In-channel

Scour pool (sculpted pool) Position: In-channel   Form Pools may span the channel, hosting tranquil or standing flow at...

Sculpted run Position: In-channel   Form Stretches of uniform and relatively featureless bed, comprising fine-grained sediment. These smooth flow...

Sculpted point bar Position: In-channel   Form Bank-attached arcuate-shaped bar that resembles a point bar along the convex banks...

Sculpted lateral bar Position: In-channel   Form Bank-attached feature that resembles a depositional lateral bar. Forms along the low-sinuosity...

Forced bank-attached bar Position: In-channel   Form Any bank-attached bar form that is induced by a flow obstruction (e.g....

Compound bank-attached bar Position: In-channel   Form Bank-attached bar that comprises an array of smaller-scale geomorphic units. Generally composed...

Concave bank bench (convex bar) Position: In-channel   Form Bank-attached unit, often with a low ridge across the central...

Boulder berm (boulder bench) Position: In-channel   Form Elongate, bank-attached stepped feature inset against the bank. Can have a...

Ledge Position: In-channel   Form Distinctly stepped, flat-topped, elongate, bank-attached unit. Has a straight to gently curved planform, flanking...

Bench and point bench (oblique-accretion bench) Position: In-channel   Form Bench A distinctly stepped, elongate, straight to gently curved...

Ramp (chute channel fill) and point dune Position: In-channel   Form Ramp Coarse-grained, ramp-like feature that partially infills a...

Ridge and chute channels (cross-bar channels) Position: In-channel   Form Ridge Linear, elongate deposit formed atop a bar platform...

Tributary confluence bar (channel junction bar, eddy bar) Position: In-channel   Form Formed at, and immediately downstream of, the...

Point bar Position: In-channel   Form Bank-attached arcuate-shaped bar developed along the convex banks of meander bends. Bar forms...

Scroll bar Position: In-channel   Form Elongate ridge form developed along the convex bank of a bend. Commonly develop on...

Lateral bar (alternate or side bar) Position: In-channel   Form Bank-attached unit bar developed along low-sinuosity reaches of gravel-...

Forced mid-channel bar (pendant, lee or wake bar) Position: In-channel   Form A mid-channel bar form that is induced by...

Gravel sheet (basal or gravel lag) Position: In-channel   Form Relatively homogenous, thin/tabular bedload sheets that are deposited across...

Sand sheet Position: In-channel   Form Relatively homogeneous, uniform, tabular sand deposits which cover the entire bed. May consist...

Bedrock core bar Position: In-channel   Form Elongate bedrock ridge over which sediments have been draped and colonised by...

Boulder mound Position: In-channel   Form Linguoid shaped boulder feature with a convex surface cross-section. Comprise a cluster of...

Island Position: In-channel   Form Vegetated mid-channel bar. Can be emergent at bankfull stage. Generally compound forms, comprising an...

Expansion bar Position: In-channel   Form Coarse-grained (up to boulder size) mid-channel bar with a fan-shaped planform. Streamlined ridge...

Diagonal bar (diamond bar) Position: In-channel   Form Mid-channel unit bar, oriented diagonally to banks in gravel- and mixed-bed...

Transverse bar (linguoid bar) Position: In-channel   Form Mid-channel unit bar, oriented perpendicular to flow, generally found at points...

Longitudinal bar (median bar) Position: In-channel   Form Mid-channel, elongate, teardrop-shaped unit bar, formed in flow direction in gravel-...

Riffle and pool Position: In-channel   Form Riffle Topographic highs along an undulating reach-scale longitudinal profile. They occur at...

Pot hole Position: In-channel   Form Deep, circular scour features occur in bedrock.   Process description Pot holes are sculpted...

Plunge pool Position: In-channel   Form Deep, circular, scour feature formed at the base of a bedrock step.  ...

Forced pool Position: In-channel   Form These deeper areas along longitudinal profiles are scour features associated with irregularly spaced...

Forced riffle Position: In-channel   Form Longitudinally undulating gravel or boulder accumulations that act as local steps. Irregular spacing...

Run (glide, plane-bed) Position: In-channel   Form Stretches of uniform and relatively featureless bed, comprising bedrock or coarse clasts...

Rapid Position: In-channel   Form Very stable, steep, ridge-like sequences formed by arrangements of boulders in irregular transverse ribs...

Cascade Position: In-channel   Form Very stable, coarse-grained or bedrock features observed in steep, bedrock-confined settings. Comprise longitudinally and...

Step pool Position: In-channel   Form Formed on steep slopes (0.03-0.10 m m-1) channel-spanning stair-like features comprise bedrock, or boulder...

Bedrock step (waterfall) Position: In-channel   Form Locally resistant bedrock that forms channel-wide drops. Transverse waterfalls >1 m high separate...