LATEST ABSOLUTE GRAVITY MEASUREMENT AT SOME POINTSOF 2000 NATIONAL BASIC GRAVITY NETWORK
Zhang Hongwei 1) ;Dong Chaoyang 1) ;Zhao Dongming 2) ;Xiao Fan 1) ;Li Jianguo 1) ; and Ji Lidong 1)
1)61365 Troops，Tianjin 300140;2Surveying and Mapping Institute of Information Engineering University, Zhengzhou 450052
Abstract To analyze the long-term stability of some points of 2000 National Basic Gravity Network, the absolute gravimeter, FG5/240, was applied to the absolute gravity measurement for two benchmark points of 2000 National Basic Gravity Network, which are located in the Yongxing island and at Zhengzhou station, and the observation accuracy was proved to be better than 5×10 -8 ms -2. As a result, the differences between the observation values and the reference values at the two points of 2000 National Basic Gravity Network are obtained.
Key words ：
FG5/240 absolute gravimeter
2000 National Basic Gravity Network
absolute gravity measurement
vertical gradient
annual variation of gravity
Received: 01 January 1900
Corresponding Authors:
Zhang Hongwei
Cite this article:
Zhang Hongwei ,Dong Chaoyang ,Zhao Dongming et al. LATEST ABSOLUTE GRAVITY MEASUREMENT AT SOME POINTSOF 2000 NATIONAL BASIC GRAVITY NETWORK[J]. , 2011, 31(4): 52-55.
Zhang Hongwei ,Dong Chaoyang ,Zhao Dongming et al. LATEST ABSOLUTE GRAVITY MEASUREMENT AT SOME POINTSOF 2000 NATIONAL BASIC GRAVITY NETWORK[J]. jgg, 2011, 31(4): 52-55.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2011/V31/I4/52
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