中文摘要：

利用GRACE卫星重力月重力场模型、位错理论,结合向上延拓技术,模拟、计算了苏门答腊和汶川大地震区域卫星轨道高度处的理论同震重力变化和同震形变结果,根据卫星重力异常图进一步了解了龙门山断裂区域的深部构造特征,揭示了大地震发生的地球物理条件。

英文摘要：

The theoretical coseismic gravity changes in the height of satellite orbit and coseismic deformation results of Sumatra-Adaman and Wenchuan earthquakes are simulated and calculated by using satellite gravity models,dislocation theory and up continuation technique,the characteristics of deep structures of Longmenshan fault region geophysical condition for strong earthquake occurrence are revealed.