globalchange  > 气候减缓与适应
DOI: 10.1002/grl.50138
论文题名:
Real-time high-rate co-seismic displacement from ambiguity-fixed precise point positioning: Application to earthquake early warning
作者: Li X.; Ge M.; Zhang X.; Zhang Y.; Guo B.; Wang R.; Klotz J.; Wickert J.
刊名: Geophysical Research Letters
ISSN: 0094-9379
EISSN: 1944-9110
出版年: 2013
卷: 40, 期:2
起始页码: 295
结束页码: 300
语种: 英语
Scopus关键词: Ambiguity resolution ; Co-seismic displacement ; Earthquake early warning ; Information sources ; Moment magnitudes ; Precise point positioning ; Precision displacement ; Surface displacement ; Global positioning system ; Internet protocols ; Earthquakes ; accelerometer ; coseismic process ; displacement ; early warning system ; earthquake magnitude ; fault slip ; GPS ; real time ; satellite data ; seismic moment
英文摘要: Nowadays more and more high-rate real-time GPS data become available that provide a great opportunity to contribute to earthquake early warning (EEW) system in terms of capturing regional surface displacements, as an independent information source, useful for promptly estimating the magnitude of large destructive earthquake. In our study, we demonstrate the performance of the real-time ambiguity-fixed precise point positioning (PPP) approach using 5 Hz GPS data collected during El Mayor-Cucapah earthquake (Mw 7.2, 4 April 2010). The PPP-based displacements show to agree with accelerometerbased displacement at centimeter level. The key for successfully obtaining high precision displacements is the efficient ambiguity resolution. PPP with ambiguity fixing can result in correct permanent co-seismic offsets and correct recovery of moment magnitude and fault slip inversion at levels comparable to post-processing. © 2013. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874846061&doi=10.1002%2fgrl.50138&partnerID=40&md5=fa6fc8ff84ce4313a41abd5dd7d1f419
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6643
Appears in Collections:气候减缓与适应

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作者单位: German Research Centre for Geosciences (GFZ), Telegrafenberg, 14473 Potsdam, Germany

Recommended Citation:
Li X.,Ge M.,Zhang X.,et al. Real-time high-rate co-seismic displacement from ambiguity-fixed precise point positioning: Application to earthquake early warning[J]. Geophysical Research Letters,2013-01-01,40(2).
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