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What are Aerosols?
Changing Global Cloudiness
Why Isn't Earth Hot as an Oven?
Changing Global Land Surface
The Roles of the Ocean in Climate Change
The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is the only instrument aboard Terra that does not operate continually on orbit. The instrument collects an average of 8 minutes of data per 98-minute orbit. It will take ASTER roughly 5 years to assemble a global data set at resolutions of up to 15 meters per pixel. From these data, the ASTER Team will assemble a very detailed digital elevation map of our planet's surface.
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