ERS120H5 Lecture Notes - Lecture 20: Mesa, Bed Load, Suspended Load
Document Summary
Watershed: the area drained by a stream and its smaller streams (tributaries) All the water in the green area will head out in the hudson"s bay. The water in toronto will end up in the atlantic ocean. Dendritic: drainage forms a pattern like a branching tree, a result of erosion of material that is relatively homogeneous: they all branch together to have a trunk at the bottom. Radial: drainage develops from a central point uplift (a mesa, volcano, etc. ) Trellis: drainage develops in deformed strata with alternating resistant and weak rocks: the ridges have more confident rocks (harder to erode rocks) Stream-gauging station: measures the height of the water and can moniter the velocity of the river. Stream discharge: volume of water that passes a given point in one second: discharge (m3/s) = width (m) x depth (m) x velocity (m/s, discharge = area of opening x rate of flow.
