International workshop on spectrometric gas thermometry

The project

The effect of climate change is paramount, exemplified by record drought and flooding on several continents, including the EU. The latest IPCC report suggests that the EU is the most affected region in the World with almost doubled warming effects. Accurate air temperature measurements are critical for climate change monitoring and the related evidence-based policymaking for early mitigation/adaptation planning. Spectrometric thermometry overcomes several practical challenges posed by contact thermometry in air and industrial processes.  

The highly inter-disciplinary Primary spectrometric thermometry for gases (PriSpecTemp, 22IEM03) consortium will integrate their knowledge and infrastructure across the EU to improve, standardise and implement several spectrometric gas/air thermometers at a target uncertainty of 10 mK using practical probing molecules such as CO2, CO and O2. This will be cross-validated against other non-contact methods, as well as the ITS-90 standard methods. Ultimately, a new hybrid calibration service with minimal long-term drift will support SI-traceable calibration of classical contact thermometers in gas and air.

The workshop

The workshop consisted of four sessions, and aims to introduce Metrology for Environment at PTB, EURAMET and the CIPM level. It reviewed the state of the art for metrology for air temperature measurement using contract thermometers, summarise present spectrometric temperature methods, and show applications and future needs on spectrometric air thermometry on satellite remote sensing and industry.

Videos of the talks