[1]LIANG Chenhao,SHEN Chongyang,WANG Jiapei.Simulation of the Relationship between the Surface Deformation and the Gravity Variation Based on Vertical Cuboid[J].Journal of Seismological Research,2021,44(02):162-169.
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Simulation of the Relationship between the Surface Deformation and the Gravity Variation Based on Vertical Cuboid
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
44
Number of periods:
2021 02
Page number:
162-169
Column:
Public date:
2021-06-30
- Title:
- Simulation of the Relationship between the Surface Deformation and the Gravity Variation Based on Vertical Cuboid
- CLC:
- P315.721
- DOI:
- -
- Abstract:
- Based on the coupling theory of deformation and density variation,the vertical gradient of gravity in time-varying field is calculated.By the help of the vertical cuboid and average uplift rate of the Tibetan plateau,the process of the mountain movement is simulated,and the variation of gravity and its vertical gradient caused by surface deformation is simulated in accordance with the Airy equilibrium model.The results show that in the process of mountain uplift,the gravity value gradually decreases.It is speculated that the gravity decrease is caused by the decrease of medium density and the increase of the height of the measuring point.The mountaintop where the maximum gravity value appears rises for 5 cm,as a result,the maximum gravity changes for-14 μGal,and the corresponding gravity gradient is about -2.6 E.Due to the time effect in the gravity gradient field,there is a certain difference between the vertical gravity gradient and the static gravity gradient.
- References:
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Last Update:
2021-06-30