Atmospheric Infrared Sounder(AIRS)is on board on the EOS-2/ Aqua satellite,lauched in May 4, 2002. It is now the modern atmospheric remote sensing instrument withhigh spectral resolution in the world.

• 2002年5月上天的Aqua是美国地球观测系统中的第二颗卫星EOS-2(EarthObserving System),它携带的大气红外探测仪AIRS(Atmospheric Infrared Sounder)是目前国际上最先进的超高光谱分辨率红外大气垂直探测仪。