The diverse applications of FV3 within the NASA GEOS modeling and assimilation system

The Global Modeling and Assimilation Office at NASA Goddard Space Flight Center has been using the finite-volume cubed sphere (FV3) dynamical core in its atmospheric modeling and assimilation system the Goddard Earth Observing System (GEOS) model since the development of FV3 began in 2007. The scalability of this unique dynamical core has allowed the GEOS modeling system to explore the boundaries of global atmospheric prediction since its inception.  FV3 has supported the pioneering global cloud resolving applications of GEOS first at 3km in 2009 and 1.5km in 2015, global nature run simulations for observing system simulation experiments (OSSEs) at 7km, global climate and reanalysis downscaling applications at 12.5km, operational analysis and forecast systems with advanced data assimilation methods at 25km, the world class MERRA-2 reanalysis at 50km, coupled seasonal forecast contributions to the North American Multi-Model Ensemble, and leading edge atmospheric chemistry and aerosol applications in NWP and reanalysis along with the Coupled Chemistry Model. This talk will highlight the benefits of FV3 that have supported this work over the past decade and provide insight into the planned applications of FV3 within GEOS over the coming months and years along with ongoing collaborations with NOAA developers at GFDL and NCEP.