One of the goals of the US Global Change Research Program (USGCRP) is to coordinate climate change research across the federal agencies, including efforts to build and run climate and Earth system models. Beginning in 2015, the USGCRP Interagency Group on Integrative Modeling began to host an annual Climate Modeling Summit, to foster federal-wide strategic planning and collaborations across the NOAA, NASA, DOE, and NSF (NCAR) modeling centers. The Summit normally has two representatives from each of six modeling centers: NOAA Geophysical Fluid Dynamics Laboratory (GFDL CM/ESM); NOAA Climate Forecast System (CFS); NASA Goddard Institute for Space Studies (GIS Model E); NASA Goddard Earth Observing System (GEOS-5); NCAR Community Earth System Model (CESM); and DOE Energy Exascale Earth System Model (E3SM). Since 2017, each summit has included a topical workshop whose theme was identified as important to address by all modeling centers. Together, the Summit and workshops have helped inform the federal agencies of the research gaps and opportunities for collaborative efforts and set priorities for the future. At this Townhall, we will highlight successes of the ten years of USCMS, and while inviting input from the broader community on issues to consider as we move forward into the next decade.

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