| A major increase in winter snowfall during the middle Holocene on western Greenland caused by reduced sea ice in Baffin Bay and the Labrador Sea | |
| Thomas, Elizabeth K.1,2; Briner, Jason P.2; Ryan-Henry, John J.3,4,5; Huang, Yongsong3,6 | |
| 2016-05-28 | |
| 发表期刊 | GEOPHYSICAL RESEARCH LETTERS
 |
| 卷号 | 43期号:10页码:5302-5308 |
| 文章类型 | Article |
| 摘要 | Precipitation is predicted to increase in the Arctic as temperature increases and sea ice retreats. Yet the mechanisms controlling precipitation in the Arctic are poorly understood and quantified only by the short, sparse instrumental record. We use hydrogen isotope ratios (delta H-2) of lipid biomarkers in lake sediments from western Greenland to reconstruct precipitation seasonality and summer temperature during the past 8 kyr. Aquatic biomarker delta H-2 was 100 parts per thousand more negative from 6 to 4 ka than during the early and late Holocene, which we interpret to reflect increased winter snowfall. The middle Holocene also had high summer air temperature, decreased early winter sea ice in Baffin Bay and the Labrador Sea, and a strong, warm West Greenland Current. These results corroborate model predictions of winter snowfall increases caused by sea ice retreat and furthermore suggest that warm currents advecting more heat into the polar seas may enhance Arctic evaporation and snowfall. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.1002/2016GL068513 |
| 关键词[WOS] | ARCTIC PRECIPITATION ; STABLE HYDROGEN ; LAKE-SEDIMENTS ; ISOTOPES ; OXYGEN ; RECORD |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000378347500078 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/5728 |
| 专题 | 加速器质谱中心 |
| 作者单位 | 1.Univ Massachusetts, Dept Geosci, Amherst, MA 01003 USA 2.Univ Buffalo, Dept Geol, Buffalo, NY USA 3.Brown Univ, Dept Earth Environm & Planetary Sci, Providence, RI 02912 USA 4.Univ Rhode Isl, Dept Marine Affairs, Kingston, RI 02881 USA 5.Roger Williams Univ, Sch Law, Bristol, RI 02809 USA 6.Chinese Acad Sci, Inst Earth Environm, Xian, Peoples R China |
| 推荐引用方式 GB/T 7714 | Thomas, Elizabeth K.,Briner, Jason P.,Ryan-Henry, John J.,et al. A major increase in winter snowfall during the middle Holocene on western Greenland caused by reduced sea ice in Baffin Bay and the Labrador Sea[J]. GEOPHYSICAL RESEARCH LETTERS,2016,43(10):5302-5308. |
| APA | Thomas, Elizabeth K.,Briner, Jason P.,Ryan-Henry, John J.,&Huang, Yongsong.(2016).A major increase in winter snowfall during the middle Holocene on western Greenland caused by reduced sea ice in Baffin Bay and the Labrador Sea.GEOPHYSICAL RESEARCH LETTERS,43(10),5302-5308. |
| MLA | Thomas, Elizabeth K.,et al."A major increase in winter snowfall during the middle Holocene on western Greenland caused by reduced sea ice in Baffin Bay and the Labrador Sea".GEOPHYSICAL RESEARCH LETTERS 43.10(2016):5302-5308. |
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