Events
🌡️ 2nd International Workshop on Spectroscopic Thermometry — 21 October 2026
We are pleased to announce the PriSpecTemp Final Stakeholder Workshop, which brings together international researchers and metrologists to discuss developments in primary spectroscopic thermometry and temperature traceability following the redefinition of the kelvin.
📅 Date: 21 October 2026, 9:00-17:30 CEST
💻 Format: Online (Hosted by PTB)
🔗 Register as a stakeholder for the meeting link.
🔗Agenda
📋 Programme Overview
Welcome & Opening
• Gang Li & Rainer Stosch (PTB) — Welcome & PriSpecTemp Overview
🎤 Plenary Lecture:
• Graham Machin (NPL) — SI Kelvin Redefinition & Impact on Temperature Traceability
🔬 Session 1: Line-Intensity Ratio & Ro-Vibrational Gas Thermometry
• Daniel Lisak (UMK) — Line-ratio thermometry via cavity mode-dispersion spectroscopy
• Yan Tan (USTC) — Sub-mK Line-Ratio Thermometry using Dual-Wavelength CMDS
• Can Gözönünde (TÜBİTAK UME) — Ro-Vibrational Gas Thermometry with FTIR
• Yu-Rong Xu (UMK) — Frequency comb-based gas thermometry
• Kianoosh Hadidi (Justervesenet) — Laser-induced heating considerations
• Yukiko Shimizu (AIST) — Rotational-State Distribution Thermometry (RDT) Using Dual-Comb Spectroscopy
💡 Session 2: Doppler-Broadening & Refractive-Index Gas Thermometry
• Shuiming Hu (USTC) — Doppler-Broadening Thermometry via CMDS of CO
• Livio Gianfrani (Univ. Campania) — Doppler-Broadening Thermometry
• Tom Rubin (PTB) — Gas-independent FP refractometry approaches
• Carmen Garcia Izquierdo (CEM) — Fabry-Perot Interferometer gas thermometer
❄️🔥 Session 3: Low & High Temperature Spectroscopic Thermometry
• Aidan Arnold (Univ. Strathclyde) — Primary thermometry via alkali-metal-vapour Doppler broadening
• Xiaofeng Lu (NIM) — Spectroscopic radiation thermometry at NIM
• Piotr Wcisło (UMK) — Deep cryogenic thermometry via cavity-enhanced H₂ spectroscopy
🌍 Session 4: Atmospheric Applications & Parameters
• Iouli E. Gordon (HITRAN) — HITRAN2024 spectral parameters
• Lukas Petera (ODU) — CO 2-0 overtone band broadened by H₂
• Adam J. Fleisher (NIST) — Isotope ratio spectroscopy
• Keeyoon Sung (NASA JPL) — FT-IR O₂ collision-induced absorption
🗣️ Closing Panel Discussion: Future directions in spectroscopic thermometry
1st International workshop on spectrometric gas thermometry - 13 SEP 2023 - PTB Braunschweig
2024
International workshop on spectrometric gas thermometry
When: 13 September 2023, 09:00 – 17:10 CEST
Where: PTB Braunschweig and Online
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.
M18 Meeting in Madrid
12 - 13 March 2025
Project partners will meet at CEM to discuss the project progress and future work at CEM. Advisory committee members are invited to join the discussion.
PriSpecTemp M18 meeting agenda (to download)
M9 Meeting in Istanbul
23 and 24 May 2024
The partners of PriSpecTemp from all over Europe met in May to discuss the progress after 9 months of work towards more accurate measurement of gas temperature and, eventually, more accurate climate observation.
Apart from the scientific discussions, there was much else to enjoy: the great hospitality of our hosts, an inspiring lab tour at the TÜBİTAK UME site and the lovely city of Istanbul.
Project kickoff and first stakeholder workshop
12 and 13 September 2023
The PriSpecTemp consortium met on 12 September to discuss the tasks and aims of the project and formally kick off 22IEM03 PriSpecTemp "Primary Spectrometric Thermometry for Gases" that started on 1 September.
On 13 September, a stakeholder workshop followed that informed interested parties about PTB's, EURAMET's and international reserachers' activities on gas measurement, climate research and temperature science.