ANOMALY DETECTION ABOUT IONOSPHERIC ELECTRON DENSITY
ON SUMATRA EARTHQUAKE IN APRIL 2012
1)Department of Surveying Engineering and Geoinformatics,Central South University, Changsha 410083
2)Institute of Remote Sensing and Digital Earth,Chinese Academy of Science,Beijing 100094
Abstract：Using the technology of ionospheric tomography, threedimensional ionospheric electronic density maps from April 1st to 15th in 2012 were reconstructed near the epicenter of Sumatra, The electron density anomaly detection is based on the doubled standard deviation. After excluding the solar activity and geomagnetic disturbance, the abnormal ionospheric electron density happened at the UT 10:00 on 11th, UT 6:00 on 13th, UT 6:0014:00 on 14th, UT 14:0016：00 on 15th, and they distributed mainly near the epicenter. The anomalies are likely a premise of the Sumatra earthquake in April.
Liu Ying,Dai Wujiao,Zhang Wenyi et al. ANOMALY DETECTION ABOUT IONOSPHERIC ELECTRON DENSITY
ON SUMATRA EARTHQUAKE IN APRIL 2012[J]. jgg, 2013, 33(3): 30-33.
