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Galvin Formula:
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The Galvin formula estimates the total littoral transport in cubic meters per year based on deepwater wave height. It provides a simplified approach to calculate sediment transport along shorelines due to wave action.
The calculator uses the Galvin formula:
Where:
Explanation: The formula calculates the annual sediment transport volume based on the square of the deepwater wave height, multiplied by a constant coefficient of 1.65 million.
Details: Accurate estimation of littoral transport is crucial for coastal engineering projects, beach nourishment planning, shoreline management, and understanding sediment dynamics in coastal environments.
Tips: Enter deepwater wave height in meters. The value must be valid (wave height > 0).
Q1: What is littoral transport?
A: Littoral transport refers to the movement of sediments (sand, gravel) along the shoreline in the littoral zone, primarily driven by wave action and currents.
Q2: Why is deepwater wave height used in this formula?
A: Deepwater wave height is used because it represents the wave energy before it is affected by shallow water processes, providing a consistent basis for transport calculations.
Q3: What are typical values for littoral transport?
A: Littoral transport rates vary significantly depending on wave climate and coastal characteristics, ranging from thousands to millions of cubic meters per year.
Q4: Are there limitations to this formula?
A: This simplified formula may not account for all factors affecting sediment transport, such as grain size, beach slope, tidal currents, or complex wave climates.
Q5: When should this formula be used?
A: This formula provides a quick estimate for preliminary coastal studies but should be supplemented with more detailed numerical models for critical engineering projects.