地下水超采区水位长趋势动态分析

Abstract

Abstract: A great deal of doubtful data that restrict the information from seismogenic body, distort the background cycles of underground water level, superimpose observation data of underground water level, and make the earthquake precursors difficult to be distinguished. In this paper, we analyzed observation data of underground water level of many years, and removed the follow tendency by linear regression analysis. The result shows that observation data of underground water level include 10-year quasi-cycle. In this way, we can effectually remove the influence of groundwater overdraft. Secondly, we can highlight the change of the background. In addition, we can amplify tides. All of these make the earthquake precursors to be distinguished easily.

Key words: Groundwater overdraft area, Water level 10-year quisi-cycle, Linear regression analysis, Earthquake precursor

CLC Number:

P315.7

ZHANG Su-xin, LIU Yao-wei, LU Ming-yong, ZHANG Zi-guang. Long tendency dynamic analysis of water level in groundwater overdrafting area[J]. EARTHQUAKE, 2007, 27(4): 51-58.

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Long tendency dynamic analysis of water level in groundwater overdrafting area

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