{"title":"利用GPS-TEC测量研究2013年4月16日一次地震(M=7.8)的电离层前兆:案例研究","authors":"D. Pundhir, Birbal Singh, O. P. Singh, S. Gupta","doi":"10.4172/2167-0587.1000137","DOIUrl":null,"url":null,"abstract":"In the present paper, we analyze the GPS-TEC data which observed at Agra station, India (27.2o N, 78o E) and also see the diurnal variations of global ionospheric maps (GIMs) TEC data over the epicenter of this earthquake (M=7.8) in Pakistan region for the month of April, 2013. We use a statistical technique for the analysis of data and identify the significant precursors using 3σ criterion. These precursors are found in form of enhancements on different days in the interval of 5-7 days prior to the earthquake. We also see the effect of geomagnetic storm and solar activity on TEC data and found no anomaly associated with them.","PeriodicalId":233291,"journal":{"name":"Journal of Geography & Natural Disasters","volume":"99 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":"{\"title\":\"Study of Ionospheric precursors related to an earthquake (M=7.8) of 16April, 2013 using GPS-TEC measurements: Case study\",\"authors\":\"D. Pundhir, Birbal Singh, O. P. Singh, S. Gupta\",\"doi\":\"10.4172/2167-0587.1000137\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In the present paper, we analyze the GPS-TEC data which observed at Agra station, India (27.2o N, 78o E) and also see the diurnal variations of global ionospheric maps (GIMs) TEC data over the epicenter of this earthquake (M=7.8) in Pakistan region for the month of April, 2013. We use a statistical technique for the analysis of data and identify the significant precursors using 3σ criterion. These precursors are found in form of enhancements on different days in the interval of 5-7 days prior to the earthquake. We also see the effect of geomagnetic storm and solar activity on TEC data and found no anomaly associated with them.\",\"PeriodicalId\":233291,\"journal\":{\"name\":\"Journal of Geography & Natural Disasters\",\"volume\":\"99 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-05-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Geography & Natural Disasters\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4172/2167-0587.1000137\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Geography & Natural Disasters","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4172/2167-0587.1000137","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
摘要
本文分析了印度阿格拉站(27.20 N, 78o E)的GPS-TEC观测资料，以及2013年4月巴基斯坦地区地震(M=7.8)震中的全球电离层地图(GIMs) TEC资料的日变化。我们使用统计技术对数据进行分析，并使用3σ准则识别出显著的前兆。这些前兆在地震前5-7天的不同日子里以增强的形式出现。我们还看到了地磁风暴和太阳活动对TEC数据的影响，并没有发现与它们相关的异常。
Study of Ionospheric precursors related to an earthquake (M=7.8) of 16April, 2013 using GPS-TEC measurements: Case study
In the present paper, we analyze the GPS-TEC data which observed at Agra station, India (27.2o N, 78o E) and also see the diurnal variations of global ionospheric maps (GIMs) TEC data over the epicenter of this earthquake (M=7.8) in Pakistan region for the month of April, 2013. We use a statistical technique for the analysis of data and identify the significant precursors using 3σ criterion. These precursors are found in form of enhancements on different days in the interval of 5-7 days prior to the earthquake. We also see the effect of geomagnetic storm and solar activity on TEC data and found no anomaly associated with them.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
