2009年6至7月华南地区电离层TEC扰动研究
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摘要
电离层TEC(Total Electron Content)扰动与多种扰动源相关联.2009年6至7月期间存在地震和日全食的扰动源.利用广州地区GPS监测网在2009年6至7月连续监测到的TEC数据,通过采用前15天数据的滑动窗口对数据进行处理,从时间序列和空间分布两方面分析了华南地区电离层TEC扰动特征.结果显示,2009年6至7月华南地区电离层TEC扰动和该时期发生的地震以及日全食事件可能有关联;2009年7月多个地震发生引起的电离层扰动特征为,震前出现的是正异常,发震当天或震后有可能是正异常,也有可能是负异常;7月22日日全食当天TEC扰动为正异常,推测该正异常是地磁活动、地震活动及日全食综合效应的结果.
There are many origins of ionospheric TEC(Total Electron Content) disturbances during June-July 2009,including several earthquakes and a total solar eclipse.In current study,using the GPS-TEC date observed during June-July 2009 in Guangzhou GPS station and processed by a sliding window with the data of prior 15 days,the characters of South China ionosphere are investigated in spatial and temporal distribution.The results indicate that there are possible relations between the South China ionospheric TEC disturbances and seismic-activities as well as total solar eclipse during June-July 2009.The characters of ionospheric TEC disturbance induced by several earthquakes are commented as follows:positive values before earthquake,positive values or negative values near and after the occurrence of earthquake,even more,that the positive values on the day of total solar eclipse(22 July 2009) may be accounted for magnetic activities,seismic activities and total solar eclipse.
There are many origins of ionospheric TEC(Total Electron Content) disturbances during June-July 2009,including several earthquakes and a total solar eclipse.In current study,using the GPS-TEC date observed during June-July 2009 in Guangzhou GPS station and processed by a sliding window with the data of prior 15 days,the characters of South China ionosphere are investigated in spatial and temporal distribution.The results indicate that there are possible relations between the South China ionospheric TEC disturbances and seismic-activities as well as total solar eclipse during June-July 2009.The characters of ionospheric TEC disturbance induced by several earthquakes are commented as follows:positive values before earthquake,positive values or negative values near and after the occurrence of earthquake,even more,that the positive values on the day of total solar eclipse(22 July 2009) may be accounted for magnetic activities,seismic activities and total solar eclipse.
引文
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[10]Li Libin,Wang Weixing,Wu Zhenhua,Ning Baiqi,Li Jun.Ionospheric disturbances during the annular Eclipse of September 23,1987[J].Chin.J.Geophys.,1990. 33(4):384-390.In Chinese(李利斌,万卫星,吴振华,宁百齐,李均.1987年9月23日日环食引起的电离层扰动[J].地球物理学报.1990.33(4):384-390)
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[12]Liu J Y,Chen Y I,Pulinets S A,Tsai Y B,Chuo Y J. Seismo-ionospheric signatures prior to M6.0 Taiwan earthquakes [J].Geophys.Res.Lett,2000,27(19):3113-3116
[13]Liu J Y,Chen Y I,Chuo Y J,Tsai H F.Variations of ionospheric total electron content during the Chi-Chi earthquake [J].Geophys.Res.Lett,2001,28(7):1383-1386
[14]Yang M L,Deng B C,Zhao Wenhua,et al.Study on abnormal characteristics of ionospheric TEC above South-China responding to two strong earthquakes[J].J.Geod. Geodyn.2009,29(6):13-21.In Chinese(杨马陵,邓柏昌,赵文化,等.两次强震前华南地区电离层TEC异常特征研究[J]. 大地测量与地球动力学.2009,29(6):13-21)
[15]Dobrovolsky I P,Zubkov S I,Miachkin V I.Estimation of the size of earthquake preparation zones[J],Pure Apply Geophys.,1979,117:1025-1044
[16]Liu J Y,Chuo Y J,Shan S J,Tsai Y B,Chen Y I,Pulinets S A,Yu S B.Pre-earthquake ionospheric anomalies registered by continuous GPS TEC measurements[J].Ann. Geophys.,2004,22:1585-1593
[17]Pulinets S A,Ouzounov D,Ciraolo L,et al.Thermal,atmospheric and ionospheric anomalies around the time of the Colima M7.8 earthquake of 21 January,2003[J].Ann. Geophys.,2006,24:835-849
[18]Alina Marie Hasbi,Mohammed Awad Momani,Mohd Alauddin Mohd Ali,et al.Ionospheric and geomagnetic disturbances during the 2005 Sumatran earthquakes[J].J. Atmos.Solar-Terr.Phys.,2009,71:1992-2005
