HYDRO

The study of water in the environment, including its distribution, movement, and properties

A measure of the ease with which water can move through pore spaces or fractures in soil or rock

The land area that drains rainfall and snowmelt into a common outlet like a river or reservoir

The flow of water in a natural or artificial channel, such as a river, stream, or creek

The process by which water on the ground surface enters the soil.

Water that flows over the surface of the ground, typically after rainfall, that does not infiltrate into the soil

The combined process of water evaporation from the soil and surface, and transpiration from plants

Any form of water, liquid or solid, that falls from the atmosphere, including rain, snow, sleet, and hail

The portion of streamflow that comes from groundwater seeping into the stream, as opposed to direct runoff from rainfall

The flat or nearly flat land next to a stream or river, which is subject to periodic flooding