1B.3 Overview of the Navy's Coupled Mesoscale Modeling System and Future Plans

Monday, 4 June 2018: 9:15 AM
Colorado B (Grand Hyatt Denver)
James D. Doyle, NRL, Monterey, CA; and S. Chen, C. M. Amerault, D. D. Flagg, S. Gabersek, T. Haack, R. M. Hodur, T. R. Holt, X. Hong, Q. Jiang, H. Jin, Y. Jin, W. A. Komaromi, J. R. Moskaitis, J. Nachamkin, P. A. Reinecke, D. R. Ryglicki, J. Schmidt, D. P. Tyndall, S. Wang, and L. Xu

The Naval Research Laboratory (NRL) recently had developed several new capabilities for the Navy’s Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS®) to provide more accurate analyses and predictions of the atmosphere and ocean at high-resolution. An overview of these new COAMPS capabilities will be highlighted in this presentation. COAMPS is comprised of three-way interactive interactive components: the nonhydrostatic atmospheric model, NRL Coastal Ocean Model (NCOM) and the SWAN and WWIII wave models using the Earth System Modeling Framework (ESMF). A description of the coupled system will be presented along with examples from the coupled model. Capabilities that will be highlighted include: i) a coupled tropical cyclone (TC) system and a TC ensemble capability, ii) a coupled ensemble system, iii) 4D-variational and ensemble Kalman filter data assimilation systems, iv) a nested adjoint and mesoscale observation impact system, iv) new physical parameterization for the planetary boundary layer and moist processes, v) in-line aerosol model, vi) coupled sea ice (CICE) model, and vii) coupled hydrological modeling system. The tropical cyclone system, COAMPS-TC, has been one of the top performing dynamical models in the world for tropical cyclone intensity. Lastly, a discussion of the future plans for the Navy’s mesoscale modeling system will include a summary of the recent development of a new nonhydrostatic dynamical core model, NEPTUNE, based on spectral element and discontinuous Galerkin techniques. Examples of the new dynamical core will be shown for idealized and real-data cases.
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