[19]Ding Zonghua,Sun Shuji,Chen Chun,Li Na,Xu Zhengwen. Variations of Ionospheric Parameters During the Total Solar Eclipse on 22 July 2009[J].Chin.J.Space Sci.,2011,31(2):187-193.In Chinese(丁宗华,孙树计,陈春,李娜,许正文.2009年7月22日日全食期间电离层参量的变化[J].空间科学学报,2011,31(2):187-193)
[20]He Youwen,Long Qili.The ionospheric effects of the solar Eclipse[J].Chin.J.Geophys.,1990,33(4):373-383.In Chinese(何友文,龙其利.日食电离层效应[J].地球物理学报, 1990,33(4):373-383)
[2]Bolt B A.Seismic air waves from the great 1964 Alaska earthquake[J].Nature,1964,202:1095-1096
[3]Davies K,Baker D.Ionospheric effects observed around the time of the Alaskan earthquake of March 28,1964[J]. J.Geophys.Res.,1965,70:1251-1253
[4]Pulinets S A,Boyarchuk K.Ionospheric Precursors of Earthquakes[M].2004,Berlin:Springer.315
[5]Zakharenkova I E,Shagimuratov I I,Tepenitzina N Yu, Krankowski A.Anomalous modification of the ionospheric total electron content prior to the 26 September,2005 Peru earthquake[J].J.Atmos.Solar-Terr.Phys.,2008, 70:1919-1928
[6]Yu Tao,Mao Tian,et al.Study of the ionospheric anomaly before the Wenchuan earthquake[J].Chin.Sci. Bull.,2009,54(6):1086-1092.In Chinese(余涛,毛田等汶川特大地震前电离层主要参量变化[J].科学通报,2009, 54(6):1086-1092)
[7]Zhou Y Y,Wu Y,et al.Ionospheric anomalies detected by ground-based GPS before the Mw7.9 Wenchuan earthquake of May 12,2008 China[J].J.Atmos.Solar-Terr. Phys.,2009,71:959-966
[8]Ondoh T.Seismo-Ionospheric Phenomena[J].Adv.Space Res.,2000,26(8):1267-1272
[9]Pulinets S A,Gaivoronska T B,Contreras L A,Ciraolo I. Correlation analysis technique revealing ionospheric precusors of earthquake[J].Nat.Hazards Earth Sys.Sci., 2004,4:697-702
[10]Li Libin,Wang Weixing,Wu Zhenhua,Ning Baiqi,Li Jun.Ionospheric disturbances during the annular Eclipse of September 23,1987[J].Chin.J.Geophys.,1990. 33(4):384-390.In Chinese(李利斌,万卫星,吴振华,宁百齐,李均.1987年9月23日日环食引起的电离层扰动[J].地球物理学报.1990.33(4):384-390)
[11]Devi M,Barbara A K,Depueva A.Association of Total Electron Content(TEC) and f_0F_2 variations with earthquake events at the anomaly crest region[J],2004,Ann. Geophys.,47(1):83-91
[12]Liu J Y,Chen Y I,Pulinets S A,Tsai Y B,Chuo Y J. Seismo-ionospheric signatures prior to M6.0 Taiwan earthquakes [J].Geophys.Res.Lett,2000,27(19):3113-3116
[13]Liu J Y,Chen Y I,Chuo Y J,Tsai H F.Variations of ionospheric total electron content during the Chi-Chi earthquake [J].Geophys.Res.Lett,2001,28(7):1383-1386
[14]Yang M L,Deng B C,Zhao Wenhua,et al.Study on abnormal characteristics of ionospheric TEC above South-China responding to two strong earthquakes[J].J.Geod. Geodyn.2009,29(6):13-21.In Chinese(杨马陵,邓柏昌,赵文化,等.两次强震前华南地区电离层TEC异常特征研究[J]. 大地测量与地球动力学.2009,29(6):13-21)
[15]Dobrovolsky I P,Zubkov S I,Miachkin V I.Estimation of the size of earthquake preparation zones[J],Pure Apply Geophys.,1979,117:1025-1044
[16]Liu J Y,Chuo Y J,Shan S J,Tsai Y B,Chen Y I,Pulinets S A,Yu S B.Pre-earthquake ionospheric anomalies registered by continuous GPS TEC measurements[J].Ann. Geophys.,2004,22:1585-1593
[17]Pulinets S A,Ouzounov D,Ciraolo L,et al.Thermal,atmospheric and ionospheric anomalies around the time of the Colima M7.8 earthquake of 21 January,2003[J].Ann. Geophys.,2006,24:835-849
[18]Alina Marie Hasbi,Mohammed Awad Momani,Mohd Alauddin Mohd Ali,et al.Ionospheric and geomagnetic disturbances during the 2005 Sumatran earthquakes[J].J. Atmos.Solar-Terr.Phys.,2009,71:1992-2005
[19]Ding Zonghua,Sun Shuji,Chen Chun,Li Na,Xu Zhengwen. Variations of Ionospheric Parameters During the Total Solar Eclipse on 22 July 2009[J].Chin.J.Space Sci.,2011,31(2):187-193.In Chinese(丁宗华,孙树计,陈春,李娜,许正文.2009年7月22日日全食期间电离层参量的变化[J].空间科学学报,2011,31(2):187-193)
[20]He Youwen,Long Qili.The ionospheric effects of the solar Eclipse[J].Chin.J.Geophys.,1990,33(4):373-383.In Chinese(何友文,龙其利.日食电离层效应[J].地球物理学报, 1990,33(4):373-383)
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