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TitleNorthwestern Pacific tropical cyclone activity enhanced by increased Asian dust emissions during the Little Ice Age
AuthorYang, Y; Piper, D J WORCID logo; Xu, M; Gao, JORCID logo; Jia, J; Normandeau, AORCID logo; Chu, D; Zhou, L; Wang, Y P; Gao, S
SourceNature Communications vol. 13, 2022 p. 1-12, Open Access logo Open Access
Alt SeriesNatural Resources Canada, Contribution Series 20220039
Mediapaper; digital; on-line
File formatpdf
Lat/Long WENS 100.0000 180.0000 60.0000 -20.0000
Lat/Long WENS 120.0000 124.0000 33.0000 27.0000
Subjectsenvironmental geology; temperature; climatology
Illustrationslocation maps; plots; graphs
ProgramMarine Geoscience for Marine Spatial Planning
Released2022 03 31
AbstractInstrumental records reveal that intense tropical cyclone (TC) activity varies with tropical sea surface temperature (SST) on annual-decadal scales. Drivers of intense TC activity at the centennial-millennial scale are less clear, due to the sparseness of pre-observational reconstructions. Here, we present a new 2 kyr continuous activity record of intense TCs from offshore eastern China. Our reconstruction indicates that this site witnessed enhanced TC activity during relatively warm periods, with a widespread increase in TC activity during the later part of the Little Ice Age. This latter observation reveals that enhanced TC activity was synchronized with increased Asian dust emissions during the Little Ice Age. TC activity was also lower in the late Roman Warm Period, when SST was higher but Asian dust emissions were lower than in the early phase. Such patterns suggest a centennial-millennial link between TC climatology and a combination of SST changes and Asian dust levels.
Summary(Plain Language Summary, not published)
Availability of dust in the atmosphere enhances the intensity of tropical cyclones in the West Pacific Ocean. This paper presents a 2000 year record of cyclone intensity and dust generation in China. A similar effect has been suggested for the Atlantic Ocean and increased desertification with global warming may result in more intense hurricanes impacting eastern Canada.

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