Cool Science                         International Polar Year Begins 1 2 3 4 5 6 7 8 9 10 Sea Eddies Two large ocean circulation features, called eddies, are at the northernmost edge of the sea ice pack (seen in green) in the Weddell Sea. The eddy processes in the Antarctic region play an important role in the circulation of the global ocean and the transportation of heat toward the pole. The image was produced by the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar on Space Shuttle Endeavour. + Full image and caption     Jet Propulsion Laboratory    California Institute of Technology