缅甸Ms7.2地震前电离层TEC的异常变化
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摘要
基于IGS提供的电离层TEC资料和中国地壳运动观测网络提供的GPS资料解算的单站VTEC数据,采用滑动平均处理方法,对2011年3月24日缅甸7.2级地震震前的电离层TEC资料进行了处理和分析,结果表明:在震前6～8天,出现电离层TEC异常减小现象,震前3天出现电离层TEC异常增加现象,排除太阳活动和地磁扰动的影响后,3月16日、17日和18日出现的电离层TEC异常减小,特别是在18日出现的异常减小及呈现出的共轭结构,可能与缅甸7.2级地震有关。
On the basis of the Total Electron Content(TEC) obtained from International GNSS Service(IGS) and the VTEC derived from the GPS observation data from the reference stations of Crustal Movement Observational Network of China and using the method of moving average,we have processed and analyzed the ionospheric TEC prior to the Myanmar Ms7.2 earthquake. The results show that the anomalous reduction of TEC occurred on 6-8 day prior to the earthquake and the anomalous increase of TEC occurred on the 3rd day prior to the earthquake may be related to the geomanetic disturbance on Mar.21.Due to the time is close to the occuring moment of the event,it can be concluded that the observed anomalous reduction of ionospheric TEC on Mar.16,17 and 18 and the conjugated structure of the anomalous reduction on Mar.18 is possibly related to the earthquake excluding the effect of solar activity and geomagnetic disturbance.
On the basis of the Total Electron Content(TEC) obtained from International GNSS Service(IGS) and the VTEC derived from the GPS observation data from the reference stations of Crustal Movement Observational Network of China and using the method of moving average,we have processed and analyzed the ionospheric TEC prior to the Myanmar Ms7.2 earthquake. The results show that the anomalous reduction of TEC occurred on 6-8 day prior to the earthquake and the anomalous increase of TEC occurred on the 3rd day prior to the earthquake may be related to the geomanetic disturbance on Mar.21.Due to the time is close to the occuring moment of the event,it can be concluded that the observed anomalous reduction of ionospheric TEC on Mar.16,17 and 18 and the conjugated structure of the anomalous reduction on Mar.18 is possibly related to the earthquake excluding the effect of solar activity and geomagnetic disturbance.
引文
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2 Calais E M.GPS detection of ionospheric VTEC perturba-tions following the January 17,1994,Northirdge Earthquake[J].Geophys Res Lett.,1995,22:1 045-1 048.
3 Zaslavski Y,Parrot M and Blance E.Analysis of VTEC meas-urements above active seismic regions[J].Phys Earth Planet Int.,1998,105:219-228.
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7 Liu J Y,et al.Seismo-ionospheric signatures prior to M≥6.0 Taiwan earthquakes[J].Geophysic Research Letters,2000,27(19):3 113-3 116.
8 Silina A S,et al.Seismo-ionospheric phenomena before strong earthquakes[J].Natural Hazards and Earth System Science,2001,1:113-118.
9 Chuo Y J,et al.The anomalies in the f0 Es prior to Ms6.0 Taiwan earthquakes[A].SeismoElectromagnetic:Litho-sphere-atmosphere-ionosphere coupling[C].Terrapub,2002,309-312.
10 Pulinets S A,et al.Main phenomenological features of ion-ospheric precursors of strong earthquakes[J].Journal of Atmospheric and Solar-Terrestrial Physics,2003,65:1 337–1 347.
11 Pulinets S A.Ionospheric precursors of earthquakes;recent advances in theory and practical applications[J].TAO,2004,15(3):413-415.
12 Liu J Y,et al.Pre-earthquake ionospheric anomalies reg-istered by continuous GPS TEC measurements[J].Annales Geophysicae,2004,22:1 585-1 593.
13 Sorokina V M,Chmyrevb V M and Yaschenko A K.Theo-retical model of DC electric field formation in the iono-sphere stimulated by seismic activity[J].Journal of Atmos-pheric and Solar-Terrestrial Physics,2005,67:1 259-1 268.
