The ACTRIS CiGas Community meeting 2025 was held on 22 October 2025 during the ACTRIS week 2025 bringing together around 60 participants - 20 on-site and 40 online - for a hybrid exchange of expertise and updates. 

The meeting featured reports on key developments in the implementation and labelling process (step 1a), progress on the CiGas Box instrument database, and updates on near-real-time (NRT) data submission and reactive trace gases (RTG) data at the data centre.

Presentations were given by members of the CiGas management team. Discussions also addressed community-driven topics such as shared software for ACTRIS variables, data analysis and submission expectations, RTGIS instrumentation and guidelines for condensable vapours.

All presentations from the meeting are available on the ACTRIS CiGas website.

Agenda 

• Introduction - Ralf Tillmann
• Activity/implementation highlights 2025 - Peeyush Khare
• Labelling workflow and status - Katrin Seemeyer
• Instrument database - Status, further development - Roman Romany, Ralf Tillmann
• NRT data submission and vision - Robert Wegener, Stefan Reimann, Aurelien Chauvigné
• RTG data status - Yong Lin
• Community induced topics
  • Standardised or shared software for the ACTRIS variables - Ralf Tillmann
  • Data analysis and submission expectations - Ralf Tillmann
  • RTGIS instrumentation - Ralf Tillmann, Nina Sarnela, Robert Wegener
  • Guideline for condensable vapors - Nina Sarnela
• Target gas stability - Anja Claude - due to time restriction not presented
   

The collection of all presentation can be found here.

The minutes are available here.