利用GRACE时变重力研究青藏高原的质量迁移

青藏高原复杂的质量迁移伴随着重力场的变化,利用时变重力研究青藏高原质量迁移成为一个重要的科学问题.重力卫星GRACE的应用,为人们了解青藏高原质量迁移规律和特征提供了重要的观测手段,也为青藏高原地球动力学问题提供了新的研究方法.相较于传统的陆地重力观测技术,GRACE实现了对全球连续的重力观测,其数据能够用于大尺度质量...

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

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.).