The Effect of One Degree Term of Chromatic Polynomial of CG-5 Gravimeter on Gravity Change in Ningxia Area
Abstract We use the 2010-2012 gravity data from the Ningxia survey network, recalculated by a one degree term of scale parameter of the CG-5 gravimeter. We conduct a comparative analysis of the impact of correction coefficient term grid values at different time scales produced by the gravitational field before the Yinchuan ML5.0 earthquake. Our results show: (1) CG-5 gravimeter one degree scale parameter decreases with time, and continuesa declining trend; (2) different time scale gravity field changes are significantly reduced, highlighting the “0” contour phenomenon.
Key words ：
one degree term of scale parameter
Ningxia gravity survey network;change of gravity field
the “0&rdquo
contour
Cite this article:
FENG Jianlin,TAN Yujuan,QIN Jianzeng et al. The Effect of One Degree Term of Chromatic Polynomial of CG-5 Gravimeter on Gravity Change in Ningxia Area[J]. jgg, 2017, 37(3): 319-322.
FENG Jianlin,TAN Yujuan,QIN Jianzeng et al. The Effect of One Degree Term of Chromatic Polynomial of CG-5 Gravimeter on Gravity Change in Ningxia Area[J]. jgg, 2017, 37(3): 319-322.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2017/V37/I3/319
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