Nearshore Sediment Distribution and Sand and Gravel Deposits in Lagoonal Areas, Northern Tongatapu, Tonga

Objective of the present survey are to define the surface sediment distribution, paying particular attention to potential construction materials; to relate sediment grain-size to bathymetry and sea bed morphology in an attempt to predict depositional environments; and to compare the results of this study with previous CCOP/SOPAC programmes in the are and to incorporate the data in a concurrently run coastal mapping exercise.