Data assimilation of the TEMPO products with the JEDI system (Invited Presentation)

The Joint Effort for Data Assimilation Integration (JEDI) is a unified data assimilation (DA) framework for Earth system prediction and reanalysis developed by the Joint Center for Satellite Data Assimilation (JCSDA). Its primary goals are to streamline research and operational efforts, enhance community collaboration, and facilitate a smooth transition from development to operations. This presentation provides an overview of recent advancements in data assimilation of TEMPO products for atmospheric composition applications through the JEDI framework.

We have diagnosed the observation minus background and analyses increments with TEMPO jointly with TROPOMI, demonstrating the operational capability of JEDI code to assimilate the new TEMPO measurements. Less than 24 hours after the official L2 public release we published a demonstration news web article showing data assimilation results of NO2 fields using TEMPO.

Work is ongoing to look into more details of the 4DEnVar TEMPO data assimilation and QC strategies and more importantly, develop an emission inversion capability with JEDI. A novel 4DEnVar approach has been developed to allow an hourly constraint on both NO2 concentrations and surface fluxes. The TEMPO data has been tested in this data assimilation framework at various spatial resolutions with the GEOS-CF model.

To increase the model resolution within an affordable range of computational cost, multi-resolution DA capability has also been implemented and tested in the JEDI system. Exploring affordability for data assimilation configurations for GEO instruments.