An area confined by drainage divides, often having only one
outlet for discharge (catchment, watershed).
Alternative term for vegetative "debris."
A vortex-type motion of a fluid flowing contrary to the main
current, such as the circular water movement that occurs when
the main flow becomes separated from the bank.
Stream cut into bedrock or consolidated deposits.
A stream or reach of stream that does not flow for parts of the
year. As used here, the term includes intermittent streams with
flow less than perennial.
Scour depth in sand-bed stream with dune bed about which
live bed pier scour level fluctuates due to variability in bed
material transport in the approach flow.
Displacement of soil particles due to water or wind action.
Fibrous matting (e.g., jute, paper, etc.) placed or sprayed on a
stream- bank for the purpose of resisting erosion or providing
temporary stabilization until vegetation is established.
Grout-filled mattress used for streambank protection.
The velocity at which a sediment particle falls through a column
of still water.
A matrix of willow or other natural material woven in bundles
and used as a filter. Also, a streambank protection technique
consisting of wire mesh or timber attached to a series of posts,
sometimes in double rows; the space between the rows may
be filled with rock, brush, or other materials.
The area in which waves are generated by wind having a
rather constant direction and speed; sometimes used
synonymously with fetch length.
The horizontal distance (in the direction of the wind) over which
wind generates waves and wind setup.
Side or end slope of an earth-fill embankment. Where a
fill-slope forms the streamward face of a spill-through