Offshore closure depth [length]

Wave energy at the breaker line per unit crest width [length-force/length]

Error function

Complementary error function

Wave height in the surf zone [length]

Wave height at breaking [length]

Average wave height [length]

Significant wave height [length]

Immersed weight transport rate [force/sec]

Empirical proportionality coefficient [dimensionless]

Empirical coefficients, treated as calibration parameters, used in the GENESIS

empirical predictive formula for longshore sand transport rate (Equation III-2-42)

Constants [dimensionless]

Dimensional normalizing constant [time3/force]

Average bottom slope from the shoreline to the depth of active longshore sand

transport [length-rise/length-run]

In-place sediment porosity (. 0.4) [dimensionless]

Proportion of fill left within project boundaries at a given time after project

initiation (Equation III-2-32)

Potential longshore sediment transport rate [force/time]

Line source or sink of sediment

Potential volumetric longshore transport rate [length3/time]

Local longshore transport per unit width offshore [length3/time/length]

Annual longshore transport to the right (looking seaward) [length3/time]

Net annual longshore transport [length3/time]

Annual longshore transport to the left (looking seaward) [length3/time]

Gross annual longshore transport [length3/time]

Volume longshore transport rate [length3/time]

Longshore Sediment Transport

III-2-111

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