| Title | Latitudinal response of storm activity to abrupt climate change during the last 6,500 years |
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| Author | Yang, Y ; Maselli,
V; Normandeau, A; Piper, D J W; Li, M Z; Campbell, D C; Gregory, T; Gao, S |
| Source | Geophysical Research Letters vol. 47, issue 19, e2020GL089859, 2020 p. 1-12, https://doi.org/10.1029/2020GL089859 |
| Image |  |
| Year | 2020 |
| Alt Series | Natural Resources Canada, Contribution Series 20200153 |
| Publisher | American Geophysical Union |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf; html |
| Province | Eastern offshore region; Nova Scotia |
| NTS | 10M; 11D; 20P; 21A/01; 21A/02; 21A/08 |
| Area | Halifax; Atlantic Ocean; Emarald Bank; Emarald Basin; Scotian Shelf; La Have Basin; La Have Bank; Sambro Bank |
| Lat/Long WENS | -65.0000 -62.0000 45.0000 43.0000 |
| Subjects | marine geology; environmental geology; surficial geology/geomorphology; sedimentology; geochronology; paleontology; Nature and Environment; Science and Technology; Holocene; oceanography;
paleoclimatology; paleoenvironment; currents; current circulation; storms; climate effects; latitude; continental margins; continental shelf; marine sediments; core samples; fossils; microfossils; grain size analyses; modelling; Atlantic Meridional
Overturning Circulation (AMOC); Climate change; Phanerozoic; Cenozoic; Quaternary |
| Illustrations | location maps; geoscientific sketch maps; profiles; models; time series |
| Program | Marine Geoscience for Marine Spatial Planning |
| Released | 2020 09 21 |
| Abstract | This study examines the influence of the strength of Atlantic Meridional Overturning Circulation (AMOC) on storminess at different latitudes in the North Atlantic, based on a new 6.5-Kyr record of large
storms from the Scotian Shelf (Eastern Canada) that provides the first >3.5-ka record from middle latitudes. Comparison with a compilation of other paleostorm records shows that peaks in storminess are at times synchronous (4.5-2.5 and since 0.5 ka)
between low and middle latitudes but in the intervening period (2.5-0.5 ka) were latitudinally asynchronous. Synchronous (asynchronous) behavior correlates with sustained increase (decrease) of AMOC. Regime shifts in storm activity between low and
middle latitudes were more frequent since 2.5 ka, related to increased frequency of abrupt climate changes. These findings indicate a latitudinal response of storm activity due to abrupt climate change, which is critical to correctly assess future
storm risks along the North Atlantic coastline. |
| Summary | (Plain Language Summary, not published)
Through the analysis of sediment cores, we show a latitudinal response of storm activity due to abrupt climate change, which is critical to correctly
assess future storm risks along the North Atlantic coastline. |
| GEOSCAN ID | 326879 |
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