ABSTRACT
This chapter aims to develop a 3-D water table flow model for a fractured granitic groundwater system that is recharged by rain precipitation. During the flood season at a typical hydroelectric station, the discharging of its excessive water could cause localized rain precipitation and mist and result in enhanced slope seepage in the site’s downstream slope (s). The precipitation resulting from such a discharge can be as intense as a torrential storm. Definitions for rain precipitation and mist phenomena in the following discussion are in order. Mist occurrence is referred to as the rain precipitation and fog flow generated from flood water discharging down the spillway, forming a water tongue that diffuses into and mixes with air and splashes upon the water in the lunge pool. The simulated response of a water table aquifer to intensified mist rain precipitation was based on the calibrated flow model.
