对流允许尺度区域气候模拟的研究进展

Research progress of convection permitting regional climate modeling

与以往的区域气候模式相比,对流允许区域气候模式不再依赖于对流参数化方案,其精细的分辨率可以显式表示深对流过程,在夏季对流降水的日变化和极端降水事件模拟等方面具有明显增值能力,是区域气候模拟的发展方向。对现有的对流允许尺度区域气候模拟研究进行了较为详细的回顾和介绍,简述了对流允许尺度区域气候模式中比较重要的物理过程及外部驱动条件的影响,总结了以往对流允许尺度区域气候模拟的研究成果以及当下所面临的挑战和对未来的展望,以期对中国及东亚区域对流允许区域气候模拟的研究提供有益参考。诸多研究表明,对流允许区域气候模拟作为一种有前景的气候模式,可提供更加可靠的区域尺度的气候信息。

Compared with the traditional Regional Climate Models(RCMs), Convection Permitting Regional Climate Models(CP-RCMs) no longer rely on convection parameterization scheme, and fine resolution can explicitly resolve the deep convection process. It has obvious value-added ability in diurnal cycle of convection precipitation and extreme precipitation event simulation in summer, which is the development direction of regional climate simulation. CP-RCMs simulation research is reviewed in detail, and the influence of important physical processes and external driving conditions are briefly described. Following a summary of the existing research, the present challenges and the future perspective are presented, with a view for providing some useful references for the convection permitting regional climate simulations over China and East Asia. As a promising climate model, CP-RCMs can provide more reliable climate information on regional to local scales.