a better estimation of the sediment carrying capacity of the river as wide rivers with high stream power are exerting less force per surface area than a narrow river with the same stream power, as they are losing the same amount of energy but in the narrow river it is concentrated into a smaller area.

Critical Unit Stream Power

Critical unit stream power is the amount of stream power needed to displace a grain of a specific size, it is given by the equation:

where ?₀ is the critical shear

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