2011年日本9.0级地震前后GPS基线时间序列分析
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摘要
利用1999年初至2011年9月中国地壳运动观测网络基准站及中国大陆周边包含日本境内的IGS基准站的资料,分析了2011年3月11日日本9.0级地震前日本境内及周边IGS基准站基线时间序列的变化情况。讨论了该地震对中国大陆GPS基准站的同震影响,并对地震后中国大陆GPS基线时序结果的变化情况进行了总结分析。通过分析认为,日本大震后我国东部地区部分GPS基线开始转折拉伸,因而一定程度上缓解了这些基线的趋势性缩短,但是东部地区仍然有部分GPS基线的变化趋势基本不受日本地震的影响,近几年以来的趋势性异常至今仍然存在。
By the use of the data recorded by reference stations of the Project of "China Crust Movement Measuring Network" and IGS reference stations at the surrounding of the mainland of China including Japan from early 1999 to Sep.,2011,we analyze the variations of baseline time-series recorded by IGS reference stations before the Tohoku-oki M9.0 earthquake on Mar.11,2011 in Japan and its surrounding.Then we discuss about the co-seismic influence of Tohoku-oki M9.0 earthquake to the GPS reference stations in China,and summarize the changes of GPS baseline time series in China after the earthquake in Japan.By analyzing changes of GPS baseline time-series,we think that some GPS baseline time-series in the east of China turn to stretch after Tohoku-oki M9.0 earthquake,which can relieve its shortening tendency in some extent.However,there also exist some GPS baseline time-series whose tendency variations are almost not influenced by Tohoku-oki M9.0 earthquake,and its trend anomaly have kept for years in recent years.
By the use of the data recorded by reference stations of the Project of "China Crust Movement Measuring Network" and IGS reference stations at the surrounding of the mainland of China including Japan from early 1999 to Sep.,2011,we analyze the variations of baseline time-series recorded by IGS reference stations before the Tohoku-oki M9.0 earthquake on Mar.11,2011 in Japan and its surrounding.Then we discuss about the co-seismic influence of Tohoku-oki M9.0 earthquake to the GPS reference stations in China,and summarize the changes of GPS baseline time series in China after the earthquake in Japan.By analyzing changes of GPS baseline time-series,we think that some GPS baseline time-series in the east of China turn to stretch after Tohoku-oki M9.0 earthquake,which can relieve its shortening tendency in some extent.However,there also exist some GPS baseline time-series whose tendency variations are almost not influenced by Tohoku-oki M9.0 earthquake,and its trend anomaly have kept for years in recent years.
引文
黄立人,符养.2007.GPS连续观测站的噪声分析[J].地震学报,29(2):197-202.
黄立人,高砚龙,任立生,等.2006.关于NEU(ENU)坐标系统[J].大地测量与地球动力学,26(1):97-99.
黄立人.2006.GPS基准站时间序列的噪声特性分析[J].大地测量与地球动力学,26(2):31-33.
敬少群,王佳卫,吴云,等.2006.用GPS时间序列获取中国大陆微动态应变场[J].地震学报,28(5):478-484.
孔祥元,郭际明,刘宗泉,等.2001.大地测量学基础[M].武汉:武汉大学出版社.
王敏,李强,王凡,等.2011.全球定位系统测定的2011年日本宫城MW9.0级地震远场同震位移[J].科学通报,56(20):15931596.
王敏,沈正康,董大南.2005a.非构造形变对GPS连续站位置时间序列的影响和修正[J].地球物理学报,48(5):1045-1052.
王敏,张祖胜,许明元.2005b.2000国家GPS大地控制网的数据处理和精度评估[J].地球物理学报,48(4):817-823.
王敏.2007.GPS数据处理方面的最新进展及其对定位结果的影响[J].国际地震动态,(7):3-8.
武艳强,江在森,杨国华.2007.最小二乘配置方法在提取GPS时间序列信息中的应用[J].国际地震动态,(7):99-103.
武艳强,江在森,杨国华.2009.利用GPS时间序列对块体运动进行空间信息分离[J].地震研究,32(3):306-311.
杨国华,张风霜,武艳强,等.2007.GPS基准站坐标分量噪声的时间序列与分类特征[J].国际地震动态,(7):80-86.
尹继尧,朱元清.2011.日本9.0级地震断层分布和错动方式探讨[J].大地测量与地球动力学,31(2):12-16.
张风霜,武艳强.2011.中国大陆内部GPS连续观测站基线分析[J].地震研究,34(3):337-343.
DeMets C,Gordon R G,Argus D F,et al.1994.Effect of recent revisionsto the geomagnetic reversal time scale on estimates of current platemotions[J].Geophys Res Lett,21(20):2191-2194.
Herring T A,King R W,McClusky S C.2010.GAMIT Reference Manual:GPS Analysis at MIT.Release10.4[M].Cambridge MA:Department of Earth,Atmospheric,and Planetary Sciences,MassachussetInstitute of Technology.
黄立人,高砚龙,任立生,等.2006.关于NEU(ENU)坐标系统[J].大地测量与地球动力学,26(1):97-99.
黄立人.2006.GPS基准站时间序列的噪声特性分析[J].大地测量与地球动力学,26(2):31-33.
敬少群,王佳卫,吴云,等.2006.用GPS时间序列获取中国大陆微动态应变场[J].地震学报,28(5):478-484.
孔祥元,郭际明,刘宗泉,等.2001.大地测量学基础[M].武汉:武汉大学出版社.
王敏,李强,王凡,等.2011.全球定位系统测定的2011年日本宫城MW9.0级地震远场同震位移[J].科学通报,56(20):15931596.
王敏,沈正康,董大南.2005a.非构造形变对GPS连续站位置时间序列的影响和修正[J].地球物理学报,48(5):1045-1052.
王敏,张祖胜,许明元.2005b.2000国家GPS大地控制网的数据处理和精度评估[J].地球物理学报,48(4):817-823.
王敏.2007.GPS数据处理方面的最新进展及其对定位结果的影响[J].国际地震动态,(7):3-8.
武艳强,江在森,杨国华.2007.最小二乘配置方法在提取GPS时间序列信息中的应用[J].国际地震动态,(7):99-103.
武艳强,江在森,杨国华.2009.利用GPS时间序列对块体运动进行空间信息分离[J].地震研究,32(3):306-311.
杨国华,张风霜,武艳强,等.2007.GPS基准站坐标分量噪声的时间序列与分类特征[J].国际地震动态,(7):80-86.
尹继尧,朱元清.2011.日本9.0级地震断层分布和错动方式探讨[J].大地测量与地球动力学,31(2):12-16.
张风霜,武艳强.2011.中国大陆内部GPS连续观测站基线分析[J].地震研究,34(3):337-343.
DeMets C,Gordon R G,Argus D F,et al.1994.Effect of recent revisionsto the geomagnetic reversal time scale on estimates of current platemotions[J].Geophys Res Lett,21(20):2191-2194.
Herring T A,King R W,McClusky S C.2010.GAMIT Reference Manual:GPS Analysis at MIT.Release10.4[M].Cambridge MA:Department of Earth,Atmospheric,and Planetary Sciences,MassachussetInstitute of Technology.
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