气候变化领域集成服务门户(CCPortal): Arctic rock coast responses under a changing climate

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DOI	10.1016/j.rse.2019.111500
	Arctic rock coast responses under a changing climate
	Lim M.; Strzelecki M.C.; Kasprzak M.; Swirad Z.M.; Webster C.; Woodward J.; Gjelten H.
发表日期	2020
ISSN	00344257
卷号	236
英文摘要	It has been widely reported that Arctic sea ice has decreased in both extent and thickness, coupled with steadily rising mean annual temperatures. These trends have been particularly severe along the rock coast of southern Svalbard. Concerns have been raised over the potential for higher energy storms and longer ice-free open water seasons to increase the exposure of Arctic coasts, and consequently the concentration of infrastructure critical to Arctic community survival, to enhanced rates of erosion. Here we present and apply innovative remote sensing, monitoring and process analyses to assess the impact of recent coastal climatic changes. High resolution analyses demonstrate that the small scale (<0.001 m3) changes that are rarely considered quantitatively exhibit geomorphic responses distinct from those of larger, more readily detected cliff failures. We monitor temperature depth profiles in both the shore platform and the cliff face to show rock sensitivity over time to both global and local influences. The results demonstrate the efficacy of thermal processes on Arctic rock cliffs relative to platforms, and may hold implications for understanding strandflat development rates. New three-dimensional thermography (thermal mapping) and process zone characterisation has been used to spatially assess the sensitivity of Arctic rock coast responses to contemporary processes on deglaciating coasts. Through the spatial and temporal analyses of key geomorphic behaviour zones and comparison over a range of sites, the complex and changing interplay between subaerial weathering and cryogenic and intertidal processes has been highlighted. These data challenge long standing assumptions over the future of Arctic rock coasts and identify new, focused lines of enquiry on the decline in cryogenic processes and understanding the sensitivity of Arctic rock coasts to climatic changes. © 2019 The Author(s)
英文关键词	Arctic geomorphology; Climate change; Photogrammetry; Rock coasts; Structure from motion; Temperature mapping; Terrestial laser scanning
语种	英语
scopus关键词	Cryogenics; Landforms; Mapping; Photogrammetry; Remote sensing; Rocks; Sea ice; Weathering; Geomorphic response; High resolution analysis; Laser scanning; Mean annual temperatures; Spatial and temporal analysis; Structure from motion; Temperature depth profiles; Temperature mapping; Climate change; climate change; deglaciation; geomorphology; ice thickness; laser method; mapping method; open water; photogrammetry; remote sensing; rocky shore; sea ice; shore platform; temperature effect; Arctic; Svalbard; Svalbard and Jan Mayen
来源期刊	Remote Sensing of Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/179567
作者单位	Engineering and Environment, Northumbria University, Ellison Building, Newcastle Upon Tyne, NE1 8ST, United Kingdom; Institute of Geography and Regional Development, University of Wrocław, pl. Uniwersytecki 1, Wroclaw, 50-137, Poland; Department of Geography, Durham University, South Road, Durham, DH1 3LE, United Kingdom; WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland; Observation and Climate Department, Norwegian Meteorological Institute, PO Box 43 Blindern, Oslo, NO-0313, Norway; Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Permafrost Research, Potsdam, 14473, Germany
推荐引用方式 GB/T 7714	Lim M.,Strzelecki M.C.,Kasprzak M.,et al. Arctic rock coast responses under a changing climate[J],2020,236.
APA	Lim M..,Strzelecki M.C..,Kasprzak M..,Swirad Z.M..,Webster C..,...&Gjelten H..(2020).Arctic rock coast responses under a changing climate.Remote Sensing of Environment,236.
MLA	Lim M.,et al."Arctic rock coast responses under a changing climate".Remote Sensing of Environment 236(2020).