Air-Sea Interactions and Earth System Modeling: An Unified Wave Interface
The goal of this study is to develop an unified air-sea interface for new generation Earth system models. The coupling framework has been developed and tested in the Unified Wave INterface-Coupled Model (UWIN-CM, Chen et al. 2013; Chen and Curcic 2016). This air-sea interface module is now built to be compatible with the NASA GMAO modeling framework, with the intent of eventually being incorporated into GMAO modeling system to make Earth System model predictions. The model simulations with the new air-sea fluxes module are evaluated and validated using NASA satellite data, e.g., surface wind products of the Ocean Vector Winds Science Team (OVWST), gridded air-sea fluxes (OAFlux), and surface waves data from the Cyclone Global Navigation Satellite System (CYGNSS), and on-going aircraft measurements.
The new air-sea interface module is fully tested in the regional high-resolution coupled atmosphere-wave-ocean model, i.e., UWIN-CM simulations of high-impact weather systems such as hurricanes and winter storms, and tested in the global GMAO GEOS model for simulations up to 1-2 months. The air-sea flux module will also be designed to facilitate future augmentation with additional physics. A review of the progress and chalenges in air-sea interaction in context of tropical convection and prediction across scales from hours to subseasonal including examples from tropical cyclones to the MJO. A fully coupled atmoshere-wave-ocean modeling framework and need for in situ and satellite observations going forward will be discussed.