ABSTRACT
The field of hydrology embraces areas of investigation that perhaps could be more definitively labeled as engineering hydrology. These include, for example, flooding, flood analysis, flood control, and seepage through earth dams. Hydrology deals with surface water and ground water, their interdependence, and their interaction with earth materials. In its application, hydrology must be treated more as a field-based art than as a mathematical science. In most cases the thorough hydrologic characterization of a site is an outgrowth of its sound hydrogeologic assessment. The practice of hydrology demands high ethical conduct and heavy responsibility; the consequences of mistakes and failure often are both costly and tragic. The Hydrologic Cycle involves the continuous natural circulation of water between the ocean, the atmosphere, and land. The connection between the flow of water in rivers and that in the saturated zone below the earth's surface is of particular importance.
