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| 引用本文： | 熊晶,吴云,祝芙英,林剑,周义炎,杨剑.????????????NmF2?????[J].大地测量与地球动力学,2008,28(6):22-26. |
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| 作者姓名： | 熊晶 吴云 祝芙英 林剑 周义炎 杨剑 |
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| 作者单位： | 1. 中国地震局地震研究所,武汉,430071
2. 中国地震局地震研究所,武汉,430071;湖北省地震局,武汉,430071 |
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| 基金项目： | 国家高技术研究发展计划(863计划)
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国家自然科学基金
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| 摘 要： | ????COSMIC????????????????2008??5??12????Ms8.0?????????????4????5?????????F2???????????NmF2????????????з???????????4???????????????F2???????????NmF2??????????仯???????????????γ?????????????????????????????Щ?????п????????????????
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| 关 键 词： | ??????? GPS???? ???????? ??????? ?????? |
ANOMALOUS DISTURBANCE OF IONOSPHERIC NmF2 DURING WENCHUAN EARTHQUAKE |
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| Xiong Jing,Wu Yun,Zhu Fuying,Lin Jian,Zhou Yiyan,Yang Jian.ANOMALOUS DISTURBANCE OF IONOSPHERIC NmF2 DURING WENCHUAN EARTHQUAKE[J].Journal of Geodesy and Geodynamics,2008,28(6):22-26. |
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| Authors: | Xiong Jing Wu Yun Zhu Fuying Lin Jian Zhou Yiyan Yang Jian |
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| Institution: | 1)Institute of Seismology ,CEA ,Wuhan 4300712)Earthquake Administration of Hubei Province, Wuhan 430071 |
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| Abstract: | 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. |
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| Keywords: | earthquake precursor GPS occultation ionospheric disturbance electronic density seismic surveillance |
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