South Africa’s Vredefort impact structure is the largest on the planet, and researchers have now discovered the first proximal ejecta possibly deriving from the cataclysmic impact.
Africa
Posted inNews
Soil Saturation Dictates Africa’s Flood Severity
The most complete hydrological data set for the African continent reveals a surprise: Soil moisture, not heavy precipitation, best explains the timing of Africa’s most severe floods.
Posted inEditors' Vox
The Intersections of Environment, Health, and COVID-19 in Africa
A new special collection in GeoHealth seeks papers examining the link between environmental conditions and human health in Africa.
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Uganda Advances Toward Launching Its First Satellite
A new ground station and an expanded education network will lead to the launch of a security and Earth observation satellite in 2022.
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Forecasters Navigate a Highway to Success Around Lake Victoria
An early-warning system establishes international networks to help communities manage severe weather on Africa’s largest lake.
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Cheap Sensors Provide Missing Air Quality Data in African Cities
Calibrated low-cost sensors in Kinshasa and Brazzaville provide new information on pollution and help scientists model a way to improve access to air quality data.
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Landslides Mar the “Pearl of Africa”
Behind Uganda’s lavish beauty, climate change has taken its toll: Death, destroyed properties, and displaced communities increase as above-normal rainfall floods the country.
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Zooming In on Small Fires in Africa
By analyzing high-resolution satellite images, researchers found that fires burning in Africa were undercounted by as much as 80%.
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Scientists Map Africa’s Groundwater Recharge for the First Time
The continent-wide survey provides an assessment of the resilience of groundwater resources.
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Ancient, Acidic Lakes May Have Harbored Life
A new analysis of South African sediments hints that acidic lakes may have leached minerals necessary for biotic life.