Fig. A2.9: Schematic of the Bruun Rule: response of the beach/nearshore profile to a relative sea-level rise, based on a shift from one state of equilibrium profile to another, where the volume V1 of sediment lost from the backshore is conserved in the two-dimensional profile by being deposited offshore (V2), but results in a retreat of the backshore
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A schematic showing how sea-level rise affects coastal shore profiles, following the principles of the Bruun Rule. As sea level rises the upper shore erodes landward. This displaced sediment accumulates in the nearshore zone causing a rise in bed level. The volumes of eroded and accumulating sediment (V1 and V2 respectively) are equivalent.
