Climate change and population growth are accelerating the need for diverse solutions to coastal protection. Traditionally, shorelines are armoured with conventional "hard" or "grey" engineering structures such as seawalls which are non-adaptive and come with significant economic, environmental and social costs. While hard structures have a place in coastal protection, alternative 'living shorelines' methods harness natural ecosystems to reduce coastal erosion and flooding and provide co-benefits such as carbon sequestration. They may consist of dunes, wetlands and biogenic reefs: either alone (‘soft approach’) or in combination with hard structures (‘hybrid approach’). The Living Shorelines Australia project (https://livingshorelines.com.au) compiled a database of nature-based ("soft" or "hybrid") coastal protection projects from across Australia. This database acts as a tool to help coastal managers make informed decisions by providing as many examples as possible of where these solutions have been used, how they were used, and how effective they are in different contexts. The information in this database was collected through direct engagement with coastal managers and stakeholders, a literature search, and informal internet searching. Under the NESP Marine and Coastal Hub Project 1.10, this database was established and populated with 138 projects identified through the process described above. Since then (2022), the database has continued to be updated by The University of Melbourne and now contains 200 nature-based coastal protection projects.

In collaboration with the Tasmanian State Emergency Service, water level monitoring instruments were installed to enable the collection of data in four estuaries identified as being vulnerable to coastal and compound flooding: Derwent Estuary, Huon Estuary, Georges Bay, and Macquarie Harbour. These instruments recorded fluctuations in water levels due to the combined influences of tide, river discharge, and weather events. The effects of the January 2022 Hunga Tonga-Hunga Ha’apai tsunami following a significant submarine volcanic explosion was also recorded in three out of the four estuaries. The datasets, comprising reduced water level observations, predicted water level, and residuals, are available from the IMAS Data Portal. Water level observations of varying duration were recorded between November 2020 – November 2022 for 14 sites in four Tasmanian estuaries. This work was undertaken by Karen Palmer as part of a PhD candidature at the University of Tasmania under the supervision of Dr Christopher Watson, Dr John Hunter, Assoc Prof Hannah Power (University of Newcastle), and Dr Rebecca Harris.