汶川地震前电离层NmF2异常扰动
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摘要
利用COSMIC电离层掩星数据,对2008年5月12日汶川Ms8.0地震震中区上空4月至5月末的电离层F2层最大电子密度NmF2进行了时间序列分析,发现在4月震中区上空电离层F2层峰值电子密度NmF2没有明显异常变化,而在震前一周内多次出现明显负异常,排除其他因素,认为这些异常极有可能是由地震引起的。
The Ms 8.0 earthquake occurred in Wenchuan of Sichuan province on May.12,2008.On the base of the ionospheric occultation data from COSMIC system,we analyzed the max electronic density of ionospheric F2 layer(NmF2)over seismic preparation zone from April to the end of May.It was found that NmF2 was calm during April,but there was evidently negative anomaly during the 7 days around earthquake occurring.Having eliminated other factors,we think that these anomalies were probably caused by the generation of earthquake.
The Ms 8.0 earthquake occurred in Wenchuan of Sichuan province on May.12,2008.On the base of the ionospheric occultation data from COSMIC system,we analyzed the max electronic density of ionospheric F2 layer(NmF2)over seismic preparation zone from April to the end of May.It was found that NmF2 was calm during April,but there was evidently negative anomaly during the 7 days around earthquake occurring.Having eliminated other factors,we think that these anomalies were probably caused by the generation of earthquake.
引文
1Davies K and Baker D M.Ionospheric effects observed a-round the time of the Alaskanearthquake of March28,1964[J].Geophys.Res,1965,70:2251-2253.
2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):119-126.2Du Pinren,Jiang Herong and Guo Jianshan.Research on possibility of ionospheric anomalies as an earthquake precur-sor[J].Earthquake,1998,18(2):119-126.(in Chi-nese)
3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):536-542.3Ding Jianhai,Suo Yucheng and Yu Surong.Phenomena of geomagnetic and ionospheric anomalies and their relation to earthquakes[J].Chin.J.Space Sci.,2005,25(6):536-542.(in Chinese)
4吴云,乔学军,周义炎.利用地基GPS探测震前电离层TEC异常[J].大地测量与地球动学,2005,25(2):36-40.4Wu Yun,Qiao Xuejun and Zhou Yiyan.Preseismic iono-spheric TEC anomaly detected by ground-based GPS[J].Journal of Geodesy and Geodynamics,2005,25(2):36-40.(in Chinese)
5卓裕荣.电离层地震前兆之研究[D].台湾:国立中央大学太空研究所,2002.5Chuo Y J.A study of seismo-ionospheric precursor[D].Taiwan:NCU Institute of Space Science,2002.
6Liu J Y,et al.Seismo-ionospheric signatures prior toM8greater then or equal to6:0Taiwan earthquakes[J].Geo-physical Research Letters,2000,27(19):3113-3116.
7Liu J Y,Chou Y J and Chen Y I.Ionospheric GPS TEC per-turbations prior to the20September1999,Chi-Chi earth-quake[J].Geophys.Res.Lett.,2001,7,1383-1386.
8Liu J Y,et al.Pre-earthquake ionospheric anomalies regis-tered by continuous GPS TEC measurements[J].Annales Geophysicae,2004,22:1585-1593.
9林玉翔.利用全球定位系统观测电离层地震前兆[D].台湾:国立中央大学太空研究所,2004.9Lin Y H.Monitoring seismo-ionospheric preuror ssing the Global Positioning[D].Taiwan:NCUInstitute of Space Sci-ence,2004.
10吴云,等.GPS应用的新拓展[J].国际地震动态,2007,7:16-25.10Wu Yun,et al.New application of GPS[J].Recent De-velopments in World Seismology,2007,7:16-25.(in Chinese)
11周义炎,等.GPS掩星技术和电离层反演[J].大地测量与地球动力学,2005,25(2):29-35.11Zhou Yiyan,et al.GPS occultation technique and iono-spheric inversion[J].Journal Of Geodesy And Geodynam-ics,2005,25(2):29-35.(in Chinese)
12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,2008,28(1):16-22.12Yang Jian,Wu Yun and Zhou Yiyan.Research on seismo-i-onospheric anomalies using GPS radio occultation data[J]Journal of Geodesy and Geodynamics,2008,28(1):16-22.(in Chinese)
13Hajj G Aand Romans I J.Ionospheric electron density pro-files obtained with the Global Positioning System:Results from the GPS/METexperiment[J].Radio Sei.,1998,33(1):175-190.
14Rius A,Ruffini G and Romeo A.Analysis of ionospheric electron density distribution from GPS/MET ocucultations[J].IEEEETrans.Geoscience and Remote sensing,1998,36:383-394.
15张训械,等.奥斯特/GPS掩星和地面雷达联合观测电离层电子密度初步结果[J].全球定位系统,2000,25:1-5.15Zhang X J,et al.Preliminary results of ionospheric elec-tron density obtained from Oersted/GPS occultation and grouded radar joint observation[J].Chinese Global Positio-ning System,2000,25:1-5.
16Tsai L C,et al.Comparisons of GPS/MET retrieved iono-spheric electron density and ground based ionosonde data[J].Earth Planets Space,2001,53:193-205.
17Rocken C,et al.Analysis and validation of GPS/METdata in the neutral atmosphere[J].J.Geophys.Res.,1997,102:29849-29866.
