Beach profiles allow you to identify changes in beach size and shape.

Beach profiles

You could also calculate the cross-sectional area of the beach in order to quantify changes in overall beach size.

GIS can be a useful way of presenting your data. In this example, located proportional symbols are used to show changes in sediment size along the shore.

Data presentation using GIS by ArcGIS / Esri, DigitalGlobe & Microsoft.

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