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Coastal Hazards

Climate change is accelerating the pace of change and presenting new challenges to coastal communities through sea level rise and the increased frequency and severity of storm events. Sea level may rise by over 1 metre in Hawke’s Bay by 2120, increasing the impact of erosion and inundation.

In response to these challenges, the strategy is looking at two main hazards along the coast:

Coastal erosion

Coastal erosion

When waves and storms wear down or carry away rock and sand along the coast, eroding the beach and foreshore areas

Coastal inundation

Coastal inundation

When low-lying land and near the coast is flooded from the sea during high tides or storms and floods that over-tops the beach.

Other hazards will be incorporated into the Strategy in future reviews, as new science and information becomes available, such as the risks associated with increasing groundwater levels that may be caused as sea levels increase.

We are basing our strategy on the most recent research, and are planning for sea level rise based on a variety of future possible scenarios based on current knowledge. Risk estimates for hazards along the coast will need to be reassessed as time goes on, our knowledge increases, and future impacts become clearer.

We get our latest research from:

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