Informational analysis of apparent Earth's resistivity time series to assess the reliability of magnetotelluric measurements

NCUIR > College of Earth Sciences > Department of Earth Sciences > journal & Dissertation > Item 987654321/103728

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/103728

Title:	Informational analysis of apparent Earth's resistivity time series to assess the reliability of magnetotelluric measurements
Authors:	陳建志;Telesca, Luciano;Lovallo, Michele;Romano, Gerardo;Hsu, Han-Lun;Chiang, Chih-Wen;Chen, Chien-chih
Contributors:	地球科學學院地球科學學系
Keywords:	Fisher Information Measure;Magnetotellurics;Median absolute deviation;Shannon entropy
Date:	2013-11-15
Issue Date:	2026-04-23 11:36:20 (UTC+8)
Publisher:	Elsevier Ltd.;Elsevier Ltd
Abstract:	摘要： •The Fisher–Shannon method is applied to resistivity time series.•The reliability of resistivity estimates is assessed.•Day-time resistivity shows higher level of disorder than night-time.•The informational methods reveal anthropic source in high frequency band. We used the informational methods of the Shannon entropy power and the Fisher Information Measure to analyze the time dynamics of one year of semi-daily values of apparent resistivity, calculated on the base of the magnetotelluric (MT) monitoring at Penghu Island, Taiwan. The performed statistics indicate that the day-time measurements present higher disorder and lower organization than the night-time measurements. Such difference is more evident for the high-frequency band of resistivity data, which suggests that possibly some source of the electromagnetic field could be of anthropic origin. Furthermore, we also note the characteristics of so-called MT dead-band with the periodicity of ∼10 s could be revealed in the high values of Shannon entropy power. 出版者： Elsevier Ltd 出版日期： 2013-11-15 出處： Journal of Asian earth sciences, 2013-11, Vol.77, p.77-82 資源來源： Elsevier ScienceDirect Journals AutoHoldings 版權： 2013 Elsevier Ltd 識別號： ISSN: 1367-9120 識別號： EISSN: 1878-5786 識別號： DOI: 10.1016/j.jseaes.2013.08.010
Appears in Collections:	[Department of Earth Sciences ] journal & Dissertation

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	19	View/Open

社群 sharing

Loading...