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作者:

Wang, Guoquan (Wang, Guoquan.) | Bao, Yan (Bao, Yan.) | Gan, Weijun (Gan, Weijun.) | Geng, Jianghui (Geng, Jianghui.) | Xiao, Gengru (Xiao, Gengru.) | Shen, Jack S. (Shen, Jack S..)

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Scopus SCIE

摘要:

We have developed a stable North China Reference Frame 2016 (NChina16) using five years of continuous GPS observations (2011.8-2016.8) from 12 continuously operating reference stations (CORS) fixed to the North China Craton. Applications of NChina16 in landslide and subsidence studies are illustrated in this article. A method for realizing a regional geodetic reference frame is introduced. The primary result of this study is the seven parameters for transforming Cartesian ECEF (Earth-Centered, Earth-Fixed) coordinates X, Y, and Z from the International GNSS Service Reference Frame 2008 (IGS08) to NChina16. The seven parameters include the epoch that is used to align the regional reference frame to IGS08 and the time derivatives of three translations and three rotations. The GIPSY-OASIS (V6.4) software package was used to obtain the precise point positioning (PPP) daily solutions with respect to IGS08. The frame stability of NChina16 is approximately 0.5 mm/year in both horizontal and vertical directions. This study also developed a regional model for correcting seasonal motions superimposed into the vertical component of the GPS-derived displacement time series. Long-term GPS observations (1999-2016) from five CORS in North China were used to develop the seasonal model. According to this study, the PPP daily solutions with respect to NChina16 could achieve 2-3 mm horizontal accuracy and 4-5 mm vertical accuracy after being modified by the regional model. NChina16 will be critical to study geodynamic problems in North China, such as earthquakes, faulting, subsidence, and landslides. The regional reference frame will be periodically updated every few years to mitigate degradation of the frame with time and be synchronized with the update of IGS reference frame.

关键词:

GPS Landslide North China Regional reference frame Subsidence Transformation

作者机构:

  • [ 1 ] [Wang, Guoquan]Univ Houston, Dept Earth & Atmospher Sci, Houston, TX 77204 USA
  • [ 2 ] [Bao, Yan]Beijing Univ Technol, Beijing Collaborat Innovat Ctr Metropolitan Trans, Beijing 100124, Peoples R China
  • [ 3 ] [Gan, Weijun]China Earthquake Adm, Inst Geol, State Key Lab Earthquake Dynam, Beijing 100029, Peoples R China
  • [ 4 ] [Geng, Jianghui]Wuhan Univ, GNSS Res Ctr, Wuhan 430079, Hubei, Peoples R China
  • [ 5 ] [Xiao, Gengru]East China Univ Technol, Key Lab Digital Land & Resources Jiangxi Prov, Nanchang 330013, Jiangxi, Peoples R China
  • [ 6 ] [Shen, Jack S.]Shanghai Jiao Tong Univ, Dept Civil Engn, Shanghai 200240, Peoples R China

通讯作者信息:

  • [Bao, Yan]Beijing Univ Technol, Beijing Collaborat Innovat Ctr Metropolitan Trans, Beijing 100124, Peoples R China

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来源 :

JOURNAL OF GEODYNAMICS

ISSN: 0264-3707

年份: 2018

卷: 115

页码: 10-22

2 . 3 0 0

JCR@2022

ESI学科: GEOSCIENCES;

ESI高被引阀值:65

被引次数:

WoS核心集被引频次: 18

SCOPUS被引频次: 22

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

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