The main goal of MyWave is to lay the foundation for a future Marine Core Service that includes ocean waves. The proposal has identified four target areas where concerted research is needed to establish a high quality GMES Marine Core Service for ocean waves:1.increase the use of earth observations by improving data processing algorithms and data assimilation systems,2.improve the physics in current wave models and provide a framework for coupled model systems (atmosphere/waves/ocean),3.establish a new standard for probabilistic wave forecasts based on ensemble methods,4.derive standard protocols for validation products.