Research summary: Storm surges that occur along low-lying, densely populated coastlines can leave devastating societal, economical, and ecological impacts. To protect coastal communities from flooding, return periods of storm tides, defined as the combination of the surge and tide, must be accurately evaluated. In my PhD research I develop a novel integration of two modelling techniques to assess the coastal flood hazard caused by tropical and extratropical cyclone induced storm surges. The resulting dataset with information on the coastal flood hazard can be used to assess global coastal flood risk. The impact of climate change on the global flood hazard and risk will also be assessed. Last, the existing static inundation approach that is often applied at the global scale will be improved by making this approach more dynamic.