A Field Guide to British Rivers - George Heritage

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Isolated boulder C U U U R R Lateral bar O O R C C C Lee bar R C O R R R Fine sediment drape O O O C C U C C C U Inner bend bar O O C C U O O C U Chute channel R R U U R C C C Chute channel bar R R U U C C C Lateral bar O O U C O C C C C Mid‐channel bar O O U C O R R R O Transverse bar O U C O O O Alluvial pool R U U U O U U U Riffle R C C U U U O Rapid R O U U Vertical eroding banks (river cliffs) R R U U O O C R

      U = Ubiquitous, C = Common, O = Occasional, R = Rare. BC= Bedrock cascade, SP= Step pool channel, BCPR = Boulder and cobble pool‐rapid, PBR = Plane bed rapid, B = Braided, W = Wandering, A = Anastomosed, PLR = Plane‐riffle, POR = pool‐riffle, PRBR = Pool‐riffle point bar, IST = Inactive single thread.

Channel type
Morphologic unit BC SPC BCPR PBR B W A PLR POR PRBR IST
Silt/Boulder berm R

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