Summary: Saharan dust outbreaks emerge from the coast of Africa every 3-5 days during the summer, can reach as far west as the United States and Central America, and cover vast areas of the Atlantic (sometimes as large as the lower 48 United States). These outbreaks, also known as the Saharan Air Layer, contain dry, dusty air and unfavorable winds that can suppress tropical cyclone activity. This study examines the relationship between Saharan dust and tropical cyclone activity over different regions of the North Atlantic Ocean for the years 2003-2018.
■ Important Conclusions:
- Atlantic hurricane seasons with more Saharan dust outbreaks tend have less tropical cyclone activity.
- Year-to-year fluctuations in the amount of dust over the Atlantic are linked to shifts in large-scale patterns of winds, moisture, and sea surface temperature across the basin, factors that are known to influence tropical cyclone activity.
The full article is available at https://acp.copernicus.org/articles/20/15357/2020/. For more information, contact email@example.com.