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Nickpoint

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Nickpoint

Nickpoint, in surface hydrology

Hydrology

Hydrology is the study of the movement, distribution, and quality of water throughout the Earth, and thus addresses both the hydrologic cycle and water resources....
, is the location along the profile of a stream

Stream

A stream is a body of water less than 60 feet wide with a current , confined within a stream bed and stream banks. Depending on its locale or certain characteristics, a stream may be referred to as brook, beck, Burn , creek, crick, kill, lick , rill, river syke, bayou, rivu...
at which a sudden gradient

Stream gradient

Stream gradient is the ratio of drop in a stream per unit distance, usually expressed as Foot per mile or meters per kilometer. A high gradient indicates a steep slope and rapid volumetric flow rate of water ; whereas a low gradient indicates a more nearly level stream bed and sluggishly moving water, that may be able to carry only small amo...
change occurs. The most easily recognized example is the crest of a waterfall

Waterfall

A waterfall is usually a geology geologic formation resulting from water, often in the form of a stream, flowing over an erosion-resistant rock formation that forms a nickpoint, or sudden break in elevation....
. In geologic

Geology

Geology is the science and study of the solid and liquid matter that constitute the Earth. The field of geology encompasses the study of the composition, structural geology, physical properties, dynamics, and History of the Earth of Earth materials, and the processes by which they are formed, moved, and changed....
evolution, the nickpoint of a watercourse

Watercourse

A watercourse is any flowing body of water. These include rivers, streams, brooks, anabranches et cetera....
often migrates upstream as bedrock cutting gradually takes place.

In Australia, a nickpoint is often described as a "head cut".

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Encyclopedia

Nickpoint, in surface hydrology

Hydrology

Hydrology is the study of the movement, distribution, and quality of water throughout the Earth, and thus addresses both the hydrologic cycle and water resources....
, is the location along the profile of a stream

Stream

A stream is a body of water less than 60 feet wide with a current , confined within a stream bed and stream banks. Depending on its locale or certain characteristics, a stream may be referred to as brook, beck, Burn , creek, crick, kill, lick , rill, river syke, bayou, rivu...
at which a sudden gradient

Stream gradient

Stream gradient is the ratio of drop in a stream per unit distance, usually expressed as Foot per mile or meters per kilometer. A high gradient indicates a steep slope and rapid volumetric flow rate of water ; whereas a low gradient indicates a more nearly level stream bed and sluggishly moving water, that may be able to carry only small amo...
change occurs. The most easily recognized example is the crest of a waterfall

Waterfall

A waterfall is usually a geology geologic formation resulting from water, often in the form of a stream, flowing over an erosion-resistant rock formation that forms a nickpoint, or sudden break in elevation....
. In geologic

Geology

Geology is the science and study of the solid and liquid matter that constitute the Earth. The field of geology encompasses the study of the composition, structural geology, physical properties, dynamics, and History of the Earth of Earth materials, and the processes by which they are formed, moved, and changed....
evolution, the nickpoint of a watercourse

Watercourse

A watercourse is any flowing body of water. These include rivers, streams, brooks, anabranches et cetera....
often migrates upstream as bedrock cutting gradually takes place.

In Australia, a nickpoint is often described as a "head cut".

See also

Stream pool
Stream pool

A stream pool, in hydrology, is a stretch of a river or stream in which the water depth is above average and the stream velocity is quite low. Such pools can be important for juvenile fish habitat, especially where many stream reaches attain high summer temperatures and very low flow dry season characteristics....

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