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Dynamical Model for Indoor Radon Concentration Monitoring
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SYSNO ASEP 0323999 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Dynamical Model for Indoor Radon Concentration Monitoring Title Dynamický model pro koncentraci radonu v budovách Author(s) Brabec, Marek (UIVT-O) RID, SAI, ORCID
Jílek, K. (CZ)Source Title Environmetrics - ISSN 1180-4009
Roč. 20, č. 6 (2009), s. 718-729Number of pages 12 s. Action TIES 2007. Annual Meeting of the International Environmental Society /18./ Event date 16.08.2007-20.08.2007 VEvent location Mikulov Country CZ - Czech Republic Event type WRD Language eng - English Country GB - United Kingdom Keywords non-parametric regression ; dynamic modeling ; time-varying coefficients Subject RIV BB - Applied Statistics, Operational Research CEZ AV0Z10300504 - UIVT-O (2005-2011) UT WOS 000271150100010 EID SCOPUS 70349917994 DOI 10.1002/env.973 Annotation In this paper,we will deal with interesting example of natural risk modeling - namely of indoor radon concentration. We will illustrate, how the traditional view based on fixed (i.e., time-invariant) coefficient models can be misleading. Then we formulate a nonparametric regression dynamic model as a doable alternative. Situation is not entirely standard here, as the smoothed and weight-giving variables are different. We illustrate on data coming from a rare intensive measurement campaign in an occupied house with simultaneous measurements taken in different rooms. We also illustrate how even such a simple model can produce behavior that throws some light on radon experts' discussions about natural radon concentration circadial movement phase. This is because the model acts as a linear but time-varying filter that can change not only amplitude but also phase between different rooms of the same house, suggesting that there might not be a universal phase of (e.g., daily) radon variation. Workplace Institute of Computer Science Contact Tereza Šírová, sirova@cs.cas.cz, Tel.: 266 053 800 Year of Publishing 2010
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