tide gauges

Tide gauges are devices used to measure the height of the ocean's surface over time. They typically consist of a sensor or float installed in a fixed location along the shoreline or on the seafloor, which records water level changes caused by tides, storms, or sea level rise. These measurements help scientists monitor long-term changes in sea levels, predict flooding risks, and understand ocean behavior. Tide gauges provide valuable data for coastal management and climate research, helping communities prepare for and respond to changing shorelines.