气候变化领域集成服务门户(CCPortal): GPS Imaging of Vertical Bedrock Displacements: Quantification of Two-Dimensional Vertical Crustal Deformation in China

CCPortal

DOI	10.1029/2020JB020951
	GPS Imaging of Vertical Bedrock Displacements: Quantification of Two-Dimensional Vertical Crustal Deformation in China
	Pan Y.; Hammond W.C.; Ding H.; Mallick R.; Jiang W.; Xu X.; Shum C.K.; Shen W.
发表日期	2021
ISSN	21699313
卷号	126 期号:4
英文摘要	The Global Positioning System (GPS) derived bedrock displacements respond to multiple geophysical effects, ranging from surface elastic loads to tectonic sources or viscoelastic uplifts stemming from Earth’s viscous mantle. In this study, the GPS-inferred vertical crustal velocities are rigorously estimated in mainland China. We integrate the GPS vertical velocity field with Gravity Recovery and Climate Experiment (GRACE) and GRACE Follow-On (GFO) data, adopting an empirical Spatial Structure Function (SSF), to image tectonic deformation in mainland China with respect to the International Terrestrial Reference Frame (ITRF) 2014. We present four profiles across China, which indicate that our new robust results are superior to kriging. Furthermore, we use the GRACE/GFO products to account for elastic deformation due to surface mass changes to isolate tectonic deformation signals at GPS sites within mainland China from 2002 to 2019. By integrating GPS and GRACE/GFO measurements, our results reveal the long-term spatial patterns of vertical tectonic motion in different blocks in mainland China. We conclude that significant steep velocity gradients occur at tectonic block boundaries that are attributable to locking and elastic strain accumulation on active block boundary faults. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	GPS imaging; GPS-derived vertical velocity; GRACE/GFO-inferred surface mass changes and elastic deformation; tectonic motion and geodynamics in mainland China
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187223
作者单位	School of Geodesy and Geomatics, Wuhan University, Wuhan, China; Nevada Geodetic Laboratory, Nevada Bureau of Mines and Geology, University of Nevada, Reno, Reno, NV, United States; State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing (LIESMARS), Wuhan University, Wuhan, China; Earth Observatory of Singapore, Nanyang Technological University, Singapore; Asian School of the Environment, Nanyang Technological University, Singapore; GNSS Research Center, Wuhan University, Wuhan, China; Division of Geodetic Science, School of Earth Sciences, Ohio State University, Columbus, OH, United States; Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, China
推荐引用方式 GB/T 7714	Pan Y.,Hammond W.C.,Ding H.,et al. GPS Imaging of Vertical Bedrock Displacements: Quantification of Two-Dimensional Vertical Crustal Deformation in China[J],2021,126(4).
APA	Pan Y..,Hammond W.C..,Ding H..,Mallick R..,Jiang W..,...&Shen W..(2021).GPS Imaging of Vertical Bedrock Displacements: Quantification of Two-Dimensional Vertical Crustal Deformation in China.Journal of Geophysical Research: Solid Earth,126(4).
MLA	Pan Y.,et al."GPS Imaging of Vertical Bedrock Displacements: Quantification of Two-Dimensional Vertical Crustal Deformation in China".Journal of Geophysical Research: Solid Earth 126.4(2021).