Earth Imaging Journal: Remote Sensing, Satellite Images, Satellite Imagery
Breaking News
Image Shows Shanghai, Beijing, Massive Sedimentation
The Copernicus Sentinel-3A looks at an extremely populous portion...
Join GITA in Tampa – March 2019!
GITA is proud to announce along with our local...
CoreLogic and Esri Expand Premium Content Offerings
CoreLogic® (NYSE: CLGX), a leading global property information, analytics...
OGC Calls for Participation in Vector Tiles Pilot
The Open Geospatial Consortium (OGC) has released a Call...
Azteca Systems Releases Cityworks 15.3
Cityworks–Azteca Systems announced the release of Cityworks 15.3, the...

This composite image, made with data from the Visible Infrared Imaging Radiometer Suite on the Suomi NPP satellite, shows dust heading west toward South America and the Gulf of Mexico on June 25, 2014. The dust flowed roughly parallel to a line of clouds in the intertropical convergence zone, an area near the equator where the trade winds come together and rain and clouds are common.

This composite image, made with data from the Visible Infrared Imaging Radiometer Suite on the Suomi NPP satellite, shows dust heading west toward South America and the Gulf of Mexico on June 25, 2014. The dust flowed roughly parallel to a line of clouds in the intertropical convergence zone, an area near the equator where the trade winds come together and rain and clouds are common.

A piece of Africa—actually lots of pieces—began to arrive in the Americas in June 2014. On June 23, a lengthy river of dust from western Africa began to push across the Atlantic Ocean on easterly winds. A week later, the influx of dust was affecting air quality as far away as the southeastern United States.

Saharan dust has a range of impacts on ecosystems downwind. Each year, dust events like the one in the accompanying image deliver about 40 million tons of dust from the Sahara to the Amazon River Basin. The minerals in the dust replenish nutrients in rainforest soils, which are continually depleted by drenching, tropical rains. Research focused on peat soils in the Everglades show that African dust has been arriving regularly in South Florida for thousands of years as well.

Image courtesy of NASA.

Read the full story.

Comments are closed.