DOI: 10.1007/s00382-013-1719-7
Scopus记录号: 2-s2.0-84891624546
论文题名: Regional and global projections of twenty-first century glacier mass changes in response to climate scenarios from global climate models
作者: Radić V. ; Bliss A. ; Beedlow A.C. ; Hock R. ; Miles E. ; Cogley J.G.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2014
卷: 42, 期: 2017-01-02 起始页码: 37
结束页码: 58
语种: 英语
英文关键词: Global climate models
; Projections of sea level rise
; Regional and global glacier mass changes
英文摘要: A large component of present-day sea-level rise is due to the melt of glaciers other than the ice sheets. Recent projections of their contribution to global sea-level rise for the twenty-first century range between 70 and 180 mm, but bear significant uncertainty due to poor glacier inventory and lack of hypsometric data. Here, we aim to update the projections and improve quantification of their uncertainties by using a recently released global inventory containing outlines of almost every glacier in the world. We model volume change for each glacier in response to transient spatially-differentiated temperature and precipitation projections from 14 global climate models with two emission scenarios (RCP4.5 and RCP8.5) prepared for the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. The multi-model mean suggests sea-level rise of 155 ± 41 mm (RCP4.5) and 216 ± 44 mm (RCP8.5) over the period 2006-2100, reducing the current global glacier volume by 29 or 41 %. The largest contributors to projected global volume loss are the glaciers in the Canadian and Russian Arctic, Alaska, and glaciers peripheral to the Antarctic and Greenland ice sheets. Although small contributors to global volume loss, glaciers in Central Europe, low-latitude South America, Caucasus, North Asia, and Western Canada and US are projected to lose more than 80 % of their volume by 2100. However, large uncertainties in the projections remain due to the choice of global climate model and emission scenario. With a series of sensitivity tests we quantify additional uncertainties due to the calibration of our model with sparsely observed glacier mass changes. This gives an upper bound for the uncertainty range of ±84 mm sea-level rise by 2100 for each projection. © 2013 Springer-Verlag Berlin Heidelberg. 资助项目: NASA, National Aeronautics and Space Administration
; NASA, National Aeronautics and Space Administration
; NSF, National Science Foundation
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54549
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: Earth, Ocean and Atmospheric Sciences Department, University of British Columbia, 2020-2207 Main Mall, Vancouver, BC, V6T 1Z4, Canada; Geophysical Institute, University of Alaska Fairbanks, 903 Koyukuk Dr., Fairbanks, AK, 99775-7320, United States; Scott Polar Research Institute, University of Cambridge, Lensfield Road, Cambridge, CB2 1ER, United Kingdom; Department of Geography, Trent University, Peterborough, ON, K9J 7B8, Canada
Recommended Citation:
Radić V.,Bliss A.,Beedlow A.C.,et al. Regional and global projections of twenty-first century glacier mass changes in response to climate scenarios from global climate models[J]. Climate Dynamics,2014-01-01,42(2017-01-02)