Synoptic climatology in Cuba. Part 5: The relationships between atmospheric circulations and the types of synoptic situations
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Abstract
The study analyzed the behavior, changes, and current trends in atmospheric circulation processes influencing North America and Cuba, under the already perceptible effects of climate change. To this end, long series of daily data on the Elementary Circulation Mechanisms of the Northern Hemisphere and the Regional Circulation Processes influencing North America and Cuba were used, as well as, the Catalog of Synoptic Situation Types influencing the western and eastern halves of Cuba from 1970 to 2019. The results show important statistical relationships between these three groups of variables, demonstrating the close physical interrelationship of synoptic processes, operating from global and regional to local scales. The multiannual, seasonal and regional behaviors of the relationships between these circulation processes and the synoptic situations that influence Cuba are described, demonstrating that some relationships show persistent changes and increasing trends, which can be interpreted as the response of the atmospheric circulation to the impact of the forcing caused by the global warming process, which is statistically evident from specific change points, identified between the years 1992 and 2002. Finally, it is demonstrated that there is a marked and well-defined seasonal different genesis from the relationships between the circulation processes and the synoptic situations that influence the western and eastern halves of Cuba.
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