Definition of Terms

There is a lot of technical terms on the Rivers and Streams website. This page is designed to help navigate and define these words and phrases. Use the line below to skip to a certain letter.
Study of the origin of landforms, the processes that form them, and their material composition, and functional relationships.
A shallow stream reach with a maximum depth that is 5% or less of the average stream width, a water velocity less than 20 cm/sec, and is without surface turbulence.
Slope, or the change in vertical elevation per unit of horizontal distance, of the water surface in a stream.
Substrate particle size between 2 and 64 mm (0.1 and 2.5 in) in diameter.