由于观测资料相对匮乏，针对青藏高原云内物理过程和垂直结构的研究还相对较少,对其云降水物理过程的认识还存在较大的不确定性。本项目将综合多种卫星资料和数值模拟来研究高原云降水物理过程及其演变机制，着重分析其垂直结构特征及其与局地热力特性的联系。使用再分析数据和观测资料，计算高原地区长时间序列的大尺度强迫场，并将其作为云分辨模式的驱动场；利用模拟得到较长时间（一年至数年）的云降水资料集，分析高原云系的云内物理过程、垂直结构和演变特征。同时，针对高原地区的深对流系统进行数值试验，得到其云内物理过程、垂直通量及对流动量输送等特征信息，并讨论它们与高原局地热力和动力环境之间的相互作用。研究结果可以提高对青藏高原云系结构和演变过程的认识，有助于理解局地热力特性影响高原云降水物理过程的机制。

Due to the limited ground-based observational dataset, there is few study focused on the in-cloud physical processes and cloud vertical structure over the Tibetan Plateau (TP). The understanding of the cloud and precipitation processes is still with large uncertainties over the TP. In this study, various satellite datasets and the numerical models will be employed to investigate in-cloud physical processes, cloud vertical structure, and their relationship with the thermal characteristics over the TP. The Cloud-Resolving Model will be driven by the large-scale forcing for the temperature and moisture, which is computed by the reanalysis dataset. The simulation will be conducted for one year or even longer. Then, the long-term cloud product from the model can be used to analyze the cloud physical processes, evolution and vertical structure. Furthermore, sensitive simulations can be conducted and focus on the deep convections over the TP. With the product of the model, the in-cloud physical processes, vertical mass flux, and the convective momentum transport can be obtained. In addition, the relationship between these features and the local thermodynamic and dynamic environment will be discussed. The execution of this project can promote the understanding of the cloud structure and its development mechanism over the TP, and can be benefit to understand the effects of the thermal characteristics on the cloud and precipitation over the TP.