气候变化领域集成服务门户(CCPortal): Real-time gas monitoring at the Tekke Hamam geothermal field (Western Anatolia, Turkey): an assessment in relation to local seismicity

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DOI	10.1007/s11069-020-04238-8
	Real-time gas monitoring at the Tekke Hamam geothermal field (Western Anatolia, Turkey): an assessment in relation to local seismicity
	Süer S.; Wiersberg T.; Güleç N.; Erzinger J.; Parlaktuna M.
发表日期	2020
ISSN	0921030X
起始页码	1655
结束页码	1678
卷号	104 期号:2
英文摘要	This study presents the results of a real-time gas monitoring experiment conducted, via the use of a quadrupole mass spectrometer, in a mofette field within the Tekke Hamam geothermal site in western Anatolia (Turkey), a tectonically active region hosting several east–west trending grabens. The study is aimed to establish a baseline gas profile of the region. Within the framework of the experiment, gas compositions (CO2, N2, O2, H2, H2S, CH4, He, and Ar) and flow rate of a mofette were monitored during two observation periods: November 2007–January 2008 and April–July 2008. During the course of monitoring, the major gas component was CO2 with concentration changing around 96 volume percent. Other gases, from the most abundant to the least, were N2, CH4, O2, H2S, Ar, H2, and He. The study produced a short-term, baseline gas profile of the region with daily/diurnal variations and temporal gas fluctuations appearing as instant signals. Although the temporal gas fluctuations did not reach the anomaly level (variations staying within the mean ± 2σ), some of the variations in more than one parameter in the gas compositions (exceeding the mean ± 1σ), accompanied by changes in the diurnal gas pulses lasting for long durations, were correlated with the seismic events selected according to the adopted seismic event elimination criteria. The variations were mainly attributed to changing gas mixing ratios in relation to porosity/permeability modifications possibly related to seismicity. Studies involving the continuous monitoring of meteorological parameters are necessary to assign these variations to geogenic events. © 2020, Springer Nature B.V.
关键词	Mofette Quadrupole mass spectrometer Real-time gas monitoring Seismic event Tekke Hamam geothermal field
英文关键词	concentration (composition); environmental monitoring; gas flow; geothermal system; mass spectrometry; mixing ratio; real time; seismic method; seismicity; Anatolia; Turkey
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/205954
作者单位	Department of Geological Engineering, Middle East Technical University, Ankara, 06800, Turkey; Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Potsdam, 14473, Germany; Department of Petroleum and Natural Gas Engineering, Middle East Technical University, Ankara, 06800, Turkey; Central Laboratory, Middle East Technical University, Ankara, 06800, Turkey
推荐引用方式 GB/T 7714	Süer S.,Wiersberg T.,Güleç N.,et al. Real-time gas monitoring at the Tekke Hamam geothermal field (Western Anatolia, Turkey): an assessment in relation to local seismicity[J],2020,104(2).
APA	Süer S.,Wiersberg T.,Güleç N.,Erzinger J.,&Parlaktuna M..(2020).Real-time gas monitoring at the Tekke Hamam geothermal field (Western Anatolia, Turkey): an assessment in relation to local seismicity.Natural Hazards,104(2).
MLA	Süer S.,et al."Real-time gas monitoring at the Tekke Hamam geothermal field (Western Anatolia, Turkey): an assessment in relation to local seismicity".Natural Hazards 104.2(2020).