This visualization shows the cold water trail left by Hurricane Katrina. The data is from August 23 through 30, 2005. The colors on the ocean represent the sea surface temperatures, and satellite images of the hurricane clouds are laid over the temperatures to clearly show the hurricane positions. Orange and red depict regions that are 82 degrees F and higher, where the ocean is warm enough for hurricanes to form. Hurricane winds are sustained by the heat energy of the ocean, so the ocean is cooled as the hurricane passes and the energy is extracted to power the winds. The sea surface temperatures are 3-day moving averages based on the AMSR-E instrument on the Aqua satellite, while the cloud images were taken by the Imager on the GOES-12 satellite. Note: GOES-12 infrared imagery over AMSR-E sea surface temperature for Hurricane Katrina, from August 23, 2005 to August 30, 2005. Data Collected: 2005/08/23 through 2005/08/30. Animator: Greg Shirah (NASA/GSFC), Alex Kekesi (GST). Scientist: J. Marshall Shepherd (NASA/GSFC), Jeff Halverson (JCET UMBC). Platforms/Sensors/Data Sets: Aqua/AMSR-E, Terra/MODIS, GOES-12/Imager, Aqua/AMSR-E/Sea Surface Temperature Anomaly, Aqua/MODIS/Blue Marble, GOES-12/Imager/Infrared, Terra/MODIS/Blue Marble.