LN-3A水位仪记录的高采样率大震水震波特点及仪器改进
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摘要
分析了海南前兆台网水位仪对苏门答腊M_S 8.7地震和我国四川汶川Ms 8.0地震的高采样率水震波记录情况,从中可较明显地看到地震波引起的井水位详细变化,但也存在水震波的丢头、仪器时间存在误差,第一代仪器水震波相互覆盖等现象,提出了在水位仪中增加在线缓存记录、自动定时校时功能等改进建议。
The high sampling rate water-seismic waves about Sumatra-Andeman strong earthquakes and Wenchuan earthquake recorded by water-level meter of Hainan digital seismic precursor network were analyzed.The detailed variations of well water-level caused by seismic waves can be distinguished from the water-seismic waves.But there were some problems, such as the heads of water-seismic waves were missed recording, time errors of water-level meter relatively great and water-seismic waves recorded by the first generation water-level meter sometimes were covered each other.The some improvements: such as adding function of data online cache and automatic correcting time in water-level meter were put forward.
The high sampling rate water-seismic waves about Sumatra-Andeman strong earthquakes and Wenchuan earthquake recorded by water-level meter of Hainan digital seismic precursor network were analyzed.The detailed variations of well water-level caused by seismic waves can be distinguished from the water-seismic waves.But there were some problems, such as the heads of water-seismic waves were missed recording, time errors of water-level meter relatively great and water-seismic waves recorded by the first generation water-level meter sometimes were covered each other.The some improvements: such as adding function of data online cache and automatic correcting time in water-level meter were put forward.
引文
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陈大庆.我国大陆水位、水温观测对印尼8． 7级地震的同震响应特征及机理研究[D]//学位论文.北京:中国地震局地壳应力所,2006:1-3．
殷积涛.井孔水位对几种含水层变形的响应函数[M]//地震预报方法实用化研究文集:水位水化专集.北京:地震出版社,1990．
刘澜波,郑香嫒,彭贵荣.地震波引起洼里井水位震荡的初步分析[J].地震,1983,5:12-19．
刘江,熊水英,李富光,等.水震波中的PG、SG震相[J].华北地震科学,1986,4(3) :43-47．
舒优良,张世民.周至深井水震波数字化记录与地震波记录的对比研究[J].地震地磁观测与研究,2003,24(5) :26-31．
汪成民,车用太,万迪堃,等.地下水微动态研究[M].北京:地震出版社,1988:81-116．
张子广,万迪堑,董守玉.水震波与地震面波的对比研究及其应用[J].地震,1998,18(4) :399-403．
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