Evidence of tectonism based on differential uplift of the Falmouth Formation of Jamaica

Skrivanek, Alexandra; Dutton, Andrea; Stemann, Thomas A.; Vyverberg, K.; Mitrovica, J. X.

doi:10.1130/b31796.1

Cited by 2 publications

(1 citation statement)

References 49 publications

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“…The study area surrounding Kingston and Portmore is on the southeast coast of Jamaica. While there is significant evidence of past uplift in Jamaica (especially on the north coast, which is closer to the edge of the Caribbean plate [38][39][40]); the vertical land motion in Jamaica is on the order of less than 1 m/ka over the last 4000 years and, as such, is considered insignificant when considering sea level variability [23,41].…”

Section: Geographical Settingmentioning

confidence: 99%

Investigation of Multi-Timescale Sea Level Variability near Jamaica in the Caribbean Using Satellite Altimetry Records

Maitland,

Taylor,

Stephenson

2023

JMSE

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There is a dearth of studies characterizing historical sea level variability at the local scale for the islands in the Caribbean. This is due to the lack of reliable long term tide gauge data. There is, however, a significant need for such studies given that small islands are under increasing threat from rising sea levels, storm surges, and coastal flooding due to global warming. The growing length of satellite altimetry records provides a useful alternative to undertake sea level analyses. Altimetry data, spanning 1993–2019, are used herein to explore multi-timescale sea level variability near the south coast of Jamaica, in the northwest Caribbean. Caribbean basin dynamics and largescale forcing mechanisms, which could account for the variability, are also investigated. The results show that the average annual amplitude off the south coast of Jamaica is approximately 10 cm with a seasonal peak during the summer (July–August). The highest annual sea levels occur within the Caribbean storm season, adding to the annual risk. The annual trend over the 27 years is 3.3 ± 0.4 mm/yr when adjusted for Glacial Isostatic Adjustment (GIA), instrumental drift, and accounting for uncertainties. This is comparable to mean global sea level rise, but almost twice the prior estimates for the Caribbean which used altimetry data up to 2010. This suggests an accelerated rate of rise in the Caribbean over the last decade. Empirical Orthogonal Function (EOF) and correlation analyses show the long-term trend to be a basin-wide characteristic and linked to warming Caribbean sea surface temperatures (SSTs) over the period. When the altimetry data are detrended and deseasoned, the leading EOF mode has maximum loadings over the northwest Caribbean, including Jamaica, and exhibits interannual variability which correlates significantly with a tropical Pacific-tropical Atlantic SST gradient index, local wind strength, and the Caribbean Low Level Jet (CLLJ). Correlations with the El Niño Southern Oscillation (ENSO) in summer, seen in this and other studies, likely arise through the contribution of the ENSO to the SST gradient index and the ENSO’s modulation of the CLLJ peak strength in July. The results demonstrate the usefulness of altimetry data for characterizing sea level risk on various timescales for small islands. They also suggest the potential for developing predictive models geared towards reducing those risks.

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Section: Geographical Settingmentioning

confidence: 99%

Investigation of Multi-Timescale Sea Level Variability near Jamaica in the Caribbean Using Satellite Altimetry Records

Maitland,

Taylor,

Stephenson

2023

JMSE

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Colpophyllia natans From Tobago, a Novel Paleoclimate Archive for Reconstructing Sea Surface Temperature in the Tropical Atlantic

Ong

Goodkin

Guppy

et al. 2022

Paleoceanog and Paleoclimatol

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Sea surface temperature (SST) plays a key role in regulating ocean-atmosphere interactions and modulating climate variability (Deser et al., 2010;Folland et al., 1986). Our knowledge of the natural drivers of long-term SST changes and our ability to constrain past climate variability is often restricted by temporally short and spatially sparse instrumental and historical climate records (Gagan et al., 2000;Lough, 2010). Expanding the number of paleoclimate proxy records to increase geographical and temporal coverage of SST reconstructions will improve our understanding of future changes.Massive and long-lived scleractinian corals provide high temporal (sub-seasonal) resolution, long term climate and environmental records that have been used to reconstruct Earth's past climate on interannual to millennial timescales (e.g.,

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Evidence of tectonism based on differential uplift of the Falmouth Formation of Jamaica

Cited by 2 publications

References 49 publications

Investigation of Multi-Timescale Sea Level Variability near Jamaica in the Caribbean Using Satellite Altimetry Records

Investigation of Multi-Timescale Sea Level Variability near Jamaica in the Caribbean Using Satellite Altimetry Records

Colpophyllia natans From Tobago, a Novel Paleoclimate Archive for Reconstructing Sea Surface Temperature in the Tropical Atlantic

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