气候变化领域集成服务门户(CCPortal): Hydrologically Induced Deformation in Long Valley Caldera and Adjacent Sierra Nevada

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DOI	10.1029/2020JB019495
	Hydrologically Induced Deformation in Long Valley Caldera and Adjacent Sierra Nevada
	Silverii F.; Montgomery-Brown E.K.; Borsa A.A.; Barbour A.J.
发表日期	2020
ISSN	21699313
卷号	125 期号:5
英文摘要	Vertical and horizontal components of GNSS displacements in the Long Valley Caldera and adjacent Sierra Nevada range show a clear correlation with hydrological trends at both multiyear and seasonal time scales. We observe a clear vertical and horizontal seasonal deformation pattern primarily attributable to the solid earth response to hydrological surface loading at large-to-regional (Sierra Nevada range) scales. Several GNSS sites, located at the eastern edge of the Sierra Nevada along the southwestern rim of Long Valley Caldera, also show significant horizontal deformation that cannot be explained by elastic deformation from surface loading. Due to the location of these sites and the strong correlation between their horizontal displacements and spring discharge, we hypothesize that this deformation reflects poroelastic processes related to snowmelt runoff water infiltrating into the Sierra Nevada slopes around Long Valley Caldera. Interestingly, this is also an area where water infiltrates to feed the local hydrothermal system, and where snowmelt-induced earthquake swarms have been recently detected. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	GNSS observations; Long Valley Caldera; nontectonic deformation; transient signal
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187864
作者单位	Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, United States; Now at German Research Centre for Geosciences (GFZ), Potsdam, Germany; California Volcano Observatory, United States Geological Survey, Menlo Park, CA, United States; Earthquake Science Center, United States Geological Survey, Menlo Park, CA, United States
推荐引用方式 GB/T 7714	Silverii F.,Montgomery-Brown E.K.,Borsa A.A.,et al. Hydrologically Induced Deformation in Long Valley Caldera and Adjacent Sierra Nevada[J],2020,125(5).
APA	Silverii F.,Montgomery-Brown E.K.,Borsa A.A.,&Barbour A.J..(2020).Hydrologically Induced Deformation in Long Valley Caldera and Adjacent Sierra Nevada.Journal of Geophysical Research: Solid Earth,125(5).
MLA	Silverii F.,et al."Hydrologically Induced Deformation in Long Valley Caldera and Adjacent Sierra Nevada".Journal of Geophysical Research: Solid Earth 125.5(2020).