14丁鉴海,索玉成,余素荣.地磁场与电离层异常现象及其与地震的关系[J].空间科学学报,2005,25(6):536-542.(Ding Jianhai,Suo Yucheng and Yu Surong.Phenom-ena of geomagnetic and ionospheric anomalies and their re-lation to earthquakes[J].Chin J Space Sci.,2005,25(6):536-542)
15卓裕荣.电离层地震前兆之研究[D].国立中央大学太空科学研究所,2002,31-33.(Chuo Yurong.A study of seismo-ionospheric precursor[D].NCU Institute of Space Science,2002,31-33)
16吴云,乔学军,周义炎.利用地基GPS探测震前电离层TEC异常[J].大地测量与地球动力学,2005,(2):36-40.(Wu Yun,Qiao Xuejun and Zhou Yiyan.Preseismic i-onospheric TEC anomaly detected by ground-based GPS[J].Journal of Geodesy and Geodynamics,2005,(2):36-40)
17杨剑,吴云,周义炎.利用GPS无线电掩星数据研究震前电离层异常[J].大地测量与地球动力学,2008,(1):16-22.(Yang Jian,Wu Yun and Zhou Yiyan.Research on seismo-ionospheric anomalies using GPS radio occulta-tion data[J].Journal Of Geodesy And Geodynamics,2008,(2):16-22)
18 Zhu Fuying and Wu Yun.Anomalous variations TEC prior to the 2011 Japan Ms9.0 earthquake[J].Geodesy and Ge-odynamics,2011,2(3):8-11.
19祝芙英,等.汶川地震前电离层VTEC的异常响应[J].地震学报,2009,31(2):180-187.(Zhu Fuying,et al.Anomalous response of ionospheric VTEC before the Wen-chuan earthquake[J].Acta Seismologica Sina,2009,31(2):180-187)
20林剑,等.基于地基GPS资料探测汶川地震电离层TEC的异常[J].地球物理学报,2009,52(1):297-300.(Lin Jian,et al.Wenchuan earthquake lonospheric TEC anomly detected by GPS[J].Chinese J Geophys.,2009,52(1):297-300)
21赵必强,等.震前电离层扰动研究进展及汶川地震前电离层变化[J].科技导报,2008,26(11):30-33.(Zhao Biqiang,et al.Recent advances on the ionospheric pre-cur-sors of earthquakes and ionospheric variations prior to Wen-chuan earthquake[J].Science and Technology Review,2008,26(11):30-33)
22 Zhou Yiyan,et al.Ionospheric anomalies detected by ground-based GPS before the Mw7.9 Wenchuan earthquake,China[J].Journal of Atmospheric and Solar-Terrestrial physics,2009,71:959–966.
23 Yu Tao,et al.Study of the ionospheric anomaly before the Wenchuan earthquake[J].Chinese Science Bulletin,2009,54(6):1080-1086.
24 Yuan Y B and Ou J K.Preliminary results and analyses of using IGS GPS data to determine global ionospheric TEC[J].Progress in Natural Science,2003,13(8):446.
2 Calais E M.GPS detection of ionospheric VTEC perturba-tions following the January 17,1994,Northirdge Earthquake[J].Geophys Res Lett.,1995,22:1 045-1 048.
3 Zaslavski Y,Parrot M and Blance E.Analysis of VTEC meas-urements above active seismic regions[J].Phys Earth Planet Int.,1998,105:219-228.
4 Pulinets S A.Strong earthquakes prediction possibility with the help of topside sounding from satellites[J].Advances in Space Research,1998,21(3):455-458.
5杜品仁,蒋和荣,郭兼善.电离层异常能否作为地震前兆的研究[J].地震,1998,18(2):119-126.(Du Pinren,Jiang Herong and Guo Jianshan.Research on possibility of iononspheric anomalies as an earthquake pre-cursors[J].Earthquake,1998,18(2):119-126)
6 Kim V P and Hegai V V.A possible presage of strong earth-quake in the night-time mid-latitude region ionosphere[A].Atmospheric and ionospheric electromagnetic phenomena as-sociated with earthquakes[C].Tokyo:Terra Scientific Pub-lishing Company,1999:619-627.
7 Liu J Y,et al.Seismo-ionospheric signatures prior to M≥6.0 Taiwan earthquakes[J].Geophysic Research Letters,2000,27(19):3 113-3 116.
