The Movement of Shingle Over the Sea Bed Close Inshore

Abstract

A recent paper in the Journal1 described experiments, carried out early in 1957 in the Orfordness area of S ffolk, into the movements of beach material. These experiments employed an improved version of a technique of radioactive marking first used on shingle at Scolt Head Island, Norfolk, in 1956.2? 3 The present paper describes further work carried out at Orfordness between 6 February and 13 April !959, which employed essentially the same methods for marking and tracing as were used in 1957. This new work was designed to extend and consolidate the information gained in the earlier experiments. Additional data on the extent to which material passed between the sea bed in the offshore zone and the beach were sought. It was hoped also to trace the precise manner in which material moved in and across the estuary of the River Ore. Plate 1 gives an aerial view of the experimental sites.