Original Paper

Theoretical and Applied Climatology

, Volume 113, Issue 1, pp 213-224

First online:

Spatial and temporal analysis of climate change in Hispañola

  • Caridad R. PérezAffiliated withDominican Republic Weather Service
  • , Mark R. JuryAffiliated withUniversity Puerto Rico MayaguezUniversity of Zululand Email author 

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Climate change in Hispañola is studied since 1900 using a variety of datasets. The longer station-observed temperature record has a significant trend of 0.012 °C/year, while the shorter reanalysis datasets exhibit faster warming, suggesting accelerating greenhouse radiative absorption and Hadley circulation. Rainfall trends are insignificant in the observed period, but a CMIP5 model simulation predicts a significant drying trend. The spatial pattern of climate trends was mapped with reanalysis fields and indicates a faster rate of warming over the eastern half of the island, where observations are dense and the drying trend is greatest. Northeasterly trade winds strengthen on the Atlantic side of the island. While trends intensify in the satellite era compared to the earlier 20th century, part of that effect is ascribed to an upturn in the Atlantic Multi-decadal Oscillation.