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The Greenland tip jet is a sporadic jet stream characterized by fierce winds on the lee side of Cape Farewell on the southern tip of Greenland. This phenomenon appears to play a critical role in chilling North Atlantic waters so that they sink to great depths and drive part of the global ocean circulation and climate system. Using NOAA's QuikSCAT satellite, MIT/WHOI Joint Program graduate student Kjetil Våge compiled this image of a tip jet on Dec. 5, 2002. Color indicates wind speeds in meters per second; arrows indicate wind direction. (Courtesy of Kjetil V?ge, Woods Hole Oceanographic Institution)[back]
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