ANOMALOUS DISTURBANCE OF IONOSPHERIC NmF2DURING WENCHUAN EARTHQUAKE
Xiong Jing 1) ; Wu Yun 1,2) ; Zhu Fuying 1,2) ; Lin Jian 1,2) ; Zhou Yiyan 1,2) ; and Yang Jian 1,2)
1)Institute of Seismology ,CEA ,Wuhan 4300712)Earthquake Administration of Hubei Province, Wuhan 430071
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.
Key words :
earthquake precursor
GPS occultation
ionospheric disturbance
electronic density
seismic surveillance
Received: 01 January 1900
Corresponding Authors:
Xiong Jing
Cite this article:
Xiong Jing ,Wu Yun,Zhu Fuying et al. ANOMALOUS DISTURBANCE OF IONOSPHERIC NmF2DURING WENCHUAN EARTHQUAKE[J]. , 2008, 28(6): 22-26.
Xiong Jing ,Wu Yun,Zhu Fuying et al. ANOMALOUS DISTURBANCE OF IONOSPHERIC NmF2DURING WENCHUAN EARTHQUAKE[J]. jgg, 2008, 28(6): 22-26.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2008/V28/I6/22
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