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Article

Highwater Mark Collection after Post Tropical Storm Dorian and Implications for Prince Edward Island, Canada

1
Climate Research Lab, University of Prince Edward Island, Charlottetown, PE C1A 0P3, Canada
2
Canadian Centre for Climate Change and Adaptation, University of Prince Edward Island, Charlottetown, PE C0A 2A0, Canada
3
School of Climate Change and Adaptation, University of Prince Edward Island, Charlottetown, PE C0A 2A0, Canada
*
Authors to whom correspondence should be addressed.
Academic Editor: Francisco Javier Gracia Prieto
Water 2021, 13(22), 3201; https://doi.org/10.3390/w13223201
Received: 20 August 2021 / Revised: 4 November 2021 / Accepted: 6 November 2021 / Published: 12 November 2021
Prince Edward Island (PEI), Canada has been experiencing the consequences of a rising sea level and intense storms on its coasts in recent years. The most recent severe event, Post Tropical Storm Dorian (Dorian), began impacting Prince Edward Island on 7 September 2019 and lasted for over 20 h until the morning of 8 September 2019. The measurement of highwater marks (HWM) from the storm was conducted between 25 September and 25 October 2019 using a high precision, survey grade methodology. The HWM measured included vegetation lines, wrack lines, beach, cliff, and dune morphological features, and tide gauge data at 53 locations in the Province along coastal areas that are exposed to high tides, storm surge, high winds, and wave runup. Photos were taken to provide evidence on the nature of the HWM data locations. The data reveal that Dorian caused extensive coastal floods in many areas along the North and South Coast of Prince, Queens and Western Kings Counties of Prince Edward Island. The floods reached elevations in excess of 3.4 m at some locations, posing threats to local infrastructure and causing damage to natural features such as sand dunes in these areas. The HWM data can provide useful information for community and emergency response organizations as plans are developed to cope with the rising sea level and increased frequency of highwater events as predicted by researchers. As Dorian has caused significant damage in several coastal areas in PEI, better planning using an enhanced storm forecasting and coastal flood warning system, in conjunction with flood stage values, could possibly have reduced the impacts of the storm in the impacted areas. This could help enhance public understanding of the potential impacts in local areas and how they can prepare and adapt for these events in the future. View Full-Text
Keywords: Dorian; Prince Edward Island; high water marks; storm surge; flooding; wave run-up Dorian; Prince Edward Island; high water marks; storm surge; flooding; wave run-up
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MDPI and ACS Style

Jardine, D.E.; Wang, X.; Fenech, A.L. Highwater Mark Collection after Post Tropical Storm Dorian and Implications for Prince Edward Island, Canada. Water 2021, 13, 3201. https://doi.org/10.3390/w13223201

AMA Style

Jardine DE, Wang X, Fenech AL. Highwater Mark Collection after Post Tropical Storm Dorian and Implications for Prince Edward Island, Canada. Water. 2021; 13(22):3201. https://doi.org/10.3390/w13223201

Chicago/Turabian Style

Jardine, Donald E., Xiuquan Wang, and Adam L. Fenech. 2021. "Highwater Mark Collection after Post Tropical Storm Dorian and Implications for Prince Edward Island, Canada" Water 13, no. 22: 3201. https://doi.org/10.3390/w13223201

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