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Latest Mineral dust Stories

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2010-10-06 13:14:32

Using data from several research satellites, scientists will spend the next three years trying to understand the climate impacts of about 770 million tons of dust carried into the atmosphere every year from the Sahara Desert. Some Saharan dust falls back to Earth before it leaves Africa. Some of it streams out over the Atlantic Ocean or Mediterranean Sea, carried on the wind as far away as South America and the southeastern U.S. All of it has an as-yet unmeasured impact on Earth's energy...

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2010-09-20 13:56:47

Dust has been blowing into the Eastern Atlantic Ocean from Africa's Saharan Desert, and a NASA satellite captured some of that dust east of Tropical Storm Julia. NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) instrument on the Terra satellite captured a visible image of Tropical Storm Julia on Sept. 18 at 13:50 UTC (9:50 a.m. EDT) and noticed a large area of Saharan dust over the Atlantic Ocean, to Julia's east. On Sept. 20 at 5 a.m. EDT, Julia was still holding on to tropical...

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2010-06-02 10:35:00

Inputs of dust from the Sahara desert could change the composition of microbial communities in the (sub)tropical eastern North Atlantic say Southampton researchers writing this month in the journal FEMS Microbiology Letters. When high winds blow over the Sahara, dust particles consisting of soil particles are lifted high into the atmosphere, blown over the sea, and then deposited on the ocean surface. "Desert dust particles contain nutrients such as iron that can boost the production of tiny...

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2010-05-18 09:15:03

The air we breathe doesn't always come from our own backyard. In fact, sometimes it doesn't even come from our neighbors. On April 22, 2010, a NASA satellite captured the appearance of a large dust cloud over the eastern coast of United States that originated on the other side of the world -- in China. "Dust can stimulate the production of more clouds, altering local weather and potentially the climate," said Zhoayan Liu, a researcher at the National Institute of Aerospace and NASA's Langley...

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2010-05-02 07:57:56

NSF-supported climate scientist Mark Flanner and colleagues find differences in the rates for spring warming and snow cover decline in Eurasia and North America, and are studying whether aerosols are a key factor Over the past 30 years, springtime snow melt and warming appear to be proceeding at a faster rate in Eurasia than in North America. Climate scientist Mark Flanner, an assistant professor at the University of Michigan and a recent Advanced Study Program graduate at the National...

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2010-02-11 11:15:00

Workers and residents exposed to dust and fumes caused by the collapse of the World Trade Center on September 11, 2001 frequently reported headache years later, according to research released today that will be presented at the American Academy of Neurology's 62nd Annual Meeting in Toronto April 10 to April 17, 2010. "We knew that headaches were common in people living and working near the World Trade Center on and immediately after 9/11, but this is the first study to look at headaches...

2010-02-11 06:44:00

ST. PAUL, Minn., Feb. 11 /PRNewswire-USNewswire/ -- Workers and residents exposed to dust and fumes caused by the collapse of the World Trade Center on September 11, 2001 frequently reported headache years later, according to research released today that will be presented at the American Academy of Neurology's 62nd Annual Meeting in Toronto April 10 to April 17, 2010. "We knew that headaches were common in people living and working near the World Trade Center on and immediately after...

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2009-07-21 06:10:22

A Japanese study using a NASA satellite found that dust clouds being generated by a huge dust storm in China's Taklimakan desert in 2007 made more than one full circle around the globe in just 13 days. Once the cloud reached the Pacific Ocean the second time, it descended down and deposited some of its dust into the sea, revealing how a natural phenomenon can impact the environment far away. "Asian dust is usually deposited near the Yellow Sea, around the Japan area, while Sahara dust ends...

2009-05-28 10:55:55

In the context of the climatic change of the planet, those research works that throw light on global warming are of great interest. That is the case of the studies on atmospheric aerosol, a suspension of solid or liquid particles on a gaseous environment that can contribute to the warming or cooling of the atmosphere. Juan Luis Guerrero Rascado developed his doctoral thesis "Lidar Technique for atmospheric characterization by elastic and Raman dispersion" precisely in this research line,...

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2008-10-06 12:17:34

Scientists of the Soil Science and Geopharmacy Research Group of the University of Granada (Spain), directed by Rafael Delgado, have discovered and characterized a new type of atmospheric aerosols named 'iberulites', which could be useful for the study of relevant atmospheric reactions from Earth. Researchers Jos© Luis Díaz Hernández, of the Andalusian Research and Farming, Fishing, Food, and Ecological Production Training Institute (IFAPA) and...


Word of the Day
barghest
  • A goblin in English folklore, often appearing in the shape of a large dog and believed to portend imminent death or misfortune.
  • A ghost, wraith, hobgoblin, elf, or spirit.
The origin of 'barghest' is not known, but it may be from perhaps burh-ghest, town-ghost, or German Berg-geist (mountain spirit) or Bär-geist (bear-spirit).
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