Active Motion of Tectonic Blocks in East Asia: Evidence from GPS Measurement

Jin, Shuanggen; Zhu, Wei

doi:10.1111/j.1755-6724.2003.tb00110.x

Cited by 15 publications

(1 citation statement)

References 18 publications

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“…For example, East Asia is located in a complex convergent zone with several plates, e.g., Pacific, North American, Eurasian, and Philippine Sea plates (Jin and Zhu, 2003). Subduction of the Philippine Sea and Pacific plates and expulsion of Eurasian plate with Indian plate collision making this region one of the most seismically active and deforming regions in the world.…”

Section: Crustal Deformation Monitoringmentioning

confidence: 99%

Observing and understanding the Earth system variations from space geodesy

Jin

Dam

Wdowinski

2013

Journal of Geodynamics

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a b s t r a c tThe interaction and coupling of the Earth system components that include the atmosphere, hydrosphere, cryosphere, lithosphere, and other fluids in Earth's interior, influence the Earth's shape, gravity field and its rotation (the three pillars of geodesy). The effects of global climate change, such as sea level rise, glacier melting, and geoharzards, also affect these observables. However, observations and models of Earth's system change have large uncertainties due to the lack of direct high temporal-spatial measurements. Nowadays, space geodetic techniques, particularly GNSS, VLBI, SLR, DORIS, InSAR, satellite gravimetry and altimetry provide a unique opportunity to monitor and, therefore, understand the processes and feedback mechanisms of the Earth system with high resolution and precision. In this paper, the status of current space geodetic techniques, some recent observations, and interpretations of those observations in terms of the Earth system are presented. These results include the role of space geodetic techniques, atmospheric-ionospheric sounding, ocean monitoring, hydrologic sensing, cryosphere mapping, crustal deformation and loading displacements, gravity field, geocenter motion, Earth's oblateness variations, Earth rotation and atmospheric-solid earth coupling, etc. The remaining questions and challenges regarding observing and understanding the Earth system are discussed.

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Section: Crustal Deformation Monitoringmentioning

confidence: 99%

Observing and understanding the Earth system variations from space geodesy

Jin

Dam

Wdowinski

2013

Journal of Geodynamics

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A Quantitative Analysis of the Decelerating Expansion in the South Hemisphere

Jin¹,

Zhu²

2003

Chinese J of Geophysics

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The closed differences of the latitude length rates at the latitude‐circle direction on the South Hemisphere and the convergent and spreading rates along global active plate boundaries are obtained from space geodetic data in a span of 20 years. Comparing these results with NUVEL1A predictions averaged the past 3 million years (Ma) shows that the closed differences of the latitude length rates at the latitude‐circle direction on the South Hemisphere are all positive. 91 percent of sites on the South Hemisphere move up vertically, except the several sites near the equator region. The present‐day spreading and convergent rates of active plate boundaries on the South Hemisphere are systemically smaller than NUVEL1A predictions averaged 3 Ma, while the changes of relative motions on the North Hemisphere are disorderly and unsystematic. All these show the present‐day motion characteristics of the South Hemisphere that is expanding at a slowing down rate.

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