The Integrated Greenhouse gas Monitoring System (ITMS) for Germany: Update on recent progress

Kurzfassung

The Integrated Greenhouse Gas Monitoring System for Germany (ITMS) is a national initiative to establish an operational service for the provision of independent estimates of GHG fluxes for Germany. The main aim is to enhance transparency in reporting of emissions and natural fluxes, specifically with regards to emission reduction on the path to net zero. ITMS is a highly interdisciplinary project, bringing together diverse scientific communities involved in atmospheric observations, satellite observations, biosphere and agriculture research, inventory experts, and atmospheric transport and inverse modelling. ITMS utilizes observational datastreams from research infrastructures such as ICOS and IAGOS to constrain Germany’s GHG fluxes into the atmosphere using inverse atmospheric transport modelling. ITMS also develops tailored remote sensing products e.g. from current and upcoming satellite missions. Detailed a priori emissions are generated consistent with UNFCCC reported emissions, while priors for natural fluxes are based on various process based as well as diagnostic models. Inverse modelling is deployed at mesoscale resolution, using the CarboScope-Regional (CSR) inversion system operated at the MPI- BGC as a back-bone and reference system, while developing ICON-ART based data assimilation for future operational services at the DWD. The presentation will give an overview of current status, and will indicate some research highlights achieved so far