An alternative approach to nonhydrostatic modeling

Even though claims that optimum model configurations have been reached cannot be supported by rigorous scientific arguments, the vast engineering efforts involved appear to have converged toward several common characteristics shared by the dynamical parts of most major weather forecasting and climate simulation models. Time-dependent computational top boundary conditions that could control this problem could further limit the capacity of a regional nonhydrostatic model to develop more accurate synoptic-scale forecasts than the parent hydrostatic model. [...]there is insufficient experience concerning the benefits that can be expected in NWP from nonhydrostatic models.