Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL080942 |
Heterogeneous Changes in Western North American Glaciers Linked to Decadal Variability in Zonal Wind Strength | |
Menounos, B.1,2; Hugonnet, R.1,2,3; Shean, D.4; Gardner, A.5; Howat, I.6; Berthier, E.3; Pelto, B.1,2; Tennant, C.1,2; Shea, J.1,2; Noh, Myoung-Jong7; Brun, F.8; Dehecq, A.5 | |
2019-01-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:1页码:200-209 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada; France; USA |
英文摘要 | Western North American (WNA) glaciers outside of Alaska cover 14,384km(2) of mountainous terrain. No comprehensive analysis of recent mass change exists for this region. We generated over 15,000 multisensor digital elevation models from spaceborne optical imagery to provide an assessment of mass change for WNA over the period 2000-2018. These glaciers lost 11742gigatons (Gt) of mass, which accounts for up to 0.320.11mm of sea level rise over the full period of study. We observe a fourfold increase in mass loss rates between 2000-2009 [-2.93.1Gt yr(-1)] and 2009-2018 [-12.34.6Gt yr(-1)], and we attribute this change to a shift in regional meteorological conditions driven by the location and strength of upper level zonal wind. Our results document decadal-scale climate variability over WNA that will likely modulate glacier mass change in the future. Plain Language Summary Glaciers in western North America provide important thermal and flow buffering to streams when seasonal snowpack is depleted. We used spaceborne optical satellite imagery to produce thousands of digital elevation models to assess recent mass loss for glaciers in western North America outside of Alaska. Our analysis shows that glacier loss over the period 2009-2018 increased fourfold relative to the period 2000-2009. This mass change over the last 18years is partly explained by changes in atmospheric circulation. Our results can be used for future modeling studies to understand the fate of glaciers under future climate change scenarios. |
英文关键词 | glacier change mass balance zonal wind |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000456938600022 |
WOS关键词 | MASS-BALANCE MEASUREMENTS ; PACIFIC-NORTHWEST ; BRITISH-COLUMBIA ; WATER-RESOURCES ; CASCADE RANGE ; PEYTO GLACIER ; CLIMATE ; CANADA ; WASHINGTON ; STREAMFLOW |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/28472 |
专题 | 气候变化 |
作者单位 | 1.Univ British Columbia, Nat Resources & Environm Studies Inst, Prince George, BC, Canada; 2.Univ British Columbia, Geog, Prince George, BC, Canada; 3.Univ Toulouse, LEGOS, CNES, CNRS,IRD,UPS, Toulouse, France; 4.Univ Washington, Dept Civil & Environm Engn, Seattle, WA 98195 USA; 5.CALTECH, Jet Prop Lab, Pasadena, CA USA; 6.Ohio State Univ, Sch Earth Sci, Columbus, OH 43210 USA; 7.Ohio State Univ, Byrd Polar & Climate Ctr, Columbus, OH 43210 USA; 8.Univ Grenoble Alpes, CNRS, IRD, Grenoble INP,IGE, Grenoble, France |
推荐引用方式 GB/T 7714 | Menounos, B.,Hugonnet, R.,Shean, D.,et al. Heterogeneous Changes in Western North American Glaciers Linked to Decadal Variability in Zonal Wind Strength[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(1):200-209. |
APA | Menounos, B..,Hugonnet, R..,Shean, D..,Gardner, A..,Howat, I..,...&Dehecq, A..(2019).Heterogeneous Changes in Western North American Glaciers Linked to Decadal Variability in Zonal Wind Strength.GEOPHYSICAL RESEARCH LETTERS,46(1),200-209. |
MLA | Menounos, B.,et al."Heterogeneous Changes in Western North American Glaciers Linked to Decadal Variability in Zonal Wind Strength".GEOPHYSICAL RESEARCH LETTERS 46.1(2019):200-209. |
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