Next Article in Journal
Variations in Greenhouse Gas Fluxes in Response to Short-Term Changes in Weather Variables at Three Elevation Ranges, Wakiso District, Uganda
Previous Article in Journal
Dual-Polarization Radar Observations of Deep Convection over Lake Victoria Basin in East Africa
Open AccessArticle

Influences of the Atlantic and Pacific Oceans on Rainy Season Precipitation for the Southernmost Caribbean Small Island State, Trinidad

1
Environmental Physics Laboratory, Department of Physics, Faculty of Science and Technology, The University of the West Indies, St. Augustine, Trinidad and Tobago
2
Instituto Nazionale Di Geofisica e Vulcanologia/Centro Euro-Mediterraneo sui Cambiamenti Climatici, Viale C. Berti Pichat 6/2, 40128 Bologna, Italy
*
Author to whom correspondence should be addressed.
Atmosphere 2019, 10(11), 707; https://doi.org/10.3390/atmos10110707
Received: 2 November 2019 / Revised: 9 November 2019 / Accepted: 10 November 2019 / Published: 13 November 2019
(This article belongs to the Section Meteorology)
Seasonal rainfall in the Caribbean Basin is known to be modulated by sea surface temperature anomalies (SSTAs) in the Atlantic and Pacific Oceans, and particularly those in the Equatorial Pacific and Atlantic and the Tropical North Atlantic. However, little is known about how these major oceans influence the seasonal precipitation of individual small island states within the region as climate variability at the island-scale may differ from the Caribbean as a whole. Correlation and composite analyses were determined using monthly rainfall data for the southernmost island of the Caribbean, Trinidad, and an extended area of global SSTAs. In addition to the subregions that are known to modulate Caribbean rainfall, our analyses show that sea surface temperatures (SSTs) located in the subtropical South Pacific, the South Atlantic, and the Gulf of Mexico also have weak (r2 < 0.5) yet significant influences on the islands’ early rainy season (ERS) and late rainy season (LRS) precipitation. Composite maps confirm that the South Pacific, South Atlantic, and the Gulf of Mexico show significant SSTAs in December–January–February (DJF) and March–April–May (MAM) prior to the ERS and the LRS. Statistical models for seasonal forecasting of rainfall at the island scale could be improved by using the SSTAs of the Pacific and Atlantic subregions identified in this study. View Full-Text
Keywords: climate variability; precipitation; sea surface temperatures; early rainy season; late rainy season; correlations; composites; Trinidad; Caribbean; rainfall climate variability; precipitation; sea surface temperatures; early rainy season; late rainy season; correlations; composites; Trinidad; Caribbean; rainfall
Show Figures

Figure 1

MDPI and ACS Style

Mc Shine, N.D.; Clarke, R.M.; Gualdi, S.; Navarra, A.; Chadee, X.T. Influences of the Atlantic and Pacific Oceans on Rainy Season Precipitation for the Southernmost Caribbean Small Island State, Trinidad. Atmosphere 2019, 10, 707.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop