ABSOLUTE GRAVITY MEASUREMENT AT JIUFENG DYNAMIC GEODESY CENTRAL EXPERIMENT STATION
Zhang Weimin ;and Wang Yong
Institute of Geodesy and Geophysics,Dynamic Geodesy Center Experiment Station, CAS, Wuhan\ 430077
Abstract The sixtyeight repeat observations have been done at Jiufeng dynamic geodesy center experiment station using FG5112 absolute gravimeter in the recent ten years. The standard deviation for each time is less than 2×10 -8 ms -2, and the results show that the environment noise of Jiufeng station is very little and the geologic condition is stable. By the processing and analysis of the observed data, it shows that the increasing rate of gravity at Jiufeng station is about 1×10 -8 ms -2 /a, which corresponds to the vertical displacement rate -0.38 cm/a. Moreover, the influences of groundwater level variation and the like on the result should not be ignored.
Key words ：
absolute gravimeter
repeat observation
standard deviation
gravity variation
groundwater level
Received: 01 January 1900
Corresponding Authors:
Zhang Weimin
Cite this article:
Zhang Weimin,and Wang Yong. ABSOLUTE GRAVITY MEASUREMENT AT JIUFENG DYNAMIC GEODESY CENTRAL EXPERIMENT STATION[J]. , 2007, 27(4): 44-46.
Zhang Weimin,and Wang Yong. ABSOLUTE GRAVITY MEASUREMENT AT JIUFENG DYNAMIC GEODESY CENTRAL EXPERIMENT STATION[J]. jgg, 2007, 27(4): 44-46.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2007/V27/I4/44
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