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Substantial Global Influence of Anthropogenic Aerosols on Tropical Cyclones over the Past 40 Years

The published paper is available in Murakami et al. (2022) [1].

Over the last 40 years, anthropogenic aerosols have been significantly decreasing over Europe and the US owing to pollution control measures, whereas they have increased in South and East Asia because of the economic and industrial growth in these regions. However, it is not yet clear how the changes in anthropogenic aerosols have altered global tropical cyclone (TC) activity. In this study, we reveal that the decreases in aerosols over Europe and the United States have contributed to significant decreases in TCs over the Southern Hemisphere as well as increases in TCs over the North Atlantic, whereas the increases in aerosols in South and East Asia have exerted substantial decreases in TCs over the western North Pacific. These results suggest that how society controls future emissions of anthropogenic aerosols will exert a substantial impact on the world’s TC activity.

The physical mechanisms behind the changes in global tropical cyclones influenced by anthropogenic aerosols are explained in the following movie.

[1] Murakami, H., 2022: Substantial global influence of anthropogenic aerosols on tropical cyclones over the past 40 years. Sci. Adv., 8, eabn9493.
[Bibtex]

@Article{MURAKAMI2022C,
author = {Hiroyuki Murakami},
title = {Substantial global influence of anthropogenic aerosols on tropical cyclones over the past 40 years.},
year = 2022,
volume = {8},
pages = {eabn9493},
journal = SCA,
pdf = {https://www.science.org/doi/reader/10.1126/sciadv.abn9493},
doi = {10.1126/sciadv.abn9493},
}