Tide Gauges - Acoustic, Pressure & Float

A tide gauge is a specialist instrument used to measure changes in sea level at a specific location along a coastline or in the open ocean. Tide gauges play a crucial role in monitoring tidal patterns, sea level rise, and coastal erosion. Tide gauges typically monitor either the position of the water surface (acoustic or mechanical float tide gauges), or the depth of the water (pressure-based tide gauges).