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High-Resolution Infrared Radiation Sounder (HIRS)
ITT's HIRS instrument provides Global atmospheric temperature data from seen here, channel 6 on the NOAA 14 satellite.
ITT's high-resolution infrared radiation sounder (HIRS) instrument is internationally recognized as the operational sounder for global weather data since 1978. HIRS collects global data on a daily basis for a variety of land, ocean, and atmospheric applications. In its full global coverage, HIRS uses improved infrared spectral scanners to detect variations in a broad range of environmental situations. Included in its capabilities are weather analysis and forecasting, climate research and prediction, and soundings of temperature and humidity.
ITT's first HIRS was first carried on NIMBUS 6,launched 1975 then on TIROS-N, launched October 1978, later to be carried on NOAA-7,launched June 1981 and NOAA-15, launched May 1998.
Today the forth generation HIRS/4 is a 20-channel sounder that provides calibrated atmospheric profile data for assured global accuracy and radiometric data used to generate global temperature mapping at 40 different atmospheric levels. It will be carried on POES-N scheduled to launch in 2008.
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