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...
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crwiley:10.1111/jfr3.12800 2024-09-09T20:07:34+00:00 Storm surge contributions to flood hazards on Canada's Atlantic Coast Provan, Mitchel Ferguson, Sean Murphy, Enda Defence Research and Development Canada 2022 http://dx.doi.org/10.1111/jfr3.12800 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfr3.12800 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jfr3.12800 en eng Wiley http://creativecommons.org/licenses/by-nc/4.0/ Journal of Flood Risk Management volume 15, issue 3 ISSN 1753-318X 1753-318X journal-article 2022 crwiley https://doi.org/10.1111/jfr3.12800 2024-07-30T04:24:02Z 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 R 2 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 R 2 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. Article in Journal/Newspaper Sea ice Wiley Online Library Canada Journal of Flood Risk Management 15 3 |
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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 R 2 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 R 2 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. |
author2 |
Defence Research and Development Canada |
format |
Article in Journal/Newspaper |
author |
Provan, Mitchel Ferguson, Sean Murphy, Enda |
spellingShingle |
Provan, Mitchel Ferguson, Sean Murphy, Enda Storm surge contributions to flood hazards on Canada's Atlantic Coast |
author_facet |
Provan, Mitchel Ferguson, Sean Murphy, Enda |
author_sort |
Provan, Mitchel |
title |
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_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_sort |
storm surge contributions to flood hazards on canada's atlantic coast |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1111/jfr3.12800 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfr3.12800 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jfr3.12800 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Journal of Flood Risk Management volume 15, issue 3 ISSN 1753-318X 1753-318X |
op_rights |
http://creativecommons.org/licenses/by-nc/4.0/ |
op_doi |
https://doi.org/10.1111/jfr3.12800 |
container_title |
Journal of Flood Risk Management |
container_volume |
15 |
container_issue |
3 |
_version_ |
1809941081507233792 |