Recent Progress in COAMPS R2O Transition to Navy Operation

The Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS) has expanded from an atmospheric only model in late 1990 to a fully coupled environmental prediction and data assimilation system in recent decades. The current research version of the COAMPS forecast components consist of the Navy Coastal Ocean Model (NCOM), the community Regional Ocean Modeling System (ROMS), the Simulating WAve Nearshore (SWAN), the NOAA Wave Watch III, the DOE CICE, the NASA Land Information System (LIS) and the NCAR WRF-HYDRO hydrology model. COAMPS data assimilation systems include the NRL Atmospheric Variational Data Assimilation system (NAVDAS), COAMPS atmosphere 4DVAR, Navy Coupled Ocean Data Assimilation (NCODA), and NCOM 4DVAR. In this talk, we will highlight recent progress in accelerating the COAMPS atmospheric R2O transitions to the Fleet Numerical Meteorology and Oceanography Center (FNMOC). The new atmospheric capabilities that have been transitioned to FNMOC include the COAMPS internal land surface model NOAH3.2, coupled aerosol/dust/smoke/sea salt/sulfate transport, an atmospheric ensemble capability, and Cylc new workflow suites. In addition, work was also completed at NRL Stennis to implement the ESMF NUOPC framework to modernize the COAMPS coupling infrastructure and build system, which increased the interoperability of COAMPS with community models. For the coupling capabilities, NRL Monterey and Stennis have successfully transitioned the two-way air-ocean, air-wave, and ocean-wave coupling capability to FNMOC. Results from these R2O transitions, lessons learned, and remaining challenges will be addressed.