气候变化领域集成服务门户(CCPortal): Table 4. Trace gas concentrations from samples taken at Ginninderra

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DOI	https://doi.org/10.1594/PANGAEA.853833
	Table 4. Trace gas concentrations from samples taken at Ginninderra
	Zoe; Loh; Leuning; Ray; Zegelin; Steve; Etheridge; David; Bai; Jia-Chi; Naylor; Travis; Griffith; David W T
发布日期	2015-10-08
数据集类型	dataset
英文简介	We assess the performance of an inverse Lagrangian dispersion technique for its suitability to quantify leakages from geological storage of CO2. We find the technique is accurate ((QbLS/Q)=0.99, sigma=0.29) when strict meteorological filtering is applied to ensure that Monin–Obukhov Similarity Theory is valid for the periods analysed and when downwind enrichments in tracer gas concentration are 1% or more above background concentration. Because of their respective baseline atmospheric concentrations, this enrichment criterion is less onerous for CH4 than for CO2. Therefore for geologically sequestered gas reservoirs with a significant CH4 component, monitoring CH4 as a surrogate for CO2 leakage could be as much as 10 times more sensitive than monitoring CO2 alone. Additional recommendations for designing a robust atmospheric monitoring strategy for geosequestration include: continuous concentration data; exact inter-calibration of up- and downwind concentration measurements; use of an array of point concentration sensors to maximise the use of spatial information about the leakage plume; and precise isotope ratio measurement to confirm the source of any concentration elevations detected.
空间范围	Latitude: -35.300000 * Longitude: 149.120000
时间范围	2007-05-08T12:46:00 - 2007-05-08T14:04:00
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/216958
推荐引用方式 GB/T 7714	Zoe,Loh,Leuning,et al. Table 4. Trace gas concentrations from samples taken at Ginninderra.2015-10-08.https://doi.org/10.1594/PANGAEA.853833.