E3S Web Conf.
Volume 206, 20202020 2nd International Conference on Geoscience and Environmental Chemistry (ICGEC 2020)
|Number of page(s)||5|
|Section||Earth Geological Energy Mining And Landform Protection|
|Published online||11 November 2020|
Effects of Ocean Tide Load on Vertical Crustal Deformation in Northeastern Margin of Qinghai Tibet Plateau
1 Faculty of Geomatics, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, China
2 Chinese Academy of Surveying and Mapping, Beijing, 100036, China
3 National-Local Joint Engineering Research Center of Technologies and Applications for National Geographic State Monitoring, Lanzhou, Gansu, 730070, China
4 Gansu Provincial Engineering Laboratory for National Geographic State Monitoring, Lanzhou, Gansu, 730070, China
* Author’s e-mail: email@example.com
Periodic crustal movement are mainly caused by ocean tides and changes of atmospheric pressure. In this project, the researcher has used the spherical harmonic coefficient of the ocean tide and actual observation data to study the impact on vertical crustal deformation due to changes of oceanic tide loading from 2012 to 2017 at the northeastern margin of the Qinghai-Tibet Plateau, based on the theory of crustal load deformation. The result shows that changes in oceanic tide loading have little impact on vertical crustal deformation compared with the impact of atmospheric loading at the northeastern margin of the Qinghai. The impact range of oceanic tide loading in this region is within ±3mm. In contrast, impact of atmospheric loading can reach ±12mm.
© The Authors, published by EDP Sciences, 2020
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