气候变化领域集成服务门户(CCPortal): 30-year record of Himalaya mass-wasting reveals landscape perturbations by extreme events

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DOI	10.1038/s41467-021-26964-8
	30-year record of Himalaya mass-wasting reveals landscape perturbations by extreme events
	Jones J.N.; Boulton S.J.; Stokes M.; Bennett G.L.; Whitworth M.R.Z.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	In mountainous environments, quantifying the drivers of mass-wasting is fundamental for understanding landscape evolution and improving hazard management. Here, we quantify the magnitudes of mass-wasting caused by the Asia Summer Monsoon, extreme rainfall, and earthquakes in the Nepal Himalaya. Using a newly compiled 30-year mass-wasting inventory, we establish empirical relationships between monsoon-triggered mass-wasting and monsoon precipitation, before quantifying how other mass-wasting drivers perturb this relationship. We find that perturbations up to 5 times greater than that expected from the monsoon alone are caused by rainfall events with 5-to-30-year return periods and short-term (< 2 year) earthquake-induced landscape preconditioning. In 2015, the landscape preconditioning is strongly controlled by the topographic signature of the Gorkha earthquake, whereby high Peak Ground Accelerations coincident with high excess topography (rock volume above a landscape threshold angle) amplifies landscape damage. Furthermore, earlier earthquakes in 1934, 1988 and 2011 are not found to influence 2015 mass-wasting. © 2021, The Author(s).
语种	英语
scopus关键词	earthquake; extreme event; mass wasting; monsoon; return period; summer; Nepal
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251303
作者单位	School of Environmental Sciences, University of East Anglia, Norwich Research Park, Norwich, NR4 7TU, United Kingdom; School of Geography, Earth and Environmental Sciences, University of Plymouth, Drakes Circus, Plymouth, PL4 8AA, United Kingdom; College of Life and Environmental Sciences, Geography, University of Exeter, Amory Building, Rennes Drive, Exeter, EX4 4RJ, United Kingdom; AECOM, East Wing Plumer House, Tailyour Road, Plymouth, PL6 5DH, United Kingdom
推荐引用方式 GB/T 7714	Jones J.N.,Boulton S.J.,Stokes M.,et al. 30-year record of Himalaya mass-wasting reveals landscape perturbations by extreme events[J],2021,12(1).
APA	Jones J.N.,Boulton S.J.,Stokes M.,Bennett G.L.,&Whitworth M.R.Z..(2021).30-year record of Himalaya mass-wasting reveals landscape perturbations by extreme events.Nature Communications,12(1).
MLA	Jones J.N.,et al."30-year record of Himalaya mass-wasting reveals landscape perturbations by extreme events".Nature Communications 12.1(2021).