| 利用NOAA数据分析地震前总电子含量异常 |
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| 引用本文： | 齐曙光,高彦卿,朱朝霞,郭广猛.利用NOAA数据分析地震前总电子含量异常[J].郑州大学学报(自然科学版),2014(2):64-67. |
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| 作者姓名： | 齐曙光 高彦卿 朱朝霞 郭广猛 |
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| 作者单位： | [1]南阳师范学院自然灾害遥感监测实验室,河南南阳473061 [2]南阳理工学院招生就业处,河南南阳473004 [3]南阳师范学院外语学院,河南南阳473061 |
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| 基金项目： | 国家自然科学基金资助项目,编号41071280;南阳师范学院科研项目,编号QN2013031. |
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| 摘 要： | 利用美国国家海洋和大气管理局（NOAA）发布的电离层总电子含量（TEC）数据,采用从点到面的分析方法,分析了墨西哥2012年3月20日和4月12日两次地震前的TEC数据,发现两次地震前均出现TEC异常,具体表现为：以点计算的震中TEC波形图显示3月20日震前的3月7日、3月15日和3月18日出现TEC异常,4月12日震前的4月4日和4月11日出现TEC异常;以面计算的TEC分布显示震中周边区域在震前出现异于其他地区的TEC增大或减少.
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| 关 键 词： | 总电子含量 异常 地震 墨西哥 |
Analysis of Preseismic Anomalies of the Total Electron Content Based on NOAA Data |
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| QI Shu-guang,GAO Yan-qing,ZHU Zhao-xia,GUO Guang-meng.Analysis of Preseismic Anomalies of the Total Electron Content Based on NOAA Data[J].Journal of Zhengzhou University (Natural Science),2014(2):64-67. |
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| Authors: | QI Shu-guang GAO Yan-qing ZHU Zhao-xia GUO Guang-meng |
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| Institution: | 1.Laboratory of Natural Disaster Remote-sensing Monitoring,Nanyang Normal University,Nanyang 473061,China; 2.Enrollment and Employment Office,Nanyang Institute of Science and Technology,Nanyang 473004,China; 3.College of Foreign Languages,Nanyang Normal University,Nanyang 473061,China) |
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| Abstract: | Based on the data of total electron content （TEC） in the ionosphere released by NOAA,TEC before Mexico＇s two earthquakes,respectively on March 20th and April 12th,2012,was analyzed by using the point to surface method.The findings confirmed that preseismic anomalies of TEC existed and were manifested as：point-calculated epicenter TEC oscillogram showed TEC on March 7th,15th and 18th,before the March 20th earthquake were abnormal,and TEC on April 4th and 11th,before the April 12th earthquake were abnormal.Area-calculated TEC distribution indicated TEC of epicenter＇s neighboring areas inereased or deereased conspicuously comparing with other areas before the earthquake. |
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| Keywords: | total electron content （TEC） anomaly earthquake Mexico |
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