Profilers/Sounders
HIRS/2
HIRS/1, flown on NIMBUS-6, was an improved version of the 7 channel ITPR (Infrared Temperature Profile Radiometer) on NIMBUS- 5. HIRS/2, an adaptation in turn of HIRS/1, measures radiation in 20 channels - one visible and nineteen infrared, from short wavelength (4.3 micron) to long (15 micron). The instrument is intended to obtain vertical temperature profiles, surface temperature, water vapor profiles and cloud coverage. HIRS/2 is part of the TOVS package (see the sensor reference for TIROS OPER VERTICAL SOUNDER). HIRS/2 channels: WAVELENGTH CHANNELS (microns) PRIMARY USE* -------- ---------- ----------- 1-5 14.95-13.97 Temperature profiles, clouds 6-7 13.64-13.35 Carbon dioxide and water vapor 8 11.11 Surface temperature, clouds 9 9.71 Total ozone concentration 10-12 8.16-6.72 Humidity profiles, detection of thin cirrus clouds 13-17 4.57-4.24 Temperature profiles 18-20 4.00-0.69 Clouds, surface temperatures under partly cloudy skies ----------------------------------------------------------------- * See HIRS/1 for expanded descriptions in corresponding wavelengths. ----------------------------------------------------------------- Entry taken from: Rao,P.K., S.J. Holmes, R.K. Anderson, J.S. Winston, P.E. Lehr, Weather Satellites: Systems, Data, and Environmental Applications, American Meteorological Society, Boston, 1990. ISBN 0-933876-66-1 Cornillon, P. A Guide to Environmental Satellite Data, University of Rhode Island Marine Technical Report 79, 1982. 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" Group: Instrument_Details Entry_ID: HIRS/2 Group: Instrument_Identification Instrument_Category: Earth Remote Sensing Instruments Instrument_Class: Passive Remote Sensing Instrument_Type: Profilers/Sounders Short_Name: HIRS/2 Long_Name: High Resolution Infrared Radiation Sounder/2 End_Group Group: Spectral_Frequency_Information Wavelength_Keyword: Infrared > Thermal Number_Channels: 19 Spectral_Frequency_Coverage_Range: 4 - 15 micrometers End_Group End_Group