Simple Model for Wind Field Estimation in Complex Terrain

摘要

In this paper, a prognostic mixed-layer model is presented that provides a time-dependent wind field for use in situations where data are sparse or limited to only one observing site. Such a model could provide improved estimates of atmospheric transport for dispersion modeling. The model is based on a form of the Navier-Stokes equations integrated over the depth of the atmospheric boundary layer. This type of model has been used in many applications including the simulation of terrain drag, development of a climatological wind field, and modeling drainage winds. To provide a more realistic approximation of boundary layer growth, a one-dimensional boundary-layer model is used for obtaining entrainment rates at the top of the mixed layer. (ERA citation 14:020530)