Towards an Understanding of the Morphodynamics and Sedimentary Evolution of Estuaries -- High-Resolution Geophysical Investigations Seaward of the Bann Estuary, Northern Ireland Coast -- A Seabed Classification Approach Based on Multiple Acoustic Sensors in the Hudson River Estuary -- Analysis of Land-Cover Shifts in Time and Their Significance -- Comparison of the Hydrodynamic Character of Thr…