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Tidal modulation of temperature oscillations monitored in borehole Yaxcopoil-1 (Yucatán, Mexico)
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SYSNO ASEP 0330215 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Tidal modulation of temperature oscillations monitored in borehole Yaxcopoil-1 (Yucatán, Mexico) Author(s) Čermák, Vladimír (GFU-E) ORCID, RID
Bodri, L. (HU)
Šafanda, Jan (GFU-E) ORCID, RIDSource Title Earth and Planetary Science Letters. - : Elsevier - ISSN 0012-821X
Roč. 282, č. 1-4 (2009), s. 131-139Number of pages 9 s. Language eng - English Country NL - Netherlands Keywords temperature monitoring ; borehole convection ; tidal forcing ; recurrence quantification interval ; (RQI) analysis ; histograms cumulation technique Subject RIV DC - Siesmology, Volcanology, Earth Structure R&D Projects IAA300120603 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GA205/06/1181 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z30120515 - GFU-E (2005-2011) UT WOS 000266899800014 DOI 10.1016/j.epsl.2009.03.009 Annotation For better understanding of temperature state in the subsurface, temperature-depth logs can be suitably completed by high-resolution long-run temperature-time monitoring at selected depths. The results of temperature monitoring at three depth levels in borehole Yaxcopoil-1, Chicxulub impact structure, Mexico (April/May 2006) proved that even when a borehole is in “fully” stabilized conditions, temperature may exhibit certain unrest resembling irregular oscillations in the order of hundredths or (in the extreme case) even first tenths of degree. Two novel methods for detection of the weak fingerprints of stable periodic components in long noisy records, namely the RQI (Recurrence Quantification Interval) analysis and the HiCum (Histograms Cumulation) were used to isolate the constituents with tidal periodicities from temperature oscillations measured in borehole Yaxcopoil-1. Workplace Geophysical Institute Contact Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028 Year of Publishing 2010
Number of the records: 1