PPP网解UPD模糊度固定技术监测尼泊尔Ms8.1级地震对中国珠峰地区及周边地震同震位移

doi:10.11947/j.AGCS.2016.F036

测绘学报 ›› 2016, Vol. 45 ›› Issue (S2): 147-155.doi: 10.11947/j.AGCS.2016.F036

PPP网解UPD模糊度固定技术监测尼泊尔Ms8.1级地震对中国珠峰地区及周边地震同震位移

王虎^1,2, 李建成¹, 党亚民², 成英燕², 王解先³, 杨强², 许长辉², 张守建¹

1. 武汉大学测绘学院, 湖北武汉 430079;
2. 中国测绘科学研究院, 北京 100830;
3. 同济大学测绘与地理信息学院, 上海 200092

收稿日期:2016-11-25 修回日期:2016-12-20 出版日期:2017-05-20 发布日期:2017-05-20
通讯作者: 李建成 E-mail:jcli@whu.edu.cn
作者简介:王虎(1982-),男,博士,副研究员,主要从事GNSS精密定位和GNSS地学应用。E-mail:wanghu@casm.ac.cn
基金资助:
国家自然科学青年基金（41404034；41674031；41474011；41304030）；中国博士后科学基（2016M590715）；国家重点研发计划（2016YFB0501405）；测绘行业公益性专项（B1503）；国家863计划（2015AA124001）

Co-seismic Displacement of the 25 April 2015 Nepal Ms8.1 Earthquake Effects on the China's Mount Everest Area Derived from GNSS Data Using the PPP Network Solution by UPD Ambiguity Fixed Technology

WANG Hu^1,2, LI Jiancheng¹, DANG Yamin², Cheng Yingyan², WANG Jiexian³, YANG Qiang², XU Changhui², ZHANG Shoujian¹

1. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China;
2. Chinese Academy of Surveying & Mapping, Beijing 100830, China;
3. College of Surveying and Geo-informatics, Tongji University, Shanghai 200092, China

Received:2016-11-25 Revised:2016-12-20 Online:2017-05-20 Published:2017-05-20
Supported by:
The National Natural Science Foundation of China (Nos.41404034;41674031;41474011;41304030);The China Postdoctoral Science Foundation(No.2016M590715);Key Project of China national programs for Research and Development(No.2016YFB0501405);Special Research Grant for Surveying and Mapping Non-profit Public Service(No.B1503);The National High-tech Research and Development Program of China (863 Program) (No.2015AA124001)

摘要/Abstract

摘要：

利用UPD模糊度固定技术无需顾及基线解算基站地震所带来的影响，可以进行高精度非差PPP解算，“真实”获取地震周边地区GNSS站点高精度同震位移变化。为此，本文利用“国家基准一期工程”“中国大陆构造环境监测网络”以及国家测绘地理信息局在珠峰周边所观测的GNSS观测资料，基于UPD模糊度固定技术高精度非差解算2015年4月25日尼泊尔Ms8.1级地震对我国珠峰地区及周边地震同震位移影响。首先，本文选取全国及周边IGS均匀分布、站点稳定、远离震区的GNSS连续观测网络数据计算卫星端的宽、窄巷UPD，采用PPP网解UPD模糊度固定技术，对解算地震区域内的GNSS测站的载波相位模糊度进行固定，得到无模糊度的精确相位观测值，进行高精度非差PPP解算；通过对平静日IGS测站数据处理与ITRF2008历元坐标对比分析，验证了该方法的精确性；最后，对2015年4月25日、5月12日地震以及地震前后数据，进行了UPD模糊度固定技术的非差PPP解算，分析了中国珠峰地区及周边GNSS站的同震位移；同时也分析了中国珠峰地区在2005-2015年10年的位移变化情况。UPD模糊度固定技术整网解算的方法也证实了能够为GNSS用于监测地震同震位移等，提供了一种精确、可靠的技术手段。

关键词: UPD, 模糊度, PPP, 地震, 同震位移

Abstract:

Co-seismic displacement of the GNSS stations in areas surrounding the earthquake are accurately obtained using UPD (uncalibrated phase delay) ambiguity fixed technology without having to consider the effects of earthquake on the GNSS baseline calculating. During the 25 April 2015 Nepal Ms8.1 seismological GNSS data from the National Datum Engineering of China, the Crustal Movement Observation Network of China and the Mount Everest GNSS stations are calculated using UPD ambiguity fixed technology, then co-seismic displacement field of the China's Mount Everest and surrounding areas are derived and analyzed. Firstly, the UPD of wide-lane and narrow lane are estimated using the uniform distribution National GNSS and the surrounding IGS stability stations away from the seismic zones. Secondly, the float carrier phase ambiguities from each GNSS station in the seismic zones are fixed using the UPD of wide-lane and narrow until all the GNSS station are completed. Then whole network GNSS station coordinates are just only estimated using the accurately phase observations without ambiguity form all the GNSS stations. The GNSS data from IGS stations are used to verify the precision of the above method. Finally, Co-seismic displacement field of the China's Mount Everest are derived and particularly analyzed. From 2005 to 2015 year the displacement of China's Mount Everest are showed. Meanwhlile, this paper provides a precise and reliable method to monitor earthquake.

Key words: uncalibrated phase delay, ambiguity, precise point positioning, earthquake, co-seismic displacement

中图分类号:

P223

王虎, 李建成, 党亚民, 成英燕, 王解先, 杨强, 许长辉, 张守建. PPP网解UPD模糊度固定技术监测尼泊尔Ms8.1级地震对中国珠峰地区及周边地震同震位移[J]. 测绘学报, 2016, 45(S2): 147-155.

WANG Hu, LI Jiancheng, DANG Yamin, Cheng Yingyan, WANG Jiexian, YANG Qiang, XU Changhui, ZHANG Shoujian. Co-seismic Displacement of the 25 April 2015 Nepal Ms8.1 Earthquake Effects on the China's Mount Everest Area Derived from GNSS Data Using the PPP Network Solution by UPD Ambiguity Fixed Technology[J]. Acta Geodaetica et Cartographica Sinica, 2016, 45(S2): 147-155.

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PPP网解UPD模糊度固定技术监测尼泊尔Ms8.1级地震对中国珠峰地区及周边地震同震位移

Co-seismic Displacement of the 25 April 2015 Nepal Ms8.1 Earthquake Effects on the China's Mount Everest Area Derived from GNSS Data Using the PPP Network Solution by UPD Ambiguity Fixed Technology

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