DOI: 10.1175/JCLI-D-17-0465.1
Scopus记录号: 2-s2.0-85047066511
论文题名: Quantifying the sensitivity of sea level change in coastal localities to the geometry of polar ice mass flux
作者: Mitrovica J.X. ; Hay C.C. ; Kopp R.E. ; Harig C. ; Latychev K.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2018
卷: 31, 期: 9 起始页码: 3701
结束页码: 3709
语种: 英语
英文关键词: Climate change
; Ice sheets
; Sea level
Scopus关键词: Climate change
; Geometry
; Glaciers
; Gravitation
; Hazards
; Ice
; Melting
; Annual variability
; British Columbia
; Evolving patterns
; Geographic pattern
; Hazard Assessment
; Ice sheet
; Satellite gravity
; Sensitivity kernels
; Sea level
英文摘要: It has been known for over a century that the melting of individual ice sheets and glaciers drives distinct geographic patterns, or fingerprints, of sea level change, and recent studies have highlighted the implications of this variability for hazard assessment and inferences of meltwater sources. These studies have computed fingerprints using simplified melt geometries; however, a more generalized treatment would be advantageous when assessing or projecting sea level hazards in the face of quickly evolving patterns of ice mass flux. In this paper the usual fingerprint approach is inverted to compute site-specific sensitivity kernels for a global database of coastal localities. These kernels provide a mapping between geographically variable mass flux across each ice sheet and glacier and the associated static sea level change at a given site. Kernels are highlighted for a subset of sites associated with melting from Greenland, Antarctica, and the Alaska-Yukon-British Columbia glacier system. The latter, for example, reveals an underappreciated sensitivity of ongoing and future sea level change along the U.S. West Coast to the geometry of ice mass flux in the region. Finally, the practical utility of these kernels is illustrated by computing sea level predictions at a suite of sites associated with annual variability in Greenland ice mass since 2003 constrained by satellite gravity measurements. © 2018 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111562
Appears in Collections: 气候减缓与适应
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作者单位: Earth and Planetary Sciences, Harvard University, Cambridge, MA, United States; Earth and Environmental Sciences, Boston College, Chestnut Hill, MA, United States; Department of Earth and Planetary Sciences, Institute of Earth, Ocean, United States; Atmospheric Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, United States; Department of Geosciences, The University of Arizona, Tucson, AZ, United States
Recommended Citation:
Mitrovica J.X.,Hay C.C.,Kopp R.E.,et al. Quantifying the sensitivity of sea level change in coastal localities to the geometry of polar ice mass flux[J]. Journal of Climate,2018-01-01,31(9)