<Li> Geological changes, e.g. erosion, backshore changes and emergence of headlands . </Li> <Li> Change in hydrodynamic forces, e.g. change in wave diffraction in headland and offshore bank environments . </Li> <Li> Change to hydrodynamic influences, e.g. the influence of new tidal inlets and deltas on drift . </Li> <Li> Alterations of the sediment budget, e.g. switch of shorelines from drift to swash alignment, exhaustion of sediment sources . </Li>

What is longshore drift and how does it affect a shoreline