This change will occur at the following locations:
- Bremer Bay
- Busselton - Port Geographe
- Caddadup
- Cape Bouvard
- Harvey Estuary
- Jurien Bay
- Mandurah
- Peel Inlet
- Two Rocks
The total measurement from the water’s surface to the seabed is not changing. Only the tide gauge ‘zero point’ is being updated. As a result, tide heights will appear lower, while charted water depths will appear higher.
This update aligns DTMI’s tidal datums with those used by the Bureau of Meteorology (BOM) and the Australian Hydrographic Office (AHO).
