甘肃“十五”数字化水位观测资料分析及地震前兆监测效能评估
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摘要
通过对甘肃地区的"十五"数字化观测台网水位资料的年、月、日动态特征以及主要影响数字化水位资料的干扰因素等进行分析,发现大多数井点的资料连续可靠,特大地震的震后效应明显。目前数字化水位观测中存在的问题是个别井点的水位动态存在一些明显的突变和缺数。根据以往的震例总结,年变规律明显的井点,有可能在地震中期或中短期前兆异常监测中发挥一定的效能;观测资料日均值月动态和时均值日动态规律明显的井点,在地震短期或短临前兆监测中有可能发挥一定的效能。潮汐理论用于模拟观测资料的处理方法,也可以在数字化观测资料中应用。总体来说,甘肃地区"十五"数字化水位观测质量明显要高于"九五"台网的质量。
This paper analyzed the data of"The Tenth Five"digital water level measurement system.We discussed the characteristics of year,month and day digital water level and application of digital data,and some maininterference factors in the measurement of digital water level.It was found that the data of most well points are reliable,where the post-seismic effect is very obvious.At present,the main problem in measuring digital water level is some significant abrupt shifts and omissions in dividual points.Judging from previous earthquake examples,well points with obvious annual variations may have some efficiency in monitoring short-term or short-impending precursor of earthquake.The theory of tides is suitable to process the analog observation data,and to process the digital data as well.In the main the quality of digital water level observation using"The Tenth Five"system has an advantage over"The Ninth Five"system in Gansu region.
This paper analyzed the data of"The Tenth Five"digital water level measurement system.We discussed the characteristics of year,month and day digital water level and application of digital data,and some maininterference factors in the measurement of digital water level.It was found that the data of most well points are reliable,where the post-seismic effect is very obvious.At present,the main problem in measuring digital water level is some significant abrupt shifts and omissions in dividual points.Judging from previous earthquake examples,well points with obvious annual variations may have some efficiency in monitoring short-term or short-impending precursor of earthquake.The theory of tides is suitable to process the analog observation data,and to process the digital data as well.In the main the quality of digital water level observation using"The Tenth Five"system has an advantage over"The Ninth Five"system in Gansu region.
引文
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汪成民,车用太,万迪坤,等.1988.地下水微动态研究[M].北京:地震出版社.
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张淑亮,李冬梅,范雪芳.2005.井水位前驱波与气压、风、降雨及强震关系的分析[J].地震,25(3):69-77.
张素欣,张子广,刘俊明,等.2002.数字化水位观测资料的应用与研究[J].地震,22(4):89-98.
张昱,钟美娇,杨晓鹏,等.2008.平凉C11井地下流体数字化水位观测资料的分析[J].地震,28(4):128-135.
车用太,赵文忠,鱼金子,等.2006.京津冀地区井水位的数字化观测及其地震前兆监测效能评估[J].地震,26(4):103-111.
耿杰,陈安方,潘双进.2008.无线地下流体数据监测系统水位观测数据与模拟水位观测数据一致性研究[J].地震研究,31(3):238-243.
刘成龙,王广才,张卫华,等.2009.三峡井网井水位对汶川8.0级地震的同震响应特征研究[J].地震学报,31(2):188-194.
刘国俊,杨海祥,王向阳,等.2009.山西流体观测井水位与气压相关性分析[J].山西地震,138(2):7-10.
孙小龙,刘耀炜,王博.2008.宾川井对印尼大震的同震响应特征及其机理研究[J].地震,28(3):69-78.
唐九安,白亚平,杨淑英,等.1993.甘06井水位潮汐参数的震前中期异常[J].地震,13(6):21-28.
唐九安,常千军,白亚平,等.1995.甘18井水位观测结果与景泰地震[J].地震地磁观测与研究,16(3):56-61.
汪成民,车用太,万迪坤,等.1988.地下水微动态研究[M].北京:地震出版社.
王吉易,董守玉,陈建民,等.1997.地下流体地震预报方法[M].北京:地震出版社.
张立,赵洪声,刘耀炜,等.2009.云南会泽井水位与水温相关关系及其变异的地震预测意义[J].地震研究,32(3):228-230.
张淑亮,李冬梅,范雪芳.2005.井水位前驱波与气压、风、降雨及强震关系的分析[J].地震,25(3):69-77.
张素欣,张子广,刘俊明,等.2002.数字化水位观测资料的应用与研究[J].地震,22(4):89-98.
张昱,钟美娇,杨晓鹏,等.2008.平凉C11井地下流体数字化水位观测资料的分析[J].地震,28(4):128-135.
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