[1]DUAN Hu-rong,ZHANG Yong-zhi,XU Hai-jun,et al.Crustal Horizontal Movement Velocity in West China Inversed by Satellite Gravity Data[J].Journal of Seismological Research,2011,34(03):0-.
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Crustal Horizontal Movement Velocity in West China Inversed by Satellite Gravity Data
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
34
Number of periods:
2011 03
Page number:
0-
Column:
Public date:
2011-09-28
- Title:
- Crustal Horizontal Movement Velocity in West China Inversed by Satellite Gravity Data
- CLC:
- P315.72
- DOI:
- -
- Abstract:
- The relationship between the horizontal movements of the erect cube and its exterior gravitational field changes in the fixed coordinates are discussed. The mathematical model between the horizontal movements of the crust and the changes of the Earth exterior gravitational field is established. According to this model, using Gravity Recovery and Climate Experiment(GRACE)satellite's data from 2003 to 2008, we calculate the gravitational field changes, and inverse the velocity of the horizontal crustal movement in West China through the Particle Swarm Optimization(PSO)algorithm. The results show that there exists an overall and horizontal movement of the crust in West China from South to North with the trend of eastward movement. The velocity declines gradually from South to North, except Kunming region(whose crust moves from North to South). In the North-South direction and East-West direction, the velocities of horizontal crustal movement of the Qinghai-Tibet plateau are 10-35mm/a and 1-25mm/a respectively. In the North-South direction and East-West direction, the velocities of Tarim Basin are 5-15 mm/a and 4-7mm/a respectively.
- References:
- -
- Similar References:
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Last Update:
1900-01-01