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Publication Type
Journal Article
UWI Author(s)
Author, Analytic
Burn, Michael J; Palmer, Suzanne El
Author Affiliation, Ana.
n/a
Article Title
Atlantic hurricane activity during the last millennium
Medium Designator
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Connective Phrase
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Journal Title
Scientific Reports
Translated Title
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Reprint Status
Refereed
Date of Publication
2015
Volume ID
5
Issue ID
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Page(s)
128-138
Language
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Connective Phrase
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Location/URL
http:; www.nature.com/articles/srep12838
ISSN
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Notes
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Abstract
Hurricanes are a persistent socio-economic hazard for countries situated in and around the Main Development Region (MDR) of Atlantic tropical cyclones. Climate-model simulations have attributed their interdecadal variability to changes in solar and volcanic activity, Saharan dust flux, anthropogenic greenhouse gas and aerosol emissions and heat transport within the global ocean conveyor belt. However, the attribution of hurricane activity to specific forcing factors is hampered by the short observational record of Atlantic storms. Here, we present the Extended Hurricane Activity (EHA) index, the first empirical reconstruction of Atlantic tropical cyclone activity for the last millennium, derived from a high-resolution lake sediment geochemical record from Jamaica. The EHA correlates significantly with decadal changes in tropical Atlantic sea surface temperatures (SSTs; r?=?0.68; 18542008), the Accumulated Cyclone Energy index (ACE; r?=?0.90; 18512010), and two annually-resolved coral-based SST reconstructions (17732008) from within the MDR. Our results corroborate evidence for the increasing trend of hurricane activity during the Industrial Era; however, we show that contemporary activity has not exceeded the range of natural climate variability exhibited during the last millennium.....
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Keywords