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Authors: Cianchini, G.*
De Santis, A.*
Balasis, G.*
Mandea, M.*
Qamili, E.*
Title: Searching for possible seismogenic signatures in ionosphere by an entropy-based analysis of magnetic satellite data: A case study.
Editors: Friis-Christensen, Eigil; DTU Space, Copenhagen, Denmark
Lühr, Hermann; GFZ German Research Centre for Geosciences, Potsdam, Germany
Hulot, Gauthier; IPGP, Paris, France
Haagmans, Roger; ESA, ESTEC, Noordwijk, The Netherlands
Issue Date: 26-Jun-2009
Keywords: Magnetic Field
Satellite Data
Information Theory
Large Earthquake
Abstract: The importance of detecting possible electromagnetic signatures due to large earthquakes is self-evident, signatures which can be either anticipating, simultaneous or subsequent with respect to the main shock. Taking advantage of the present low Earth’s orbiting CHAMP satellite, we apply an “ad hoc” technique based on the Information Theory, to the satellite magnetic data with the aim at extracting eventual time anomalies. This technique has small time-space resolution using a preliminary wavelet analysis in order to detect shorter-wavelength anomalies. Some examples are given for magnetic satellite data taken over periods including the times of two large earthquakes, one being the Sumatra region event on 26 December 2004 (M=9.1).
Appears in Collections:05.01.01. Data processing
Conference materials
05.05.99. General or miscellaneous
04.02.07. Instruments and techniques

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