globalchange  > 影响、适应和脆弱性
DOI: 10.5194/tc-11-2943-2017
Scopus记录号: 2-s2.0-85038355008
论文题名:
In situ nuclear magnetic resonance response of permafrost and active layer soil in boreal and tundra ecosystems
作者: Andy Kass M; , Irons T; P; , Minsley B; J; , Pastick N; J; , Brown D; R; N; , Wylie B; K
刊名: Cryosphere
ISSN: 19940416
出版年: 2017
卷: 11, 期:6
起始页码: 2943
结束页码: 2955
语种: 英语
英文关键词: active layer ; borehole ; freezing ; geophysics ; in situ measurement ; interdisciplinary approach ; nuclear magnetic resonance ; nucleation ; permafrost ; pore space ; remote sensing ; soil type ; statistical analysis ; tundra ; wildfire
英文摘要: Characterization of permafrost, particularly warm and near-surface permafrost which can contain significant liquid water, is critical to understanding complex interrelationships with climate change, ecosystems, and disturbances such as wildfires. Understanding the vulnerability and resilience of permafrost requires an interdisciplinary approach, relying on (for example) geophysical investigations, ecological characterization, direct observations, remote sensing, and more. As part of a multiyear investigation into the impacts of wildfires on permafrost, we have collected in situ measurements of the nuclear magnetic resonance (NMR) response of the active layer and permafrost in a variety of soil conditions, types, and saturations. In this paper, we summarize the NMR data and present quantitative relationships between active layer and permafrost liquid water content and pore sizes and show the efficacy of borehole NMR (bNMR) to permafrost studies. Through statistical analyses and synthetic freezing simulations, we also demonstrate that borehole NMR is sensitive to the nucleation of ice within soil pore spaces. © Author(s) 2017.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75458
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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作者单位: Crustal Geophysics and Geochemistry Science Center, US Geological Survey, Denver, CO, United States; Department of Civil and Environmental Engineering, Energy and Geoscience Institute, University of Utah, Salt Lake City, UT, United States; Stinger Ghaffarian Technologies, Inc., Sioux Falls, SD, United States; Department of Forest Resources, University of Minnesota Twin Cities, St. Paul, MN, United States; Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, AK, United States; Earth Resources Observation and Science Center, US Geological Survey, Sioux Falls, SD, United States; Hydrogeophysics Group, Aarhus University, Aarhus, Denmark

Recommended Citation:
Andy Kass M,, Irons T,P,et al. In situ nuclear magnetic resonance response of permafrost and active layer soil in boreal and tundra ecosystems[J]. Cryosphere,2017-01-01,11(6)
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