Melissa Lau spent a month in the tundra ecosystem gathering data using a device called a Greenseeker. This device measures exactly how green a plant is by calculating its NDVI or Normalized Difference Vegetation Index. In this lesson, students will explore light waves, how they interact with plants, and find out how green is green.
This underwater movie shows the ROV or Remotely Operated Vehicle, SCINI (Submersible Capable of Under Ice Navigation and Imaging) working under the ice in Antarctica.