8 Silina A S,et al.Seismo-ionospheric phenomena before strong earthquakes[J].Natural Hazards and Earth System Science,2001,1:113-118.
9 Chuo Y J,et al.The anomalies in the f0 Es prior to Ms6.0 Taiwan earthquakes[A].SeismoElectromagnetic:Litho-sphere-atmosphere-ionosphere coupling[C].Terrapub,2002,309-312.
10 Pulinets S A,et al.Main phenomenological features of ion-ospheric precursors of strong earthquakes[J].Journal of Atmospheric and Solar-Terrestrial Physics,2003,65:1 337–1 347.
11 Pulinets S A.Ionospheric precursors of earthquakes;recent advances in theory and practical applications[J].TAO,2004,15(3):413-415.
12 Liu J Y,et al.Pre-earthquake ionospheric anomalies reg-istered by continuous GPS TEC measurements[J].Annales Geophysicae,2004,22:1 585-1 593.
13 Sorokina V M,Chmyrevb V M and Yaschenko A K.Theo-retical model of DC electric field formation in the iono-sphere stimulated by seismic activity[J].Journal of Atmos-pheric and Solar-Terrestrial Physics,2005,67:1 259-1 268.
14丁鉴海,索玉成,余素荣.地磁场与电离层异常现象及其与地震的关系[J].空间科学学报,2005,25(6):536-542.(Ding Jianhai,Suo Yucheng and Yu Surong.Phenom-ena of geomagnetic and ionospheric anomalies and their re-lation to earthquakes[J].Chin J Space Sci.,2005,25(6):536-542)
15卓裕荣.电离层地震前兆之研究[D].国立中央大学太空科学研究所,2002,31-33.(Chuo Yurong.A study of seismo-ionospheric precursor[D].NCU Institute of Space Science,2002,31-33)
16吴云,乔学军,周义炎.利用地基GPS探测震前电离层TEC异常[J].大地测量与地球动力学,2005,(2):36-40.(Wu Yun,Qiao Xuejun and Zhou Yiyan.Preseismic i-onospheric TEC anomaly detected by ground-based GPS[J].Journal of Geodesy and Geodynamics,2005,(2):36-40)
17杨剑,吴云,周义炎.利用GPS无线电掩星数据研究震前电离层异常[J].大地测量与地球动力学,2008,(1):16-22.(Yang Jian,Wu Yun and Zhou Yiyan.Research on seismo-ionospheric anomalies using GPS radio occulta-tion data[J].Journal Of Geodesy And Geodynamics,2008,(2):16-22)
18 Zhu Fuying and Wu Yun.Anomalous variations TEC prior to the 2011 Japan Ms9.0 earthquake[J].Geodesy and Ge-odynamics,2011,2(3):8-11.
19祝芙英,等.汶川地震前电离层VTEC的异常响应[J].地震学报,2009,31(2):180-187.(Zhu Fuying,et al.Anomalous response of ionospheric VTEC before the Wen-chuan earthquake[J].Acta Seismologica Sina,2009,31(2):180-187)
20林剑,等.基于地基GPS资料探测汶川地震电离层TEC的异常[J].地球物理学报,2009,52(1):297-300.(Lin Jian,et al.Wenchuan earthquake lonospheric TEC anomly detected by GPS[J].Chinese J Geophys.,2009,52(1):297-300)
21赵必强,等.震前电离层扰动研究进展及汶川地震前电离层变化[J].科技导报,2008,26(11):30-33.(Zhao Biqiang,et al.Recent advances on the ionospheric pre-cur-sors of earthquakes and ionospheric variations prior to Wen-chuan earthquake[J].Science and Technology Review,2008,26(11):30-33)
22 Zhou Yiyan,et al.Ionospheric anomalies detected by ground-based GPS before the Mw7.9 Wenchuan earthquake,China[J].Journal of Atmospheric and Solar-Terrestrial physics,2009,71:959–966.
23 Yu Tao,et al.Study of the ionospheric anomaly before the Wenchuan earthquake[J].Chinese Science Bulletin,2009,54(6):1080-1086.
24 Yuan Y B and Ou J K.Preliminary results and analyses of using IGS GPS data to determine global ionospheric TEC[J].Progress in Natural Science,2003,13(8):446.
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