| DOI: | 10.1002/2015GL063632
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| 论文题名: | Improved GPS-based coseismic displacement monitoring using high-precision oscillators |
| 作者: | Weinbach U.; Schön S.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9436
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| EISSN: | 1944-9167
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| 出版年: | 2015
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| 卷: | 42, 期:10 | | 起始页码: | 3773
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| 结束页码: | 3779
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| 语种: | 英语
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| 英文关键词: | atomic clock
; GPS
; kinematic PPP
; monitoring
; oscillator modeling
; seismology
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| Scopus关键词: | Atomic clocks
; Kinematics
; Monitoring
; Seismology
; Systematic errors
; Co-seismic displacement
; Global Navigation Satellite Systems
; Gps precise point positioning
; High-frequency noise
; Oscillator model
; Sampling frequencies
; Standard deviation
; Vertical displacements
; Global positioning system
; amplitude
; Chile earthquake 2010
; coseismic process
; displacement
; GNSS
; GPS
; kinematics
; seismic noise
; seismology
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| 英文摘要: | The determination of high-frequency displacements using Global Navigation Satellite Systems (GNSS) observations with sampling frequencies > 1 Hz has attracted much interest in recent years, e.g., in seismology. We propose a new concept for GPS Precise Point Positioning (PPP) that takes advantage of a highly stable oscillator connected to the GPS receiver by modeling its behavior. We show that the high-frequency noise of kinematic GPS height estimates can be reduced by a factor of up to 4 to the level of 2-3 mm and the overall standard deviation including systematic long periodic errors by a factor of up to 2 to the 1 cm level. Consequently, valuable small and currently hidden vertical displacements can be detected that are not visible with classical PPP. Using data of the 2010 Chile earthquake, we demonstrate that coseismic vertical displacements with an amplitude of only 5 mm can be recovered using PPP with the proposed clock modeling strategy. ©2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84931561328&doi=10.1002%2f2015GL063632&partnerID=40&md5=6272860008fe0c23d0a29a912c4f72c6
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/9051
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Institut für Erdmessung, Leibniz Universität Hannover, Hannover, Germany
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| Recommended Citation: | |
Weinbach U.,Schön S.. Improved GPS-based coseismic displacement monitoring using high-precision oscillators[J]. Geophysical Research Letters,2015-01-01,42(10).
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