The Terra mission will help quantify aerosol radiative forcing of climate by providing innovative measurements of the aerosol daily spatial distribution and identifying dust, smoke and regional pollution. MODIS aerosol information is being validated and supplemented by measurements bv the Aerosol Robotic Network (AERONET) of 100 global ground-based instruments. AERONET measures the aerosol spectral optical thickness and the total precipitable water vapor every 15 minutes throughout the day. These aerosol measurements should be very important as input to models that calculate radiative forcing and predict climate change.
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