Synoptic climatology in Cuba. Part 4: The behavior of concatenated types of situations (1970-2022)
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Abstract
The classification of the Types of Synoptic Situations that affected the western and eastern halves of Cuba in the period 1970-2022 was the basis for developing the climatology of the concatenated types of synoptic situations that influence the Cuban archipelago and adjacent marine areas, by combining the codes of both regions that meet the classification principles. The objective of the work is to describe the main climatic characteristics of the atmospheric processes that contain the combination of influential synoptic situations, their multiannual variability, annual march and anomalies. In addition, the trends of several concatenated types were calculated, and maps were objectively prepared showing the main changes observed in regional isobaric patterns, representative of the concatenated types with a significant trend, providing new knowledge about the displacements that are occurring in the average position of the low pressure centers over the Caribbean Sea and Cuba during the peak of the hurricane season. as well as the genesis of the observed changes in the behavior of frontal systems, the increase in weak atmospheric pressure gradients, and the decrease in the length of the winter period in Cuba. Finally, three intervals or periods of years are established, characterized by the predominance of distinct groups of concatenated types, associated with the mechanisms of the general atmospheric circulation that influence North America.
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References
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