NASA's infrared satellite images reveal Ketsana's deadly western Pacific march
Wednesday, September 30, 2009 - 17:07
in Astronomy & Space
NASA's Aqua satellite flew over Typhoon Ketsana during its lifetime and captured infrared imagery on a daily basis. The images showed high, cold, thunderstorm cloud tops (purple) as cold as -63F, as they dumped heavy rains over the northern Philippines and Vietnam.