论文部分内容阅读
利用ＭＭ４模式，设计了４种模式地形方案，讨论了太行山地形对“９６．８”暴雨降水量的贡献；并利用垂直运动和水汽通量等物理量，探讨了太行山地形对本次暴雨过程增幅作用的机制。结果显示，太行山地形对本次暴雨过程的降水中心强度及位置有显著影响，具有６０％增幅作用。太行山地形对垂直运动及水汽辐合也都具有增幅作用。模式地形越真实，预报结果越好，地形越高，降水增幅作用越明显
Based on the MM4 model, four kinds of topographic schemes were designed and the contribution of the Taihang Mountain topography to the “96.8” rainstorm precipitation was discussed. By using the physical quantities such as vertical motion and water vapor flux, the effect of the Taihang Mountain topography on the increase of this rainstorm process was discussed Mechanisms. The results show that the Taihang Mountain topography has a significant impact on the intensity and location of the precipitation center during this rainstorm, with a 60% increase effect. The Taihang Mountain topography also has an increasing effect on vertical movement and water vapor convergence. The more realistic the terrain, the better the forecast result. The higher the terrain, the more obvious the effect of increasing precipitation