Discussion
Consider the following statements about the CERC formula.
1. It uses the longshore energy flux at the breaker line.
2. It contains no explicit grain size term.
3. It is more accurate than formulae including sediment properties.
Answer: A
The first two are correct and describe its form. The third is not so, since the omission of grain size is precisely the weakness that later formulations set out to address. Its simplicity is both its strength and its limitation.
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