| Instrument: HIRS : High Resolution Infrared Radiation Sounder |
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Related Data Sets View all records related to this instrument Description The High Resolution Infrared Radiation Sounder (HIRS) is an atmospheric sounding instrument that has provided important information on atmospheric temperatures in cloud-free conditions since 1978. The latest version, HIRS/3, will be flown on NOAA-K, -L, -M in the years from 1998. A similar instrument, HIRS/4, will be flown on EUMETSAT's Metop-1, -2, -3 from 2005. They will provide high resolution temperature soundings of the global atmosphere in cloud-free conditions of great importance to meteorology and climatology. The instruments will be provided by NOAA, assuring data homogeneity from the two series of operational polar spacecraft. The 20-channel HIRS/3 instrument has an effective ground Field of View (FOV) of about 20 km, while in HIRS/4 the effective FOV will be reduced to about 10 km in order to improve the ability of the instrument to view cloud-free scenes. Additional information available at "http://www.eumetsat.de/en/index.html?area=left2.html&body=/en/area2/ cgms/ap10-09.htm&a=284&b=2&c=280&d=200&e=0" |
