East Africa now has some new NASA technology to monitor the tiny particles in the air known as aerosols.
Sun Photometer Pointing at Sun and Taking Measurements -- A Sun photometer measures the intensity of sunlight arriving directly from the Sun. They are pointed directly at the Sun and measure direct sunlight. Since haze and aerosols block some direct sunlight, a Sun photometer is an ideal instrument for measuring haze. Credit: NASA
Broglio Space Center, Malinda, Africa -- This dish can receive Terra/MODIS and Aqua satellite data in direct broadcast mode. Credit: Charles Gatebe
Dr. Michael King, Senior Project Scientist of NASAs Earth Observing System at NASAs Goddard Space Flight Center (GSFC), Greenbelt, Md., led a group of NASA scientists that traveled through Kenya, Tanzania, Uganda and Eritrea from February 26 to March 18, 2005, to find locations to place a number of NASA’s AErosol RObotic NETwork (AERONET) sunphotometer.
A sunphotometer is an instrument which measures the intensity of the Suns light, when pointed directly at the Sun. Any aerosols and gases (haze) between the Sun and the photometer tend to decrease the Suns intensity. A hazy sky would read a lower intensity of sunlight and give a lower voltage reading on the photometer. A clear blue sky would result in a greater intensity and a higher voltage reading.
Rob Gutro | EurekAlert!
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