The Weather Research and Forecasting (WRF) model physical parameterizations software has been integrated in a modular manner into COAMPS to enable seamless access to the NCEP and NCAR WRF parameterization suites. The modular physics package gives COAMPS a diverse set of parameterization options available for deterministic or ensemble model applications. A generalized input/output software interface is now under development to enable the COAMPS and WRF modeling systems to be tested using identical initial and boundary conditions. Recent improvements to the COAMPS physical parameterization suite include implementation of a new land surface model, an urban model, and an improved microphysical parameterization. Several modifications have been made to the surface flux parameterization over the ocean in order to improve the representation of air-sea transfer for the high-wind regime based on the recent Coupled Boundary Layers Air-Sea Transfer (CBLAST) field campaigns. Results will be shown that describe the positive impact on forecast skill for tropical cyclones associated with the more accurate representation of these surface processes. For high-resolution applications, COAMPS has also been recently extended to perform in a Large Eddy Simulation (LES) mode.
COAMPS has been coupled to the NRL Coastal Ocean Model (NCOM) using the Earth System Modeling Framework (ESMF). A description of the coupled system will be presented along with examples from the new coupled architecture.
A discussion of the future plans for the Navy's mesoscale modeling system will include a summary of the recent development of several new nonhydrostatic dynamical cores based on spectral element and discontinuous Galerkin techniques. A brief comparison of the new dynamical cores will be shown for several idealized test cases.