强震前中子监测器计数率异常现象探索
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摘要
利用中国西藏羊八井中子监测器(国际地球物理年推荐的标准仪器)10年的资料,研究宇宙线高能粒子正常背景变化、干扰因素及其与地震有关的异常现象,发现在太阳活动、地磁活动平静的状态下,连续数天打破正常日变化规律和计数率增高现象(高于5倍均方差)可能是距台站一定范围内的强震特别是大震前的临震现象,并与宽频带数字记录到的地震前驱波及地磁日变化异常在时空分布上有较好的一致性。宇宙线高能粒子可能反映震前包括震源场在内的孕震立体电磁环境异常变化,其机理正在探索之中。
Using 10-year data of China Yangbajing neutron monitor,which is recommended by International Year of Planet Earth as Standard equipment,high-energy cosmic ray particles normal background variation,disturb factors and earthquake-related anomalous phenomena are studied. The count rate normal diurnal variations been broken for several days and increased phenomenon,which is 5 times higher than the mean square error,are found in the quiet state of the solar and geomagnetic activity. This phenomenon may be the precursors from an area of strong earthquake,especially for large earthquake. This phenomenon with broadband digital seismograph records precursor wave and anomaly of geomagnetic diurnal variations in the temporal and spatial distribution is a good consistency. High energy cosmic ray particles may be a reflection of the seismogenic process stereo electromagnetism environment anomaly variations before earthquake,hypocentral field included,and its mechanism needs more exploration.
Using 10-year data of China Yangbajing neutron monitor,which is recommended by International Year of Planet Earth as Standard equipment,high-energy cosmic ray particles normal background variation,disturb factors and earthquake-related anomalous phenomena are studied. The count rate normal diurnal variations been broken for several days and increased phenomenon,which is 5 times higher than the mean square error,are found in the quiet state of the solar and geomagnetic activity. This phenomenon may be the precursors from an area of strong earthquake,especially for large earthquake. This phenomenon with broadband digital seismograph records precursor wave and anomaly of geomagnetic diurnal variations in the temporal and spatial distribution is a good consistency. High energy cosmic ray particles may be a reflection of the seismogenic process stereo electromagnetism environment anomaly variations before earthquake,hypocentral field included,and its mechanism needs more exploration.
引文
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[3]PULINETS S A,GAIVORONSKA T B,and LEYVA CONTRERAS A,et al.Correlation analysis technique revealing ionospheric precursors of earthquakes[J].Natural Hazards and Earth System Sciences,2004,4(56):697-702.
[4]PULINETS S A.Ionospheric precursors of earth-quakes&Recent Advances intheory and practical ap-plications[J].TAO,2004,15(3):413-435.
[5]ALEKSANDRIN S,FORZAN F,GALPER A,et al.Origin of high-energy charged particle bursts in the near-Earth space[C]//Proceedings of the ICRC.Ham-burg,Germany,2001:4144-4147.
[6]BENCKS,CYAMUKUNGU M,CABRERAJ.Stud-y of correlations between waves and particle fluxes measured on board the DEMETER satellite[J].Ad-vances in Space Research,2008,42(9):1538-1549.
[7]LAGOUTTE D,BROCHOT J Y,CARVALHO D De,et al.The DEMETERscience mission centre[J].Planetary and Space Scicnce,2006,54(5):428-440.
[8]GALPCR A M,KOLDASHOVS V,and VORONOV S A.Highparticle flux variations as earthquake pre-diotors[J].Adv.Space Res,1995,15(11):131-134.
[9]聂思敏,张吉龙,谭有恒,等.羊八井宇宙线观测数据实时传输及处理系统[J].核电子学与探测技术,2007,27(1):14-17.NIE SI MIN,ZHANG JILONG,TAN Youheng,et al.Real ti me transmission and analysis of the Yangba-jing cosmic rays observation data[J].Nuclear Elec-tronics&Detection Technology,2007,27(1):14-17.(in Chinese)
[10]MURAKI Y,TSUCHIYA H,FUJIKI K,Et al.A solar neutron telescope in Tibet and its capability ex-amined by the1998November28th event[J].Astro-particle Physics,2007,28(1):119-131.
[11]杨又陵,赵根模,高国英,等.2001年11月14日昆仑山口西M8.1地震前的缓慢地震事件[J].国际地震动态,2003,40(9):1-4.YANG Youling,ZHAO Genmo,GAO Guoying,et al.The slow earthquake event occurring before west to Kunlun mountain pass earthquake of Ms8.1on November14,2001[J].Recent Developments in World Seismology,2003,9:1-4.(in Chinese)
[12]赵根模,杨港生,陈化然.寂静的前震与地震预测[J].地震,2001,21(1):69-77.ZHAO Genmo,YANG Gangsheng,CHEN Huaran.Quiescent foreshock and earthquake prediction[J].Earthquake,2001,21(1):69-77.(in Chinese)
[13]HI M A and LAIGLE M.Silent Heralds of megath-rust earthquakes?[J].Science,2004,305(5692):1917-1918.
[14]丁鉴海,车时,余素荣,等.地磁日变地震预报方法及其震例研究[M].北京:地震出版社,2009:75-86.
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