Learn about volcanic ash and watch a visualization of the Calbuco volcano to see how ash travels around the world.
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Students observe seasonal images of Monthly Normalized Difference Vegetation, looking for any changes in vegetation that are occurring throughout the year.
The radar measurements made by NASA's Soil Moisture Active Passive (SMAP) observatory are sensitive to whether land surfaces are frozen or thawed. Students analyze two maps of SMAP data to make inferences about changes to the Arctic's Geosphere showing spring thaw.
Students observe monthly images of changing vegetation patterns, looking for seasonal changes occurring throughout 2017.