地震研究

云南GNSS基准站连续观测资料应用研究^*

洪敏,邵德盛,李春光,王伶俐

(云南省地震局,云南昆明 650224)

关键词：GNSS基准站; 基线; 点位移; 时间序列; 活动断层; 缅甸地震

Exploration for the Application of Continuous Observations Data Recorded by GNSS Reference Station in Yunnan

HONG Min,SHAO De-sheng,LI Chun-guang,WANG Ling-li

(Earthquake Administration of Yunnan Province,Kunming 650224,Yunnan,China)

Keywords：GNSS Reference Station; baseline; point displacment; time series; active faults; Myanmar M7.2 earthquake

备注

收稿日期:2012-05-07
基金项目:云南省地震局青年基金课题“GNSS基准站观测数据处理及应用初探(201101)”资助.

摘要

全文

图/表

参考文献

对云南28个GNSS基准站所记录的数据进行跟踪处理,得到了GNSS基准站点之间基线和点位移变化的时间序列,通过对时间序列的分析,获得了云南省内部分活动断层的现今活动特征以及在大震前块体的活动情况,为利用GNSS数据探索地震预测预报进行了初步尝试。

Through track processing of data recorded by 28 GNSS Reference Stations,we obtained time series variation of baseline length and point displacement. Then analyzing these time-series results,we obtained the recent activity characteristics of some active faults and the block movements before the major earthquakes in Yunnan. The GNSS data is applied for earthquake prediction preliminarily.

引言
1 数据处理
2 基线资料分析
3 点位移的应用
4 总结

图1 斜跨小江断裂的两条基线时间序列(a)昆明—昭通鱼洞;(b)蒙自—通海<br/>Fig.1 The time series of the two baselines which cross aslant the Xiaojiang Fault(a)Kunming-Zhaotong,Yudong;(b)Mengzi-Tonghai

图1 斜跨小江断裂的两条基线时间序列(a)昆明—昭通鱼洞;(b)蒙自—通海
Fig.1 The time series of the two baselines which cross aslant the Xiaojiang Fault(a)Kunming-Zhaotong,Yudong;(b)Mengzi-Tonghai

图2 中甸—云龙基线时间序列<br/>Fig.2 The time series of Zhongdian-Yunlong baseline

图2 中甸—云龙基线时间序列
Fig.2 The time series of Zhongdian-Yunlong baseline

图3 跨红河断裂中、南段的基线时间序列(a)新平—云龙;(b)新平—金平<br/>Fig.3 The time series of baselines which cross the middle and south segment of the Red River Fault(a)Xinping-Yunlong;(b)Xinping-Jinping

图3 跨红河断裂中、南段的基线时间序列(a)新平—云龙;(b)新平—金平
Fig.3 The time series of baselines which cross the middle and south segment of the Red River Fault(a)Xinping-Yunlong;(b)Xinping-Jinping

图4 川滇菱形块体内部的基线时间序列(a)楚雄—丽江;(b)楚雄—通海;(c)昆明—新平;(d)楚雄—元谋<br/>Fig.4 The time series of baselines in the interior of Sichuan Yunnan Rhombus Block(a)Chuxiong-Lijiang;(b)Chuxiong-Tonghai;(c)Kunming-Xinping;(d)Chuxiong-Yuanmou

图4 川滇菱形块体内部的基线时间序列(a)楚雄—丽江;(b)楚雄—通海;(c)昆明—新平;(d)楚雄—元谋
Fig.4 The time series of baselines in the interior of Sichuan Yunnan Rhombus Block(a)Chuxiong-Lijiang;(b)Chuxiong-Tonghai;(c)Kunming-Xinping;(d)Chuxiong-Yuanmou

图5 滇西北东条带基线时间序列图(a)云龙—丽江;(b)施甸—永胜;(c)思茅—墨江;(d)施甸—瑞丽<br/>Fig.5 The time series of baselines in the northeast bands of Western Yunnan(a)Yunlong-Lijiang;(b)Shidian-Yongsheng;(c)Simao-Mojiang;(d)Shidian-Ruili

图5 滇西北东条带基线时间序列图(a)云龙—丽江;(b)施甸—永胜;(c)思茅—墨江;(d)施甸—瑞丽
Fig.5 The time series of baselines in the northeast bands of Western Yunnan(a)Yunlong-Lijiang;(b)Shidian-Yongsheng;(c)Simao-Mojiang;(d)Shidian-Ruili