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DOI | 10.1029/2021GL095381 |
Steady-state surface NMR for mapping of groundwater | |
D. Grombacher; L. Liu; M.P. Griffiths; M.Ø; . Vang; J.J. Larsen | |
2021-11-10 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | Groundwater is a critical freshwater source for billions of people (Klee, 2013), but resources are increasingly stressed by climate change, pollution, and overexploitation (Frappart and Ramillien, 2018). Locating groundwater sources and monitoring their sustainable use is a difficult task. One method that shows great promise is surface nuclear magnetic resonance (NMR), as it is the only technique capable of non-invasive direct measurements of subsurface water content and pore-space properties. Unfortunately, surface NMR often suffers from low-amplitude signals that limit mapping speeds and may prohibit measurements in noisy environments. We demonstrate a steady-state scheme for surface NMR, enabled by recent breakthroughs in transmitter capabilities and numerical modeling, that delivers orders of magnitude signal enhancements. The new technique is a highly efficient measurement that is both narrowband and utilizes the full measurement interval in contrast to traditional approaches. Our results demonstrate that high-fidelity groundwater measurements are now possible in hitherto inaccessible areas. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/340934 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | D. Grombacher,L. Liu,M.P. Griffiths,et al. Steady-state surface NMR for mapping of groundwater[J]. Geophysical Research Letters,2021. |
APA | D. Grombacher,L. Liu,M.P. Griffiths,M.Ø,. Vang,&J.J. Larsen.(2021).Steady-state surface NMR for mapping of groundwater.Geophysical Research Letters. |
MLA | D. Grombacher,et al."Steady-state surface NMR for mapping of groundwater".Geophysical Research Letters (2021). |
条目包含的文件 | 条目无相关文件。 |
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