印度-欧亚板块碰撞是喜马拉雅造山带持续隆升的根本原因，板缘特大地震作为板块间挤压变形的弹性回跳过程，对造山带构造隆升具有一定制约、调节作用，但由于大地测量观测缺失和历史地震资料的不足，对于板缘周期性特大地震在喜马拉雅造山带隆升的具体作用（幅度、机制、过程）仍认识有限。 2015年4月25日发生在尼泊尔首都附近的Ms8.1级地震为以上研究提供了良好契机。本研究拟以珠峰地区为对象，以珠峰地区积累多年的GPS、水准、InSAR和重力资料为基础，配合震后持续的大地测量监测，对珠峰地区震间、同震和震后阶段的地壳垂直位移场展开高精度、高分辨率测定，通过对多源时变数据融合，进一步尝试构建珠峰地区震前、震后断层垂直运动模型，分析本次尼泊尔地震导致珠峰地区变形的幅度分布和响应机制，揭示大震过程对珠峰地区垂向变形的制约作用，该研究对深入认识喜马拉雅和青藏高原构造隆升及其动力学具有重要意义。

Great earthquakes occurred in Indian and Eurasia plate margin play important roles in the uplift process of Himalayan orogenic and are also the control factor to drive the crustal shortening and thickening of the plate margin. However, as the insufficient information of geodesy and history earthquakes, the understanding to the accommodation effect for earthquake cyclic motion in the uplift process of Himalayan orogenic is still limited. The Nepal earthquake occurred in April 25,2015 provided an unusual opportunity to research the mechanism for great earthquakes of plate margin to influence the uplift deformation of Himalayan orogenic. In this study, we take Everest region as research object and expect to obtain the high-precision, high resolution crustal vertical deformation field for interseismic, coseismic and postseismic period by integrating the several decades GPS, levelling, InSAR and gravity data relying on continuous geodesy monitoring after the event. We expect to analyze the temporal and spatial evolution characteristics of crustal deformation for Everest responding to Nepal earthquake. Furthermore, we attempt to construct the fault motion model for interseismic and postseismic period in Everest region to reveal the control effect of vertical deformation for earthquake cyclic motion in Everest region, which might help us to deeply understand the present-day uplift deformation mechanism for Himalayan and Tibet Plateau.