Sunday, June 28, 2009

Sahara Dust & NASA Earth Observatory's Aerosol Optical Depth Monitor


Have you noticed that we can't see Nevis for the last few days? Perhaps it is due to Sahara dust?
"Tiny solid and liquid particles suspended in the atmosphere are called aerosols. Windblown dust, sea salts, volcanic ash, smoke from wildfires, and pollution from factories are all examples of aerosols. Depending upon their size, type, and location, aerosols can either cool the surface, or warm it. They can help clouds to form, or they can inhibit cloud formation. And if inhaled, some aerosols can be harmful to people’s health."

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Thursday, December 04, 2008

Plume from Monserrat Volcano


This often blows in our direction (notice Nevis and St. Kitts in the clouds to the north-west), making it hard to keep our cars clean! It also makes you wonder about the long-term effects on our health!
Click on the image to enlarge or click on the title to go to the NASA site. Notice Guadeloupe to the south, Antigua to the east and Barbuda to the north-east.
Photo from NASA Earth Observatory.

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