Linked from
The 12 pages that link to Tide gauge, each with the reason it gives.
Sea level riseRelated: Long tide-gauge records reveal local relative sea-level trends.
TsunamiRelated: Coastal gauges record tsunami arrival and help validate forecasts.
Sea-level changeRelated: Its records measure relative sea-level change over decades or centuries.
Sea levelRelated: Long tide-gauge records measure sea-level change relative to nearby land.
Relative sea levelRelated: Its records measure sea height relative to the land carrying the gauge.
Height above mean sea levelRelated: Long tide-gauge records help establish local mean sea level.