After years of planning and preparation, Christchurch’s new tsunami monitoring gauge at New Brighton Pier is operational. Photo: SuppliedA new gauge to detect imminent tsunamis installed at the New Brighton Pier is now operational after years of planning and preparation. It needed to be replaced because GNS Science staff could not access the site to service the tsunami gauge. The tsunami gauge uses pressure sensors and measures sea level variations by comparing pressures at the surface with atmospheric pressure and calculating a water height. The site is part of Land Information NZ’s network of 18 tsunami gauge sites around New Zealand’s coast.

Source: Otago Daily Times June 01, 2021 03:33 UTC