Overview of the Navy's Coupled Global and Mesoscale Modeling System

The Naval Research laboratory (NRl) Marine Meteorology Division (MMD) is responsible for developing, transitioning, and maintaining the Navy's coupled global and mesoscale modeling systems. These systems provide the unique naval environmental prediction capability demanded by warfighters. The systems are run operationally at all levels of classification, are tailored and optimized to support Navy and DOD operations anytime and anywhere around the world, and are developed under the Department of Defense Information Assurance standards, filling a unique and demanding role in the world of operational NWP. Outputs from these systems drive downstream applications such as the Navy Aerosol Analysis and Prediction System (NAAPS), the Naval Observatory's universal timekeeping mission, electromagnetic propagation, and air and ship routing. This presentation will describe the current NRl modeling and data assimilation suite, NRl's continued emphasis on coupled systems, and our plans for the future.