The Monitoring Network

Sea Level and Meteorological Monitoring Stations

The current network of 12 robust and low maintenance Sea level Fine Resolution Acoustic Measuring Equipment (SEAFRAME) monitoring stations is providing excellent service.

All parameters having an effect on sea level (wind, air and sea temperatures, atmospheric pressure) are being sampled at one second intervals. Sea level readings are taken and averaged over three minutes and meteorological data is collected and averaged for 2 minutes at the hour.

CGPS Monitoring Stations

The Continuous Global Positioning System (CGPS) network monitors vertical movement in the earth's crust, such as subsidence or tectonic shifts, at the SEAFRAME tide gauges and adjacent land. Sea level data can then be adjusted to compensate for the earth's movement to within a millimeter, enabling the absolute sea level to be determined.

A wider range of detailed information is available in Facts Sheets section.