A 22 GHz mobile microwave radiometer for the study of stratospheric water vapor

We present a new compact ground-based microwave radiometer dedicated to the study of middle atmospheric water vapor. The instrument detects the 6₁₆- 523 H₂O transition line at 22.235 GHz. This radiometer has been designed to be easily transported and operated during measurement campaigns in remote places. The first retrievals, performed with the MOLIERE inversion and radiative transfer software, show good agreement with MIAWARA, the 22 GHz Radiometer developed at the University of Bern, Switzerland, and the Microwave Limb Sounder instrument onboard the Aura satellite.