18Kursinski E R,et al.Observing Earth’s atmosphere with radio occultation measurements[J].J.Geophys.Res.,1997,102:23429-23465.
19曾桢,等.电离层GPS掩星观测反演技术[J].地球物理学报,2004,47(4):578-583.19Zeng Zhen,et al.Inversion of ionospheric GPS occultation date[J].Chinese Journal of Geophysics,2004,47(4):578-583.(in Chinese)
20郭鹏,洪振杰,张大海.COSMIC计划[J].天文学进展,2002,20(4):325-336.20Guo Peng,Hong Zhenjie and Zhang Dahai.COSMIC pro-ject[J].Progress in Astronomy,2002,20(4):325-336.
2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):119-126.2Du Pinren,Jiang Herong and Guo Jianshan.Research on possibility of ionospheric anomalies as an earthquake precur-sor[J].Earthquake,1998,18(2):119-126.(in Chi-nese)
3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):536-542.3Ding Jianhai,Suo Yucheng and Yu Surong.Phenomena of geomagnetic and ionospheric anomalies and their relation to earthquakes[J].Chin.J.Space Sci.,2005,25(6):536-542.(in Chinese)
4吴云,乔学军,周义炎.利用地基GPS探测震前电离层TEC异常[J].大地测量与地球动学,2005,25(2):36-40.4Wu Yun,Qiao Xuejun and Zhou Yiyan.Preseismic iono-spheric TEC anomaly detected by ground-based GPS[J].Journal of Geodesy and Geodynamics,2005,25(2):36-40.(in Chinese)
5卓裕荣.电离层地震前兆之研究[D].台湾:国立中央大学太空研究所,2002.5Chuo Y J.A study of seismo-ionospheric precursor[D].Taiwan:NCU Institute of Space Science,2002.
6Liu J Y,et al.Seismo-ionospheric signatures prior toM8greater then or equal to6:0Taiwan earthquakes[J].Geo-physical Research Letters,2000,27(19):3113-3116.
7Liu J Y,Chou Y J and Chen Y I.Ionospheric GPS TEC per-turbations prior to the20September1999,Chi-Chi earth-quake[J].Geophys.Res.Lett.,2001,7,1383-1386.
8Liu J Y,et al.Pre-earthquake ionospheric anomalies regis-tered by continuous GPS TEC measurements[J].Annales Geophysicae,2004,22:1585-1593.
9林玉翔.利用全球定位系统观测电离层地震前兆[D].台湾:国立中央大学太空研究所,2004.9Lin Y H.Monitoring seismo-ionospheric preuror ssing the Global Positioning[D].Taiwan:NCUInstitute of Space Sci-ence,2004.
10吴云,等.GPS应用的新拓展[J].国际地震动态,2007,7:16-25.10Wu Yun,et al.New application of GPS[J].Recent De-velopments in World Seismology,2007,7:16-25.(in Chinese)
11周义炎,等.GPS掩星技术和电离层反演[J].大地测量与地球动力学,2005,25(2):29-35.11Zhou Yiyan,et al.GPS occultation technique and iono-spheric inversion[J].Journal Of Geodesy And Geodynam-ics,2005,25(2):29-35.(in Chinese)
12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,2008,28(1):16-22.12Yang Jian,Wu Yun and Zhou Yiyan.Research on seismo-i-onospheric anomalies using GPS radio occultation data[J]Journal of Geodesy and Geodynamics,2008,28(1):16-22.(in Chinese)
13Hajj G Aand Romans I J.Ionospheric electron density pro-files obtained with the Global Positioning System:Results from the GPS/METexperiment[J].Radio Sei.,1998,33(1):175-190.
14Rius A,Ruffini G and Romeo A.Analysis of ionospheric electron density distribution from GPS/MET ocucultations[J].IEEEETrans.Geoscience and Remote sensing,1998,36:383-394.
15张训械,等.奥斯特/GPS掩星和地面雷达联合观测电离层电子密度初步结果[J].全球定位系统,2000,25:1-5.15Zhang X J,et al.Preliminary results of ionospheric elec-tron density obtained from Oersted/GPS occultation and grouded radar joint observation[J].Chinese Global Positio-ning System,2000,25:1-5.
16Tsai L C,et al.Comparisons of GPS/MET retrieved iono-spheric electron density and ground based ionosonde data[J].Earth Planets Space,2001,53:193-205.
17Rocken C,et al.Analysis and validation of GPS/METdata in the neutral atmosphere[J].J.Geophys.Res.,1997,102:29849-29866.
18Kursinski E R,et al.Observing Earth’s atmosphere with radio occultation measurements[J].J.Geophys.Res.,1997,102:23429-23465.
19曾桢,等.电离层GPS掩星观测反演技术[J].地球物理学报,2004,47(4):578-583.19Zeng Zhen,et al.Inversion of ionospheric GPS occultation date[J].Chinese Journal of Geophysics,2004,47(4):578-583.(in Chinese)
20郭鹏,洪振杰,张大海.COSMIC计划[J].天文学进展,2002,20(4):325-336.20Guo Peng,Hong Zhenjie and Zhang Dahai.COSMIC pro-ject[J].Progress in Astronomy,2002,20(4):325-336.
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