An atmospheric temperature measuring instrument developed by partners in (and partly supported by) the EMPIR project ‘Metrology to establish an SI traceable climate observing system’ (19ENV07, MetEOC-4) has been approved for in-orbit testing onboard a European satellite scheduled for launch in 2025.

The instrument named ‘Spatial Heterodyne Interferometer Performance Assessment in Space’ (SHIPAS) was developed by Research Centre Jülich and Wuppertal University, Germany, to accurately measure temperatures in the mesosphere and lower thermosphere. These layers of the atmosphere at 70 to 130 km altitude are sensitive to greenhouse gas concentrations and are early indicators of global heating trends.

More at: https://www.euramet.org/publications-media-centre/news/news/shipas-satellite-based-climate-sensor-approved-for-in-orbit-testing