The High-resolution Infrared Radiation Sounder (HIRS/4) provides calibrated vertical profiles of temperature and humidity; information on cloud cover, cloud top height, cloud top temperature and cloud phase, as well as surface albedo.
05 March 2021
27 May 2020
What is HIRS?
HIRS is a 20-channel infrared scanning radiometer that performs operational atmospheric sounding.
HIRS uses CO2 absorption bands for temperature sounding (CO2 is uniformly mixed in the atmosphere). HIRS also measures water vapour, ozone, N2O and cloud and surface temperatures.
IASI is the main payload instrument for the purpose of supporting Numerical Weather Prediction.
GOME-2 is used to get a detailed picture of the total atmospheric content and vertical profile of ozone.
Microwave Humidity Sounder (MHS)
The MHS is designed to collect information on various aspects of the Earth's atmosphere and surface.
SARSAT instruments help search and rescue authorities save thousands of lives around the world.