evaporation for North America.