SeaRise data backs predictions for Ka¯ piti
Preparing for coastal changes vital, says district council
New national sea-level rise data shows the importance of communities planning for coastal changes and supports the science behind Ka¯piti Coast District Council’s Takutai Ka¯piti coastal adaptation project, project manager Lyndsey Craig said.
“Council has been doing extensive work over the past couple of years to understand the potential physical impacts of sea-level rise on our community over the next 30, 50 and 100 years.
“We need to understand where, when and how big the impacts of sealevel rise will be on our coast over time so we can plan responsibly for investing in expensive infrastructure, and for homeowners and buyers to understand the risks to their properties. Communities that plan for change are more resilient and ready when a response is needed.”
The NZ SeaRise: Te Tai Pari O Aotearoa programme has released location-specific sea-level rise projections to the year 2300 for every 2km of the coast of Aotearoa New Zealand.
“The new data from the NZ SeaRise programme supports the projections produced for Ka¯piti by coastal environmental and engineering consultancy Jacobs New Zealand Ltd in their recent report.
“The further out we look, the greater the uncertainty we face.
“This is because of the complex ‘feedback loops’ contributing to sealevel
rise, such as degrees of ocean warming and the rate of polar ice melt as well as unpredictability around vertical land movement, which can be slow and steady, or sudden and dramatic such as we saw after the Kaikoura earthquake.
“The Jacobs report gives us an indication of the full range of possible scenarios from likely to worst case.
“Consideration of options for adapting to sea-level rise is under way with the input of the new Coastal Advisory Panel. The panel still has a lot of work ahead of it, reviewing and understanding the potential social, cultural, economic and ecological impacts of sea-level rise on our district and will be working with the community to consider how our district needs to adapt.
“We look forward to supporting the panel’s engagement with the community over the coming year.”