Paleotempestology database for the western North Atlantic basin

Oliva, Frank; Viau, André E.; Peros, Matthew; Bouchard, Marc

doi:10.1177/0959683618782598

Cited by 27 publications

(24 citation statements)

References 64 publications

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“…The models were operated from 1 September 2002 to 31 August 2005. This period covered the highest storm surge height ever recorded in Halifax, Nova Scotia, between 1919 and 2020 (1.6 m; Oliva et al, 2018) that occurred on 29 September 2003 (Hurricane Juan; Figure 1a). Based on the core locations and possible bank sources, we selected the sediment dynamics analysis site on the nearest bank at 43.33°N, 62.98°W to the southeast of Core 93‐07 with a water depth of 105 m (Figure 1b).…”

Section: Methodsmentioning

confidence: 94%

Latitudinal Response of Storm Activity to Abrupt Climate Change During the Last 6,500 Years

Yang

Maselli

Normandeau

et al. 2020

Geophysical Research Letters

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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. Plain Language Summary The Atlantic Meridional Overturning Circulation (AMOC) is one of the well-established tipping elements of the Earth's climate system, redistributing heat and thus influencing storm activity. Yet critical questions remain unanswered regarding the latitudinal response of storm activity to AMOC-related abrupt climate change. Here, we present a storminess record north of 34°N that goes back to >3.5 ka, namely, a 6.5-Kyr record from the Scotian Shelf (Eastern Canada). We describe for the first time the impact of abrupt climate change on storminess at different latitudes in the North Atlantic in response to changes in AMOC strength. This is based on a comparison of our study with a compilation of other paleostorm records. Synchronous (asynchronous) behavior correlates with sustained increase (decrease) of AMOC. Such information is fundamental to correctly assess future storm risks along the North Atlantic coastline, especially in densely populated coastal areas.

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Section: Methodsmentioning

confidence: 94%

Latitudinal Response of Storm Activity to Abrupt Climate Change During the Last 6,500 Years

Yang

Maselli

Normandeau

et al. 2020

Geophysical Research Letters

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“…and Ti is depleted in coarse-grained sediment fractions, Br/Ti relates to high magnitude storms that transport coarse sediment rich in marine organic matter into Lake Robinson (Oliva et al, 2018). In this way, increased magnitude and frequency of tropical cyclones was detected for CE 1475-1670, i.e.…”

Section: A C C E P T E Dmentioning

confidence: 92%

“…Another wind-related study tested long-term changes of tropical cyclone activity in the western North Atlantic region. At Robinson Lake, a lagoon at the Atlantic coast of Nova Scotia (Canada) and close to the north-western limit of tropical cyclone pathways, Br/Ti indicates past cyclone activity (Oliva et al, 2018). As Br is a proxy for marine organic matter (Ziegler et al, 2008) M A N U S C R I P T…”

Section: Palaeoseismic Studiesmentioning

confidence: 99%

Current perspectives on the capabilities of high resolution XRF core scanners

Croudace

Löwemark

Tjallingii

et al. 2019

Quaternary International

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The introduction and application of high resolution XRF core scanners has made an enormous contribution to palaeoclimate science over the last two decades. These core scanners have become essential analytical tools for the investigation of sedimentary and other natural cumulative records of environmental change. Their widespread adoption by the environmental and geoscience communities has had a significant impact on the ability to systematically record high resolution chemical profiles in marine and lake sediments and soils. The range of applications has broadened beyond sedimentology and palaeoclimatology and now extends into scanning samples of speleothems, corals, mumiyo mounds, rocks, sedimentary nodules, archaeological artefacts, tree sections and melt segregations. Other areas exploiting the capability of XRF core scanners are mineral exploration, geotechnical characterisation, soil remediation studies and carbon capture and storage research. As a consequence of their ability to efficiently determine detailed, non-destructive elemental records in sediments and soils, scientific papers published since the year 2000 now number more than 1000.

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“…Few studies have concentrated on the Caribbean basin off Central America (Denommee, Bentley, & Droxler, 2014;Dunning & Houston, 2011;McCloskey & Keller, 2009). Oliva, Peros, and Viau, (2017); Oliva, Viau, Peros, and Bouchard, (2018) in their overview from the western North Atlantic Basin found that out of nine studies on Central America, six were focused on Belize and none were specifically related to Honduras. Also, a review of the region by Adomat and Gischler (2017) suggests that certain time intervals saw an increase in the frequency of storm activity.…”

Section: Rainfall Patterns From the Mayan Classic Periodmentioning

confidence: 99%

Effects of hurricanes, mudslides, flooding, and riverine erosion on the erasure of archaeological sites in tropical, highland Honduras

et al. 2019

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Site destruction and obfuscation are significant processes that hinder archaeological interpretations. This article focuses on a few natural taphonomic agencies impinging on archaeological site preservation in highland Central American settings. Precipitation and drainage are especially crucial in these riverine environments. Access to water for consumption and agriculture were vital factors in the determination of settlement patterns. Over time, a mixture of both gradual and catastrophic processes ranging from moderate rainstorms to hurricanes are known to trigger flooding, riverine erosion, and landslides with the potential to destroy or obscure vulnerable valley sites. Examples are given of Classic Period (A.D. 200–900) archaeological sites from the Cucuyagua and Sensenti valleys in western Honduras affected by catastrophic weather events during occupation and after site abandonment. Mudslides and landslides, in particular, are highlighted as significant destructive processes that remain under‐discussed in regional literature. Furthermore, we highlight the possible causal role of hurricanes in provoking both landslides and flooding. Finally, we consider the impact of these events in our particular study area.

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Paleotempestology database for the western North Atlantic basin

Cited by 27 publications

References 64 publications

Latitudinal Response of Storm Activity to Abrupt Climate Change During the Last 6,500 Years

Latitudinal Response of Storm Activity to Abrupt Climate Change During the Last 6,500 Years

Current perspectives on the capabilities of high resolution XRF core scanners

Effects of hurricanes, mudslides, flooding, and riverine erosion on the erasure of archaeological sites in tropical, highland Honduras

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