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Formula Used:
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Volume Per Unit Length Of Shoreline is the volume of sediment contained within a cross-sectional area of the beach, per unit length along the shoreline. It represents the amount of material needed to maintain or create a beach of specific dimensions.
The calculator uses the formula:
Where:
Explanation: The formula calculates the cross-sectional area of beach material required per meter of shoreline length, accounting for both the visible beach width and the submerged profile down to the depth of closure.
Details: Accurate volume calculation is crucial for coastal engineering projects, beach nourishment programs, and shoreline management. It helps determine the amount of sediment required for beach restoration and maintenance.
Tips: Enter beach width in meters, design berm elevation in meters, and depth of closure in meters. All values must be positive numbers.
Q1: What is depth of closure?
A: Depth of closure is the most landward depth seaward of which there is no significant change in bottom elevation for a characteristic time interval.
Q2: How is beach width measured?
A: Beach width is typically measured as the horizontal distance from the shoreline to a specific point inland, which can vary depending on tide, season, and human intervention.
Q3: What factors affect the design berm elevation?
A: Design berm elevation depends on storm surge levels, wave run-up, and the desired level of coastal protection.
Q4: Are there limitations to this calculation?
A: This calculation provides a simplified estimate and may need adjustment for complex beach profiles, varying sediment characteristics, or irregular bathymetry.
Q5: How is this volume used in practice?
A: This volume calculation is used to estimate the amount of sand required for beach nourishment projects and to assess sediment budgets for coastal management.