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From April 14 to 16, 2026, members of all ITMS modules (Modelling, Observations, Sources & Sinks, Utilization, and Coordination) gathered at the German Weather Service (DWD) in Offenbach for the “ITMS Joint Module Meeting”- The event aimed to present the progress of each module and to foster cross-disciplinary exchange.
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In the ITMS project, a new system is being developed at the DWD to assess greenhouse gas emissions based on concentration measurements and weather modeling. Now we have published two new papers in the journal Atmospheric Chemistry and Physics, describing the ITMS-Demonstrator and estimating the Germany's methane emissions in 2021. Here, we explain the foundations of this system. more

Atmospheric measurements can complement greenhouse gas inventory methods, offering additional approaches for tracking emissions, identifying trends, and supporting transparency. A new “good practice guidance” from WMO outlines approaches for using atmospheric observations in national GHG inventories, with contributions from ITMS on national-scale GHG emission estimation in Germany. more

 A core component of the ITMS demonstrator for estimating German methane emissions developed by DWD is now available as open-source software.
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WMO Publishes Urban Greenhouse Gas Monitoring Guidelines with Key Contributions from ITMS members more

The third ITMS General Assembly took place from September 23 to 25, hosted by Heidelberg University. more

On September 15 and 16, our ITMS User Meeting was once again held at the Federal Environment Agency (UBA) in Dessau-Roßlau. more