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Temporal evolution of hurricane activity: insights from decades of category 1–5 analysis

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Abstract

This study conducts a comprehensive analysis of hurricane trajectories and their variabilities in categories 1–5 over several decades for the North Atlantic Basin. Utilizing HURDAT2 data from 1961 to 2021, the analysis categorizes hurricanes based on the rate of pressure drop within a 6-h interval, revealing distinct patterns of intensification and weakening among different categories. The K-means clustering method synthesizes hurricane trajectories into representative paths, illustrating significant variations across decades. The research indicates that hurricanes in categories 1 and 2 predominantly originate from tropical depressions, with this trend slightly intensifying in categories 3 and 4. In contrast, Category 5 displayed variation, revealing an increased frequency in the subsequent decades. Additionally, the study analyzes the monthly distribution of hurricanes, identifying September as the peak month across all categories. The analysis further detects significant interannual variability with a noticeable intensification in hurricane activity since the 1990s, albeit with some reductions in the early 2010s. The Accumulated Cyclone Energy (ACE) is used to summarize cyclonic activities, with results indicating a decrease from 1970 to 1995, followed by a consistent surge over the last 15 years. This aligns with previous research suggesting an approximately 60% increase in ACE since the 1980s. Furthermore, an analysis of North Atlantic Basin data reflects a progressive increase in the frequency of named storms (NS) and hurricanes, particularly from 1991 onwards. In conclusion, the study highlights not only an escalating frequency of hurricanes, but also increased variability and unpredictability, necessitating further research to comprehend the underlying causes and evaluate potential socioeconomic and environmental consequences.

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The datasets generated during and/or analyzed during the current study are available upon request on the corresponding author.

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Acknowledgements

We would like to thank the “Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)” for the grant of productivity, for their support and contribution to the development of this article.

Funding

Conselho Nacional de Desenvolvimento Científico e Tecnológico—CNPq—Grant ID: 304681/2022-9.

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JAFN: conceptualization, methodology, data curation, formal analysis and investigation, visualization, writing. DM: conceptualization, methodology, data curation, analysis and investigation, visualization. WAG: writing—review and editing. MMC: writing—review and editing. JFOJ: review and editing.

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Correspondence to David Mendes.

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Neto, J.A.F., Mendes, D., Gonçalves, W.A. et al. Temporal evolution of hurricane activity: insights from decades of category 1–5 analysis. Environ Earth Sci 83, 202 (2024). https://doi.org/10.1007/s12665-024-11504-6

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  • DOI: https://doi.org/10.1007/s12665-024-11504-6

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