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African dust transport across North Atlantic

African dust transport across North Atlantic
Science
In a recently published paper, a research team, led by University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science Professor Emeritus Joseph M. Prospero, chronicles the history of African dust transport, including three independent "first" discoveries of African dust in the Caribbean Basin in the 1950s and 1960s.

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Every year, mineral-rich dust from North Africa s Sahara Desert is lifted into the atmosphere by winds and carried on a 5,000-mile journey across the North Atlantic to the Americas. African dust contains iron, phosphorus and other important nutrients that are essential for life in marine and terrestrial ecosystems, including the Amazon Basin. Wind-borne mineral dust also plays an important role in climate by modulating solar radiation and cloud properties.

The researchers also discuss the discovery in the 1970s and 1980s of the link between dust transport and African climate following an increase in dust transport to the Caribbean due to the onset of severe drought in the Sahel. Much of today s dust research is focused on North Africa as it is Earth s largest and most persistent source of dust.

Today, Prospero, nicknamed the "father of dust," is using a system of ground stations and satellites to study the effect that the global transport from the Sahara has on the atmospheric composition above the Caribbean.

Materials provided by . Original written by Diana Udel. Note: Content may be edited for style and length.

University of Miami Rosenstiel School of Marine & Atmospheric Science. "African dust transport across North Atlantic." ScienceDaily. ScienceDaily, 21 July 2021. .

University of Miami Rosenstiel School of Marine & Atmospheric Science. "African dust transport across North Atlantic." ScienceDaily. www.sciencedaily.com/releases/2021/07/210721172714.htm (accessed July 22, 2021).

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Dec. 21, 2018 — New research found that dust deposition speeds up snowmelt in Utah s Wasatch Mountains. Scientists found that a single dust storm on April 13, 2017, deposited half of all dust for the season. ...

July 9, 2018 — Across the US Southwest, severe drought and land?use change are projected to increase in the future, contributing to more frequent and intense dust storms and eventually dry dust fallout and dust ...

July 19, 2017 — Remote Saharan dust influences Earth s radiation budget and tropical North Atlantic ocean-atmosphere temperature variability that might even attenuate Hurricane activity. In a new research study ...
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