Nonlinear rise in Greenland runoff in response to post-industrial Arctic warming

Trusel Luke D.; Das Sarah B.; Osman Matthew B.; Evans Matthew J.; Smith Ben E.; Fettweis Xavier; McConnell Joseph R.; Noel Brice P. Y.; van den Broeke Michiel R.

首页> 外文期刊>Nature >Nonlinear rise in Greenland runoff in response to post-industrial Arctic warming

【24h】

Nonlinear rise in Greenland runoff in response to post-industrial Arctic warming

机译：工业化后北极变暖对格陵兰径流的非线性影响

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

The Greenland ice sheet (GrIS) is a growing contributor to global sea-level rise(1), with recent ice mass loss dominated by surface meltwater runoff(2,3). Satellite observations reveal positive trends in GrIS surface melt extent(4), but melt variability, intensity and runoff remain uncertain before the satellite era. Here we present the first continuous, multi-century and observationally constrained record of GrIS surface melt intensity and runoff, revealing that the magnitude of recent GrIS melting is exceptional over at least the last 350 years. We develop this record through stratigraphic analysis of central west Greenland ice cores, and demonstrate that measurements of refrozen melt layers in percolation zone ice cores can be used to quantifiably, and reproducibly, reconstruct past melt rates. We show significant (P < 0.01) and spatially extensive correlations between these ice-core-derived melt records and modelled melt rates(5,6) and satellite-derived melt duration(4) across Greenland more broadly, enabling the reconstruction of past ice-sheet-scale surface melt intensity and runoff. We find that the initiation of increases in GrIS melting closely follow the onset of industrial-era Arctic warming in the mid-1800s, but that the magnitude of GrIS melting has only recently emerged beyond the range of natural variability. Owing to a nonlinear response of surface melting to increasing summer air temperatures, continued atmospheric warming will lead to rapid increases in GrIS runoff and sea-level contributions.

机译：格陵兰冰盖（GrIS）是全球海平面上升的一个日益增长的因素（1），近期冰的质量损失主要由地表融水径流（2,3）决定。卫星观测揭示了GrIS表面融化程度的积极趋势（4），但在卫星时代之前，融化变异性，强度和径流仍不确定。在这里，我们展示了GrIS表面融化强度和径流的第一个连续的，跨世纪的，受观测约束的记录，揭示了至少在最近350年中，最近的GrIS融化的程度是异常的。我们通过对格陵兰中部西部冰芯的地层分析开发了该记录，并证明了对渗滤区冰芯中的再融化融化层的测量可用于定量和可再现地重建过去的融化速率。我们更广泛地显示了这些冰芯衍生的融化记录与模型化融化速率（5,6）和卫星衍生融化持续时间（4）之间的显着（P <0.01）和空间广泛的相关性，从而能够重建过去的冰片级表面熔体强度和径流。我们发现，GrIS融化增加的开始紧随1800年代中期工业时代北极变暖的开始，但是，GrIS融化的程度直到最近才出现，超出了自然可变性的范围。由于表面融化对夏季气温升高的非线性响应，持续的大气变暖将导致GrIS径流和海平面贡献迅速增加。

著录项

来源
《Nature》 |2018年第7734期|104-108|共5页
作者
Trusel Luke D.; Das Sarah B.; Osman Matthew B.; Evans Matthew J.; Smith Ben E.; Fettweis Xavier; McConnell Joseph R.; Noel Brice P. Y.; van den Broeke Michiel R.;
展开▼
作者单位

Rowan Univ Dept Geol Glassboro NJ 08028 USA|Woods Hole Oceanog Inst Dept Geol & Geophys Woods Hole MA 02543 USA;

Woods Hole Oceanog Inst Dept Geol & Geophys Woods Hole MA 02543 USA;

Massachusetts Inst Technol Woods Hole Oceanog Ins Joint Program Oceanog Woods Hole MA USA;

Wheaton Coll Dept Chem Norton MA 02766 USA;

Univ Washington Appl Phys Lab Polar Sci Ctr Seattle WA 98105 USA;

Univ Liege Dept Geog Liege Belgium;

Desert Res Inst Div Hydrol Sci Reno NV USA;

Univ Utrecht Inst Marine & Atmospher Res Utrecht Netherlands;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类
关键词

相似文献

外文文献
中文文献
专利

1. Increased runoff from melt from the Greenland ice sheet: a response to global warming. [J] . Hanna E., Irvine-Fynn T., Wise S., Journal of Climate . 2008,第2期

机译：格陵兰冰原融化的径流增加：对全球变暖的反应。
2. Evidence of nonlinearity in the response of net ecosystem COexchange to increasing levels of winter snow depth in the high arctic of Northwest Greenland [J] . Rogers M., Sullivan P., Welker J. Arctic, antarctic, and alpine research . 2011,第1期

机译：西北格陵兰岛高北极地区净生态系统CO交换对冬季积雪深度增加的响应的非线性证据
3. Evidence of Nonlinearity in the Response of Net Ecosystem CO2 Exchange to Increasing Levels of Winter Snow Depth in the High Arctic of Northwest Greenland [J] . Matthew C. Rogers, Patrick F. Sullivan, Jeffrey M. Welker Arctic, antarctic, and alpine research . 2011,第1期

机译：西北格陵兰岛高北极地区净生态系统二氧化碳交换对冬季雪深增加水平响应的非线性证据
4. Response of the Greenland and Antarctic Ice Sheets to Multi-Millennial Greenhouse Warming in the Earth System Model of Intermediate Complexity LOVECLIM [C] . P. Huybrechts, H. Goelzer, I. Janssens, International Space Science Institute workshop on the Earth's cryosphere and sea level change . 2012

机译：格陵兰岛和南极冰床对中间复杂性地球系统模型的多毫升温室变暖的响应Loveclim
5. Arctic ecosystem responses to changes in water availability and warming: Short and long-term responses. [D] . Olivas, Paulo C. 2010

机译：北极生态系统对水供应和变暖的响应：短期和长期响应。
6. The salience of nonlinearities in the boreal winter response to ENSO: Arctic stratosphere and Europe [O] . Israel Weinberger, Chaim I. Garfinkel, Ian P. White, -1

机译：北极冬季对ENSO响应的非线性显着性：北极平流层和欧洲
7. Increased Runoff from Melt from the Greenland Ice Sheet: A Response to Global Warming [O] . Hanna Edward, Huybrechts Philippe, Steffen Konrad, 2008

机译：格陵兰冰原融化的径流增加：对全球变暖的回应

Nonlinear rise in Greenland runoff in response to post-industrial Arctic warming

摘要

著录项

相似文献

相关主题

期刊订阅