摘要
以2011年日本Mw9.0地震为例,探讨了同震重力变化理论模拟计算所涉及到的几个关键问题,并利用GLDAS全球陆地水储量模型对GRACE卫星检测到的同震重力变化进行了修正。结果表明,水文效应变化振幅达4μGal,该影响不可忽略。
Several key problems about coseismic gravity changes simulation caused by earthquake were discussed based on 2011 Japan Mw9.0 earthquake. And then, gravity changes due to continental water storage were computed using GLDAS model. The results show that the effect of hydrology is obvious which peak is about 4 μGal.
出处
《地理空间信息》
2014年第3期66-68,72,共4页
Geospatial Information
基金
国家自然科学基金资助项目(41204019)