New Tool-Kit for Coastal Managers in Australia

Researchers from Geoscience Australia have developed a new tool-kit that is helping coastal managers to better understand how beaches are impacted by storm events.

The Australian coast is dynamic with an ever changing shoreline shaped by the normal action of tides, waves and storms. However, some storms cause significant erosion, causing an ongoing problem for some populated areas of the Australian coast.

The Resilience to clustered disaster events at the coast: storm surge project, supported by the Bushfire and Natural Hazards CRC has developed a comprehensive method for understanding the impact of storm events on the beach environment. The project studied two Australian locations where coastal erosion is an ongoing management issue.

In the first case study, which looked at Old Bar on the central-north coast of New South Wales, erosion is ongoing and has led to property loss in recent years. In the second case study, which looked at Adelaide’s metropolitan beaches, beach erosion has been actively managed since the 1970s and continues through Adelaide’s Living Beaches Strategy.

The models and information from the Old Bar project allow coastal managers to evaluate the impact of an event and to better respond to severe storms or multiple storm events.

According to James Guy from South Australia’s Department for Environment and Water, the new data, modelling tools and summary information for case study sites, are essential reference materials for coastal managers.

He confirmed that the Department for Environment and Water will use the outcomes of this research to refine their annual beach replenishment program, which is used to maintain adequate storm buffers for the protection of infrastructure along the Adelaide coast.

 

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