Extreme Sea Levels in Australia

Colour scale: 100 year ARI in metres above Australian Height Datum (AHD)

Predicted extreme sea level statistics around Australia

Click on coastal data points to access the statistics, including present day 100 year Average Recurrence Interval (ARI) levels, historical and seasonal variability derived from the numerical model. Blue markers contain data derived from measurements at 29 tide gauge sites.

Overview

Present day extreme sea level statistics available on this website were calculated from a 59 year (1958-2016) hindcast of sea levels around Australia. The high-resolution numerical model included the effects of astronomical tides, storm surges due to wind and pressure, and seasonal and interannual mean sea level (MSL) variability. The project was undertaken by the Coastal Oceanography Group at the University of Western Australia, funded by the Bushfire and Natural Hazard CRC .