【摘要】 采用具有１１２阶精度的ＴＫＥ闭合方案以及适当减少垂直网格层数，使计算量大大减少。模拟结果与观测结果仍很吻合；与３阶闭合结果相比，并无明显降低。该方案提供了改进３维大气模式中ＰＢＬ参数化精度的可能性。更多还原

【Abstract】 The TKE (Turbulent Kinetic Energy) closure scheme with 112 order precision and the method of reducing vertical layers are used to decrease computing amount. Modelling results agree well with observations. Compared with results of 3 order closure schemes, there is no obvious reduction of precision. This scheme provides the possibility of inducting and improving the precision of PBL parameterization in three dimensional atmospheric models.更多还原