中国地壳运动观测网络中的绝对重力测定

基金项目: 国家重大科学工程"中国地壳运动观测网络"资助项目;国家自然科学基金资助项目(40274020);中国科学院知识创新工程资助项目(KZCX2-106)

详细信息

Absolute Gravity Determination in the Crustal Movement Observation Network of China

Institute of Geodesy and Geophysics, Chinese Academy of Sciences, 174 Xudong Road, Wuhan 430077, China

摘要: 介绍了中国地壳运动观测网络项目——用FG5型绝对重力仪对26个基准站(包括武汉九峰站)进行的两期绝对重力测定工作。给出两次绝对重力测定精度,达到了网络工程中心的技术设计 ≤ 5×10^-8ms^-2要求。对少数基准站的观测精度偏大原因作了初步分析并对该项目今后工作的开展提出建议。
- 网络工程 /
- 绝对重力测定 /
- 测定精度
Abstract: This paper introduces the absolute gravity determinations carried out by the Institute of Geodesy and Geophysics, Chinese Academy of Sciences using the FG5 absolute gravitmeter at 26 fundamental stations of the Chinese Crustal Movement Observation Network.The accuracies of absolute gravity determinations in two campaigns are given, which can meet the technical quality requirements (less than 5×10^-8 ms^-2).The reasons of the lower observational accuracy at few sites are analyzed and some suggestions for the absolute gravity observations in future work are put forward.
- network project /
- absolute gravity determination /
- observational accuracy