摘要
利用GRACE卫星重力资料,计算了华北地区的长期重力变化结果,利用6个测站的绝对重力观测资料,获取了测站的重力变化时间序列,同时获取了北京、泰安测站的GRACE卫星月重力变化时间序列。卫星重力观测结果显示华北地区地下水流失严重,绝对重力观测结果表明地面沉降严重。
Long term gravity changes were obtained from GRACE satellite gravity data.Time series of absolute gravity changes at six stations were obtained,and time series of gravity from GRACE at stations of Beijing,Tai'an were also obtained.The GRACE results showed that there was a decreasing trend in north part of China due to the decreasing of ground water,and land subsidence was serous revealed by absolute gravity measurement results.
出处
《地理空间信息》
2012年第3期72-74,3,共3页
Geospatial Information
基金
国家自然科学基金资助项目(41004030)
