Revising evidence of hurricane strikes on Abaco Island (The Bahamas) over the last 700 years

Abstract The northern Bahamas have experienced more frequent intense-hurricane impacts than almost anywhere else in the Atlantic since 1850 CE. In 2019, category 5 (Saffir-Simpson scale) Hurricane Dorian demonstrated the destructive potential of these natural hazards. Problematically, determining wh...

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Autores principales:	Tyler S. Winkler, Peter J. van Hengstum, Jeffrey P. Donnelly, Elizabeth J. Wallace, Richard M. Sullivan, Dana MacDonald, Nancy A. Albury
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0a270b193e04495597a37d73080998a2
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spelling	oai:doaj.org-article:0a270b193e04495597a37d73080998a22021-12-02T18:37:07ZRevising evidence of hurricane strikes on Abaco Island (The Bahamas) over the last 700 years10.1038/s41598-020-73132-x2045-2322https://doaj.org/article/0a270b193e04495597a37d73080998a22020-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-73132-xhttps://doaj.org/toc/2045-2322Abstract The northern Bahamas have experienced more frequent intense-hurricane impacts than almost anywhere else in the Atlantic since 1850 CE. In 2019, category 5 (Saffir-Simpson scale) Hurricane Dorian demonstrated the destructive potential of these natural hazards. Problematically, determining whether high hurricane activity levels remained constant through time is difficult given the short observational record (< 170 years). We present a 700-year long, near-annually resolved stratigraphic record of hurricane passage near Thatchpoint Blue Hole (TPBH) on Abaco Island, The Bahamas. Using longer sediment cores (888 cm) and more reliable age-control, this study revises and temporally expands a previous study from TPBH that underestimated the sedimentation rate. TPBH records at least 13 ≥ category 2 hurricanes per century between 1500 to 1670 CE, which exceeds the 9 ≥ category 2 hurricanes per century within 50 km of TPBH since 1850 CE. The eastern United States also experienced frequent hurricanes from 1500 to 1670 CE, but frequency was depressed elsewhere in the Atlantic Ocean. This suggests that spatial heterogeneity in Atlantic hurricane activity since 1850 CE could have persisted throughout the last millennium. This heterogeneity is impacted by climatic and stochastic forcing, but additional high-resolution paleo-hurricane reconstructions are required to assess the mechanisms that impact regional variability.Tyler S. WinklerPeter J. van HengstumJeffrey P. DonnellyElizabeth J. WallaceRichard M. SullivanDana MacDonaldNancy A. AlburyNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-17 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tyler S. Winkler Peter J. van Hengstum Jeffrey P. Donnelly Elizabeth J. Wallace Richard M. Sullivan Dana MacDonald Nancy A. Albury Revising evidence of hurricane strikes on Abaco Island (The Bahamas) over the last 700 years
description	Abstract The northern Bahamas have experienced more frequent intense-hurricane impacts than almost anywhere else in the Atlantic since 1850 CE. In 2019, category 5 (Saffir-Simpson scale) Hurricane Dorian demonstrated the destructive potential of these natural hazards. Problematically, determining whether high hurricane activity levels remained constant through time is difficult given the short observational record (< 170 years). We present a 700-year long, near-annually resolved stratigraphic record of hurricane passage near Thatchpoint Blue Hole (TPBH) on Abaco Island, The Bahamas. Using longer sediment cores (888 cm) and more reliable age-control, this study revises and temporally expands a previous study from TPBH that underestimated the sedimentation rate. TPBH records at least 13 ≥ category 2 hurricanes per century between 1500 to 1670 CE, which exceeds the 9 ≥ category 2 hurricanes per century within 50 km of TPBH since 1850 CE. The eastern United States also experienced frequent hurricanes from 1500 to 1670 CE, but frequency was depressed elsewhere in the Atlantic Ocean. This suggests that spatial heterogeneity in Atlantic hurricane activity since 1850 CE could have persisted throughout the last millennium. This heterogeneity is impacted by climatic and stochastic forcing, but additional high-resolution paleo-hurricane reconstructions are required to assess the mechanisms that impact regional variability.
format	article
author	Tyler S. Winkler Peter J. van Hengstum Jeffrey P. Donnelly Elizabeth J. Wallace Richard M. Sullivan Dana MacDonald Nancy A. Albury
author_facet	Tyler S. Winkler Peter J. van Hengstum Jeffrey P. Donnelly Elizabeth J. Wallace Richard M. Sullivan Dana MacDonald Nancy A. Albury
author_sort	Tyler S. Winkler
title	Revising evidence of hurricane strikes on Abaco Island (The Bahamas) over the last 700 years
title_short	Revising evidence of hurricane strikes on Abaco Island (The Bahamas) over the last 700 years
title_full	Revising evidence of hurricane strikes on Abaco Island (The Bahamas) over the last 700 years
title_fullStr	Revising evidence of hurricane strikes on Abaco Island (The Bahamas) over the last 700 years
title_full_unstemmed	Revising evidence of hurricane strikes on Abaco Island (The Bahamas) over the last 700 years
title_sort	revising evidence of hurricane strikes on abaco island (the bahamas) over the last 700 years
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/0a270b193e04495597a37d73080998a2
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Revising evidence of hurricane strikes on Abaco Island (The Bahamas) over the last 700 years

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