Recharge from Rainfall in Hard Rock Vesicular is the process by which precipitation infiltrates into the ground through fractures, joints, and vesicles in hard rock formations. And is denoted by Rhrv. Recharge from Rainfall in Hard Rock Vesicular is usually measured using the Cubic Meter per Second for Volumetric Flow Rate. Note that the value of Recharge from Rainfall in Hard Rock Vesicular is always negative.