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Sahara Desert

The Amazon Tall Tower Observatory is a joint Brazilian-German research station with a 325-meter tower making environmental observations in the Amazon.
Posted inFeatures

Africa’s Earth, Wind, and Fire Keep the Amazon Green

by J. Besl 23 March 202225 March 2022

Jet streams sprinkle North African dust over the Amazon, providing the rain forest with much needed nutrients. Changing wind patterns and increasing smoke may shift the system.

Plot showing measured atmospheric dust concentrations on 24 buoy filters, aerosol optical depth, and precipitation for two buoys.
Posted inEditors' Highlights

Seasonality in Saharan Dust Across the Atlantic Ocean

by P. Yang 26 August 20212 February 2022

The first time series of bi-weekly dust concentrations measured in-situ across the remote Atlantic Ocean.

Map of the mid Atlantic showing comparison between models and observations of where Saharan dust deposition occurs
Posted inEditors' Highlights

Saharan Dust Reaching the Americas Comes from El Djouf

by Alessandra Giannini 28 August 20202 February 2022

The Saharan dust that crosses the Atlantic and fertilizes the Amazon may be coming from the El Djouf region between Mauritania and Mali, which is farther west than previously thought.

Chart showing percent of gram-positive isolates from sampling
Posted inEditors' Highlights

Dangerous Bacteria Catch a Ride on Saharan Dust

by Gabriel Filippelli 19 June 20202 February 2022

Saharan dust events can spread bacterial pathogens over long distances, but we may be able to predict the human health risk from exposure.

Greenery forefronts an image of a dust storm clouding the horizon
Posted inNews

Dusting Off the Arid Antiquity of the Sahara

Sarah Derouin, Science Writer by Sarah Derouin 14 October 20192 March 2023

New research on the geochemistry of Canary Islands paleosols shows that the Sahara has been an arid dust producer for at least 4.8 million years.

Scientists point out red Saharan dust in a sediment core drilled from the Atlantic Ocean floor off West Africa.
Posted inNews

Podcast: When the Sahara Was Green

Liza Lester, staff writer by L. Lester 16 April 201929 November 2021

Past climate change likely motivated human migrations.

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Geophysical Research Letters
“Neural Networks Map the Ebb and Flow of Tiny Ponds”
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EDITORS' HIGHLIGHTS
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“Collaboration Helps Overcome Challenges in Air Quality Monitoring”
By Muki Haklay

EDITORS' VOX
Reviews of Geophysics
“What We Know and Don’t Know About Climate Tipping Elements”
By Seaver Wang

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