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Standardised Radon Index (Sri): a Normalisation of Radon Data-sets in Terms of Standard Normal Variables : Volume 11, Issue 7 (05/07/2011)

By Crockett, R. G. M.

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Book Id: WPLBN0004017587
Format Type: PDF Article :
File Size: Pages 6
Reproduction Date: 2015

Title: Standardised Radon Index (Sri): a Normalisation of Radon Data-sets in Terms of Standard Normal Variables : Volume 11, Issue 7 (05/07/2011)  
Author: Crockett, R. G. M.
Volume: Vol. 11, Issue 7
Language: English
Subject: Science, Natural, Hazards
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2011
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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M. Crocket, R. G., & Holt, C. P. (2011). Standardised Radon Index (Sri): a Normalisation of Radon Data-sets in Terms of Standard Normal Variables : Volume 11, Issue 7 (05/07/2011). Retrieved from http://www.ebooklibrary.org/


Description
Description: Data Analysis Group, School of Science and Technology, University of Northampton, Northampton, UK. During the second half of 2002, from late June to mid December, the University of Northampton Radon Research Group operated two continuous hourly-sampling radon detectors 2.25 km apart in the English East Midlands. This period included the Dudley earthquake (ML = 5, 22 September 2002) and also a smaller earthquake in the English Channel (ML = 3, 26 August 2002). Rolling/sliding windowed cross-correlation of the paired radon time-series revealed periods of simultaneous similar radon anomalies which occurred at the time of these earthquakes but at no other times during the overall radon monitoring period. Standardising the radon data in terms of probability of magnitude, analogous to the Standardised Precipitation Indices (SPIs) used in drought modelling, which effectively equalises different non-linear responses, reveals that the dissimilar relative magnitudes of the anomalies are in fact closely equiprobabilistic. Such methods could help in identifying anomalous signals in radon – and other – time-series and in evaluating their statistical significance in terms of earthquake precursory behaviour.

Summary
Standardised Radon Index (SRI): a normalisation of radon data-sets in terms of standard normal variables

Excerpt
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