Next Article in Journal
Prediction of Risk Delay in Construction Projects Using a Hybrid Artificial Intelligence Model
Next Article in Special Issue
Information Technologies Supporting Emergency Management Controllers in New Zealand
Previous Article in Journal
Mind the Gap: Towards a Typology of Climate Service Usability Gaps
Previous Article in Special Issue
The Uncertainty Contagion: Revealing the Interrelated, Cascading Uncertainties of Managed Retreat
Open AccessEditor’s ChoiceArticle

National-Scale Built-Environment Exposure to 100-Year Extreme Sea Levels and Sea-Level Rise

1
National Institute of Water and Atmospheric Research (NIWA), 301 Evans Bay, Greta Point, Wellington 6021, New Zealand
2
National Institute of Water and Atmospheric Research (NIWA), Gate 10, Silverdale Road, Hillcrest, Hamilton 3216, New Zealand
*
Author to whom correspondence should be addressed.
Sustainability 2020, 12(4), 1513; https://doi.org/10.3390/su12041513
Received: 19 December 2019 / Revised: 13 February 2020 / Accepted: 17 February 2020 / Published: 18 February 2020
Coastal flooding from extreme sea levels will increase in frequency and magnitude as global climate change forces sea-level rise (SLR). Extreme sea-level events, rare in the recent past (i.e., once per century), are projected to occur at least once per year by 2050 along many of the world’s coastlines. Information showing where and how built-environment exposure increases with SLR, enables timely adaptation before damaging thresholds are reached. This study presents a first national-scale assessment of New Zealand’s built-environment exposure to future coastal flooding. We use an analytical risk model framework, “RiskScape”, to enumerate land, buildings and infrastructure exposed to a present and future 100-year extreme sea-level flood event (ESL100). We used high-resolution topographic data to assess incremental exposure to 0.1 m SLR increases. This approach detects variable rates in the potential magnitude and timing of future flood exposure in response to SLR over decadal scales. National built-land and asset exposure to ESL100 flooding doubles with less than 1 m SLR, indicating low-lying areas are likely to experience rapid exposure increases from modest increases in SLR expected within the next few decades. This highlights an urgent need for national and regional actions to anticipate and adaptively plan to reduce future socio-economic impacts arising from flood exposure to extreme sea-levels and SLR. View Full-Text
Keywords: extreme sea-levels; sea-level rise; flooding; exposure; built-environment; buildings; infrastructure; RiskScape extreme sea-levels; sea-level rise; flooding; exposure; built-environment; buildings; infrastructure; RiskScape
Show Figures

Figure 1

MDPI and ACS Style

Paulik, R.; Stephens, S.A.; Bell, R.G.; Wadhwa, S.; Popovich, B. National-Scale Built-Environment Exposure to 100-Year Extreme Sea Levels and Sea-Level Rise. Sustainability 2020, 12, 1513. https://doi.org/10.3390/su12041513

AMA Style

Paulik R, Stephens SA, Bell RG, Wadhwa S, Popovich B. National-Scale Built-Environment Exposure to 100-Year Extreme Sea Levels and Sea-Level Rise. Sustainability. 2020; 12(4):1513. https://doi.org/10.3390/su12041513

Chicago/Turabian Style

Paulik, Ryan; Stephens, Scott A.; Bell, Robert G.; Wadhwa, Sanjay; Popovich, Ben. 2020. "National-Scale Built-Environment Exposure to 100-Year Extreme Sea Levels and Sea-Level Rise" Sustainability 12, no. 4: 1513. https://doi.org/10.3390/su12041513

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop