Hurricane Alley SST Variability in 2005 and 2006*

Chiodi, A. M.; Harrison, D. E.

doi:10.1175/2008jcli2084.1

Cited by 2 publications

(1 citation statement)

References 31 publications

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“…Barbuda is within what is considered the hurricane alley (see Figure 1), which is the zone of warm sea surface temperature that extends from Eastern Atlantic to the Gulf of Mexico, and which fuels hurricane-level storm formation and intensity (Chiodi and Harrison, 2008). Today, the hurricane season spans from June to November every year.…”

Section: Geomorphological and Cultural Settingmentioning

confidence: 99%

Climate change, site formation, and indigenous use of coastlines in Barbuda

Rivera-Collazo

Perdikaris

2023

The Holocene

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This article explores the landscape dynamics at the island of Barbuda in the context of changing climate to understand (1) the environmental setting of indigenous settlements; (2) the impacts of current coastal processes; and (3) the potential threats moving forward toward increasing pressure of climate change. Focusing on the site of Seaview, on the east coast of Barbuda, we use geoarchaeological methods to reconstruct the ancient geomorphological setting, investigate changes post-abandonment, and identify the hazards faced under future sea-level projections. Our study shows that (1) sea level stabilization after the Mid-Holocene allowed the formation of coral reefs, seagrass beds and other benthic ecosystems that allowed for biogenic sediment accumulation and growth of sand dune retention ridges. (2) These environmental characteristics, including rich marine food sources, supported the establishment and flourishing of Seaview starting ca. 160 BC. (3) Occupation ended at some point between AD960 and 1000. This change coincided with a period of increased storminess, higher SSTs, and possible coral reef mortality that affected both food availability and sediment supply. (4) Lack of sediments triggered progressive sand dune erosion that continues today and has left the sand dune ridge past the tipping point of erosion. (5) Looking into a future of rapidly changing climate, sea level rise poses a severe and devastating threat to the land- and seascapes of Barbuda. With the lowland coastal plain at or only slightly above current sea level, a rate of SLR comparable to Mid-Holocene rates, and rapid loss of sand dune ridges and coral reefs as natural barriers, it is just a matter of time before the lowlands become transformed beyond recognition. The results of this analysis can be used to improve long-term management of the heritage resources of Barbudans and shed light on parallel challenges experienced on other tropical coastal locations.

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Section: Geomorphological and Cultural Settingmentioning

confidence: 99%

Climate change, site formation, and indigenous use of coastlines in Barbuda

Rivera-Collazo

Perdikaris

2023

The Holocene

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The Annual Range of Southern Hemisphere SST: Comparison with Surface Heating and Possible Reasons for the High-Latitude Falloff*

Chiodi

Harrison

2010

Journal of Climate

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Globally, the seasonal cycle is the largest single component of observed sea surface temperature (SST) variability, yet it is still not fully understood. Herein, the degree to which the structure of the seasonal cycle of Southern Hemisphere SST can be explained by the present understanding of surface fluxes and upper-ocean physics is examined. It has long been known that the annual range of Southern Hemisphere SST is largest in the midlatitudes, despite the fact that the annual range of net surface heat flux peaks well poleward of the SST peak. The reasons for this discrepancy (''falloff of the annual range of SST'') are determined here through analysis of net surface heat flux estimates, observed SST, and mixed layer depth data, and results from experiments using two different one-dimensional ocean models. Results show that (i) the classical explanations for the structure of the annual range of SST in the Southern Hemisphere are incomplete, (ii) current estimates of surface heat flux and mixed layer depth can be used to accurately reproduce the observed annual range of SST, and (iii) the prognostic mixed layer models used here often fail to adequately reproduce the seasonal cycle at higher latitudes, despite performing remarkably well in other regions. This suggests that more work is necessary to understand the changes of upper-ocean dynamics that occur with latitude.

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Hurricane Alley SST Variability in 2005 and 2006*

Cited by 2 publications

References 31 publications

Climate change, site formation, and indigenous use of coastlines in Barbuda

Climate change, site formation, and indigenous use of coastlines in Barbuda

The Annual Range of Southern Hemisphere SST: Comparison with Surface Heating and Possible Reasons for the High-Latitude Falloff*

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