气候变化领域集成服务门户(CCPortal): In situ nuclear magnetic resonance response of permafrost and active layer soil in boreal and tundra ecosystems

CCPortal

DOI	10.5194/tc-11-2943-2017
	In situ nuclear magnetic resonance response of permafrost and active layer soil in boreal and tundra ecosystems
	Andy Kass M.; Irons T.P.; Minsley B.J.; Pastick N.J.; Brown D.R.N.; Wylie B.K.
发表日期	2017
ISSN	19940416
卷号	11 期号:6
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.
学科领域	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
语种	英语
scopus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
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/119289
作者单位	Crustal Geophysics and Geochemistry Science Center, US Geological Survey, Denver, CO 80225, United States; Department of Civil and Environmental Engineering, Energy and Geoscience Institute, University of Utah, Salt Lake City, UT 84112, United States; Stinger Ghaffarian Technologies, Inc., Sioux Falls, SD 57198, United States; Department of Forest Resources, University of Minnesota Twin Cities, St. Paul, MN 55108, United States; Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, AK 99775, United States; Earth Resources Observation and Science Center, US Geological Survey, Sioux Falls, SD 57198, United States; Hydrogeophysics Group, Aarhus University, Aarhus, 8000, Denmark
推荐引用方式 GB/T 7714	Andy Kass M.,Irons T.P.,Minsley B.J.,et al. In situ nuclear magnetic resonance response of permafrost and active layer soil in boreal and tundra ecosystems[J],2017,11(6).
APA	Andy Kass M.,Irons T.P.,Minsley B.J.,Pastick N.J.,Brown D.R.N.,&Wylie B.K..(2017).In situ nuclear magnetic resonance response of permafrost and active layer soil in boreal and tundra ecosystems.Cryosphere,11(6).
MLA	Andy Kass M.,et al."In situ nuclear magnetic resonance response of permafrost and active layer soil in boreal and tundra ecosystems".Cryosphere 11.6(2017).