The uplift of the Qinghai–Tibet Plateau (TP) strongly influences climate change, both regionally and globally. Surface observation data from this region have limited coverage and are difficult to obtain. Consequently, the vertical crustal deformation velocity (VCDV) distribution of the TP is poorly constrained. In this study, the VCDV from the TP was inverted by using data from the gravity recovery and climate experiment (GRACE). We were able to obtain the vertical crustal movement by deducting the hydrological factors, based on the assumption that the gravity signal detected by GRACE is mainly composed of hydrological factors and vertical crustal movement. From the vertical crustal movement, we inverted the distribution of the VCDV across the TP. The results showed that the VCDV of the southern, eastern, and northern TP is ～1.1 mm/a, ～0.5 mm/a, and ?0.1 mm/a, respectively, whereas that of the region between the Qilian Haiyuan Fault and the Kunlun Fault is ～0.0 mm/a. These results are consistent with the distribution of crustal deformation, thrust earthquakes and faults, and regional lithospheric activity. The hydrology, crustal thickness, and topographic factors did not change the overall distribution of the VCDV across the TP. The influence of hydrological factors is marked, with the maximum differences being approximately ?0.4 mm/a in the northwest and 1.0 mm/a in the central area. The results of this study are significant for understanding the kinematics of the TP.

HuRong Duan;JunGang Guo;LingKang Chen;JiaShuang Jiao;HeTing Jian

College of Geomatics,Xi'an University of Science and Technology,Xi'an 710054,China;State Key Laboratory of Geodesy and Earth's Dynamics,Innovation Academy for Precision Measurement Science and Technology,Chinese Academy of Sciences,Wuhan 430077,China;College of Sciences,Guangdong University of Petrochemical Technology,Maoming Guangdong 525000,China;School of Resource and Environmental Engineering,Jiangxi University of Science and Technology,Ganzhou Jiangxi 341000,China;School of Geodesy and Geomatics,Wuhan University,Wuhan 430072,China

地球与行星物理（英文）

[1]HuRong Duan;JunGang Guo;LingKang Chen;JiaShuang Jiao;HeTing Jian-.Vertical crustal deformation velocity and its influencing factors over the Qinghai–Tibet Plateau based on satellite gravity data)[J].地球与行星物理（英文）,2022(04):366-377

VCDV,deducting

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