Mass migration of Qinghai-Tibet Plateau studied by using GRACE time-variable gravity

doi:10.7523/j.issn.2095-6134.2021.01.002

Abstract

Abstract: The complex mass migration in the Qinghai-Tibet Plateau is accompanied by the change of gravity field, and it is an important scientific problem to study the mass migration of the Qinghai-Tibet Plateau by using time-varying gravity. Application of gravity satellite GRACE (gravity recovery and climate experiment) provides an important observation means for us to understand the mass migration characteristics of the Qinghai-Tibet Plateau, and provides a new approach for studying the geodynamics of the Qinghai-Tibet Plateau. Compared with traditional land-based observation, GRACE realizes global and continuous gravity observation, and enable to study the larger scale problems about mass migration, and satellite gravity shows unique advantage in the research over Qinghai-Tibet Plateau areas. This paper reviews the latest progress in the study of mass migration over the Qinghai-Tibet Plateau using time-varying gravity data over the past ten years, especially the research status, scientific achievements, and existing problems of various factors causing mass change (ice and snow melting, lake water level change, groundwater change, tectonic movement, etc.).

Key words: Qinghai-Tibet Plateau, mass migration, time-variable gravity, GRACE, tectonic movement

CLC Number:

P223

RAO Weilong, ZHANG Lan, WANG Qiuyu, TANG He, SUN Wenke. Mass migration of Qinghai-Tibet Plateau studied by using GRACE time-variable gravity[J]. Journal of University of Chinese Academy of Sciences, 2021, 38(1): 9-22.

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