Surface Water Chapter 9

Stream Stages Youthful Old ________: _______: Rapids Waterfalls Fast-moving water Steep slope _______: Broad floodplain Meanders Oxbow lakes Meander Scars

Important Definitions River System ____________ – a stream and all its tributaries ________ – a smaller stream that empties into a larger stream _________ – the land area drained by a river system ______ – a high point that separates river systems Tributary Watershed Divide

________ – the bends and curves of a stream Meanders ________ – the bends and curves of a stream

Oxbow lake deposition erosion

____________ – deposit formed when a stream spreads out onto a less steep area Alluvial Fan

_____ – where a stream empties into a larger body of water Delta _____ – where a stream empties into a larger body of water

____________ – when an old age stream downcuts to “make it new again” Rejuvenation

Stream Load A stream can carry its load in three different ways: 1.________ – material is dissolved 2.__________ – particles are held up by stream’s moving water 3._________ – material pushed or rolled along the stream’s channel solution suspension bed load

Stream Discharge Discharge is the amount of water that flows past a point in a certain amount of time. Discharge is dependent upon velocity, depth, and width of the stream. Discharge = _______ x _____ x _____ velocity depth width

Surface Water Review solution, suspension, bed load land area drained by a river system divide

Surface Water Review (continued) in the center along the sides and bottom because of the friction with the channel a bend or curve in the stream Maximum on the outside of the meander and minimum on the inside inside of meanders channel