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1. Application of ensemble empirical mode decomposition for analyzing geoelectric field during storm time | |||
LIU Jin,SUN Weihuai,LIU Lu | |||
Earth Science 15 August 2013 | |||
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Abstract:In this paper, we preliminarily apply the Ensemble Empirical Mode Decomposition (EEMD) technique for decomposing geomagnetic signals in July, 2012, for extracting the major storm-time fluctuations as a combining of intrinsic oscillatory modes (IMFs). By estimating the induced geoelectric field by PWM method, it is comfirmed that the high-frequency (0.01-1Hz) geomagnetic variation play a main role in inducing geoelectric field on the earth surface. The results indicates that the combination of EEMD and Hilbert-Transform is indeed an efficient method for analyzing the multi-scale features of geomagnetic storm-time disturbance. | |||
TO cite this article:LIU Jin,SUN Weihuai,LIU Lu. Application of ensemble empirical mode decomposition for analyzing geoelectric field during storm time[OL].[15 August 2013] http://en.paper.edu.cn/en_releasepaper/content/4554903 |
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