Storm surge contributions to flood hazards on Canada's Atlantic Coast
Abstract A numerical hydrodynamic model was used to simulate the generation and evolution of storm surges in Atlantic Canada in response to synoptic‐scale surface wind and atmospheric pressure fields. The modelling was conducted as part of a broader initiative to support community‐scale inundation m...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-09-01
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| Series: | Journal of Flood Risk Management |
| Subjects: | |
| Online Access: | https://doi.org/10.1111/jfr3.12800 |
| _version_ | 1811215271179845632 |
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| author | Mitchel Provan Sean Ferguson Enda Murphy |
| author_facet | Mitchel Provan Sean Ferguson Enda Murphy |
| author_sort | Mitchel Provan |
| collection | DOAJ |
| description | Abstract A numerical hydrodynamic model was used to simulate the generation and evolution of storm surges in Atlantic Canada in response to synoptic‐scale surface wind and atmospheric pressure fields. The modelling was conducted as part of a broader initiative to support community‐scale inundation modelling and coastal flood risk assessment for communities located in the Acadian Peninsula region of New Brunswick. The 44 largest storm surge events on record at a tide gauge proximate to the region of interest were simulated using the numerical model. Initially, a comparison between simulated storm surges and peak non‐tidal residuals from tide gauge records showed relatively poor agreement, producing an R2 value of 0.403. Model skill was improved by incorporating the influence of sea ice cover on air‐sea momentum transfer in the hydrodynamic model, and improved correlation with measured residuals was obtained by adding estimates of wave set‐up to the predicted storm surges, ultimately resulting in an R2 value of 0.803. The results of the simulations provided a basis for identifying distinct regional factors affecting storm surges and water level residuals and demonstrated conditions where wave set‐up and sea ice cover play an important role in contributing to extreme high water levels. |
| first_indexed | 2024-04-12T06:19:48Z |
| format | Article |
| id | doaj.art-e63b071ee60a45b8b2dc62ff518a4d77 |
| institution | Directory Open Access Journal |
| issn | 1753-318X |
| language | English |
| last_indexed | 2024-04-12T06:19:48Z |
| publishDate | 2022-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Flood Risk Management |
| spelling | doaj.art-e63b071ee60a45b8b2dc62ff518a4d772022-12-22T03:44:22ZengWileyJournal of Flood Risk Management1753-318X2022-09-01153n/an/a10.1111/jfr3.12800Storm surge contributions to flood hazards on Canada's Atlantic CoastMitchel Provan0Sean Ferguson1Enda Murphy2Ocean, Coastal and River Engineering Research Centre National Research Council Canada Ottawa Ontario CanadaOcean, Coastal and River Engineering Research Centre National Research Council Canada Ottawa Ontario CanadaOcean, Coastal and River Engineering Research Centre National Research Council Canada Ottawa Ontario CanadaAbstract A numerical hydrodynamic model was used to simulate the generation and evolution of storm surges in Atlantic Canada in response to synoptic‐scale surface wind and atmospheric pressure fields. The modelling was conducted as part of a broader initiative to support community‐scale inundation modelling and coastal flood risk assessment for communities located in the Acadian Peninsula region of New Brunswick. The 44 largest storm surge events on record at a tide gauge proximate to the region of interest were simulated using the numerical model. Initially, a comparison between simulated storm surges and peak non‐tidal residuals from tide gauge records showed relatively poor agreement, producing an R2 value of 0.403. Model skill was improved by incorporating the influence of sea ice cover on air‐sea momentum transfer in the hydrodynamic model, and improved correlation with measured residuals was obtained by adding estimates of wave set‐up to the predicted storm surges, ultimately resulting in an R2 value of 0.803. The results of the simulations provided a basis for identifying distinct regional factors affecting storm surges and water level residuals and demonstrated conditions where wave set‐up and sea ice cover play an important role in contributing to extreme high water levels.https://doi.org/10.1111/jfr3.12800coastal floodinghydrodynamic modellingsea icestorm surgeTELEMAC |
| spellingShingle | Mitchel Provan Sean Ferguson Enda Murphy Storm surge contributions to flood hazards on Canada's Atlantic Coast Journal of Flood Risk Management coastal flooding hydrodynamic modelling sea ice storm surge TELEMAC |
| title | Storm surge contributions to flood hazards on Canada's Atlantic Coast |
| title_full | Storm surge contributions to flood hazards on Canada's Atlantic Coast |
| title_fullStr | Storm surge contributions to flood hazards on Canada's Atlantic Coast |
| title_full_unstemmed | Storm surge contributions to flood hazards on Canada's Atlantic Coast |
| title_short | Storm surge contributions to flood hazards on Canada's Atlantic Coast |
| title_sort | storm surge contributions to flood hazards on canada s atlantic coast |
| topic | coastal flooding hydrodynamic modelling sea ice storm surge TELEMAC |
| url | https://doi.org/10.1111/jfr3.12800 |
| work_keys_str_mv | AT mitchelprovan stormsurgecontributionstofloodhazardsoncanadasatlanticcoast AT seanferguson stormsurgecontributionstofloodhazardsoncanadasatlanticcoast AT endamurphy stormsurgecontributionstofloodhazardsoncanadasatlanticcoast |