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river discharge

volume of water that flows through a stream channel

braided stream

steep rivers, uplifted by tectonic plates

meandering stream

riverine environment, channel and floodplain, pools deep scar at high flow, riffles shallow fast moving

river base level

lowest lever to which river may erode, usually sea level

flood recurrence interval

estimated average time between past floods and current events

beach berm

a heavily horizontal plateau on the beach face or backshore, formed by the deposition of beach material by wave action

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