福建地壳运动观测网络观测成果初步分析
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摘要
利用最新GAM IT软件,对福建省地壳运动观测网络的厦门、福州、泉州、龙岩、南平5个GPS基准站2004年3月1日至2005年3月6日的观测资料在ITRF2000全球坐标系统框架下,使用IGS精密星历数据及其核心观测站的坐标和运动速率为控制参数进行了统一解算,并利用GLOBK软件进行联合平差,得到了5个测站的观测精度。结果表明,福建地区形变南强北弱、东强西弱,且该地区随中国大陆较均匀地向SE(SEE)方向运动。
In order to obtain the background materials of earthquake prediction in the Fujian-Taiwan area,we use the controlling parameters of IGS precision ephemeris and its key observation stations'coordinates and movement velocities to uniformly resolve the one-year observation data(March 1,2004 to March 6,2005) of five GPS reference stations of Fujian Crust Movement Observation Network under the global frame of ITRF2000 with the latest GAMIT software,and use the GLOBK software to do an associated adjustment of the observation data,then obtain the stations'observation precisions and movement velocities.The results show that the Fujian area deforms strongly in the south and east but weakly in the north and west,and it moves toward SE(SEE) along with Chinese mainland.
In order to obtain the background materials of earthquake prediction in the Fujian-Taiwan area,we use the controlling parameters of IGS precision ephemeris and its key observation stations'coordinates and movement velocities to uniformly resolve the one-year observation data(March 1,2004 to March 6,2005) of five GPS reference stations of Fujian Crust Movement Observation Network under the global frame of ITRF2000 with the latest GAMIT software,and use the GLOBK software to do an associated adjustment of the observation data,then obtain the stations'observation precisions and movement velocities.The results show that the Fujian area deforms strongly in the south and east but weakly in the north and west,and it moves toward SE(SEE) along with Chinese mainland.
引文
[1]杨志强,王利,付宗堂.GPS监测青藏板块运动数据的GAM IT/GLOBK处理方法及有关问题[J],西安工程学院学报,1999,21(3):49-52.
[2]程晓、张艳梅,鄂栋臣,等.在PC机上运行GAM IT/GLOBK软件包[J].测量通报,2003(1):4-6.
[3]赖锡安,黄立人,徐菊生,等.中国大陆现今地壳运动[M].北京:地震出版社,2004.
[4]郭逢英,史粦华,丁学仁,等.GPS测量揭示的福建沿海地区的现今地形变[J].大地测量与地球动力学,2003,22(3):87-92.
[2]程晓、张艳梅,鄂栋臣,等.在PC机上运行GAM IT/GLOBK软件包[J].测量通报,2003(1):4-6.
[3]赖锡安,黄立人,徐菊生,等.中国大陆现今地壳运动[M].北京:地震出版社,2004.
[4]郭逢英,史粦华,丁学仁,等.GPS测量揭示的福建沿海地区的现今地形变[J].大地测量与地球动力学,2003,22(3):87-92.
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