| |  Online-Ressource |
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| Verfasst von: | Dinger, Florian [VerfasserIn]  |
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| | Bobrowski, Nicole [VerfasserIn] |
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| | Warnach, Simon [VerfasserIn] |
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| | Platt, Ulrich [VerfasserIn] |
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| | Wagner, Thomas [VerfasserIn] |
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| Titel: | Periodicity in the BrO/SO2 molar ratios in the volcanic gas plume of Cotopaxi and its correlation with the earth tides during the eruption in 2015 |
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| Verf.angabe: | Florian Dinger, Nicole Bobrowski, Simon Warnach, Stefan Bredemeyer, Silvana Hidalgo, Santiago Arellano, Bo Galle, Ulrich Platt, and Thomas Wagner |
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| Jahr: | 2017 |
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| Umfang: | 28 S. |
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| Fussnoten: | Die Zahl 2 ist im Titel tiefgestellt ; Gesehen am 21.02.2020 |
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| Titel Quelle: | Enthalten in: Solid earth |
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| Ort Quelle: | Göttingen : Copernicus Publ., 2010 |
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| Jahr Quelle: | 2017 |
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| Band/Heft Quelle: | (2017), Seite 1-28 |
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| ISSN Quelle: | 1869-9529 |
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| Abstract: | We evaluated NOVAC (Network for Observation of Volcanic and Atmospheric Change) gas emission data from the 2015 eruption of Cotopaxi volcano (Ecuador) for BrO/SO<sub>2</sub> molar ratios. Statistical analysis of the data revealed a conspicuous periodic pattern with a periodicity of about two weeks in a three month time series. While the time series is too short to rule out a chance recurrence of transient geological or meteorological events as a possible origin for the periodic signal, we nevertheless took this observation as a motivation to examine the influence of natural forcings with periodicities of around two weeks on volcanic gas emissions. One strong aspirant with such a periodicity are the Earth tides, which are thus central in this study. We present the BrO/SO<sub>2</sub> data, analyse the reliability of the periodic signal, discuss a possible meteorological or eruption-induced origin of this signal, and compare the signal with the theoretical ground surface displacement pattern caused by the Earth tides. Central result is the observation of a significant correlation between the BrO/SO<sub>2</sub> molar ratios with the North-South and vertical components of the calculated tide-induced surface displacement with correlation coefficients of 47 % and 36 %, respectively. From all other investigated parameters, only the correlation between the BrO/SO<sub>2</sub> molar ratios and the relative humidity in the local atmosphere resulted in a comparable correlation coefficient of about 33 %. |
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| DOI: | doi:10.5194/se-2017-89 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
kostenfrei: Volltext ; Verlag: https://doi.org/10.5194/se-2017-89 |
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| | kostenfrei: Volltext: https://www.solid-earth-discuss.net/se-2017-89/ |
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| | DOI: https://doi.org/10.5194/se-2017-89 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1569815496 |
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| Verknüpfungen: | → Zeitschrift |
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Periodicity in the BrO/SO2 molar ratios in the volcanic gas plume of Cotopaxi and its correlation with the earth tides during the eruption in 2015 / Dinger, Florian [VerfasserIn]; 2017 (Online-Ressource)
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