Knowledge Management System Of Institute of Earth Environment, CAS
Major increase in winter and spring precipitation during the Little Ice Age in the westerly dominated northern Qinghai-Tibetan Plateau | |
Zhao, JJ (Zhao, Jiaju)[ 1,2 ]; Thomas, EK (Thomas, Elizabeth K.)[ 3 ]; Yao, Y (Yao, Yuan)[ 1 ]; DeAraujo, J (DeAraujo, Jody)[ 2 ]; Huang, YS (Huang, Yongsong)[ 1,2 ] | |
通讯作者 | Huang, Yongsong(yongsong_huang@brown.edu) |
2018-11-01 | |
发表期刊 | QUATERNARY SCIENCE REVIEWS |
ISSN | 0277-3791 |
卷号 | 199页码:30-40 |
文章类型 | 期刊论文 |
摘要 | There have been numerous attempts to use long-chain alkenones (LCAs) in saline lakes for paleotemperature and paleosalinity reconstructions. However, LCAs in saline lakes are often produced by multiple haptophyte species, which may confound data interpretations. Here we analyzed LCAs in a finely laminated, high sedimentation rate core from the hypersaline Lake Gahai in the northern Qinghai-Tibetan Plateau and compared our results with regional instrumental records. We find that LCA unsaturation ratios display a stepwise jump during the instrumental period, most likely originating from a sudden shift in the dominant alkenone producers. In contrast, the percentage of the C37:4 alkenone (%C37:4) displays strong correlations with spring and combined winter-spring precipitation amount (R2 = 0.83 and R2 = 0.81, respectively). We hypothesize that high winter-spring precipitation leads to greater freshening of lake surface water immediately after spring melting, promoting greater production of LCAs with relatively high %C37:4 values by the early blooming haptophyte species. Extending the instrumental calibration downcore allows us to quantitatively reconstruct regional spring and winter-spring precipitation for the past millennium. We find a major increase in winter-spring precipitation during the Little Ice Age (LIA), especially during the phases of solar minima. Our finding provides novel quantitative support to the previous studies suggesting relatively wet conditions during the LIA in the westerly dominated regions of central Asia and northern Tibetan Plateau and infers a substantial increase in regional winter-spring precipitation should the predicted grand solar minimum in the forthcoming decades become a reality. |
关键词 | Alkenone Precipitation Reconstructions Little Ice Age Qaidam Basin Lake Gahai |
DOI | 10.1016/j.quascirev.2018.09.022 |
关键词[WOS] | LONG-CHAIN ALKENONES ; ATMOSPHERIC CARBON-DIOXIDE ; ARID CENTRAL-ASIA ; TREE-RING RECORD ; LATE HOLOCENE ; UNSATURATED ALKENONE ; NORTHWESTERN CHINA ; EMILIANIA-HUXLEYI ; SOLAR IRRADIANCE ; LAST MILLENNIUM |
收录类别 | SCI |
语种 | 英语 |
资助项目 | National Natural Science Foundation of China[41573113] ; National Natural Science Foundation of China[41602193] ; National Natural Science Foundation of China[41702187] ; State Key Laboratory of Loess and Quaternary Geology in the Institute of Earth Environment of the Chinese Academy of Sciences[SKLLQGPY1704] ; U.S. National Science Foundation[ATM-0902805] ; U.S. National Science Foundation[EAR-1122749] ; U.S. National Science Foundation[PLR-1503846] ; U.S. National Science Foundation[EAR-1502455] ; U.S. National Science Foundation[EAR-1762431] |
WOS研究方向 | Physical Geography ; Geology |
项目资助者 | National Natural Science Foundation of China ; State Key Laboratory of Loess and Quaternary Geology in the Institute of Earth Environment of the Chinese Academy of Sciences ; U.S. National Science Foundation |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS记录号 | WOS:000448493900003 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/9582 |
专题 | 黄土与第四纪地质国家重点实验室(2010~) |
通讯作者 | Huang, YS (Huang, Yongsong)[ 1,2 ] |
作者单位 | 1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China; 2.Department of Earth, Environmental and Planetary Sciences, Brown University, Providence, RI02912, USA; 3.Department of Geology, University at Buffalo, New York, USA |
推荐引用方式 GB/T 7714 | Zhao, JJ ,Thomas, EK ,Yao, Y ,et al. Major increase in winter and spring precipitation during the Little Ice Age in the westerly dominated northern Qinghai-Tibetan Plateau[J]. QUATERNARY SCIENCE REVIEWS,2018,199:30-40. |
APA | Zhao, JJ ,Thomas, EK ,Yao, Y ,DeAraujo, J ,&Huang, YS .(2018).Major increase in winter and spring precipitation during the Little Ice Age in the westerly dominated northern Qinghai-Tibetan Plateau.QUATERNARY SCIENCE REVIEWS,199,30-40. |
MLA | Zhao, JJ ,et al."Major increase in winter and spring precipitation during the Little Ice Age in the westerly dominated northern Qinghai-Tibetan Plateau".QUATERNARY SCIENCE REVIEWS 199(2018):30-40. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
1-s2.0-S027737911830(3038KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 请求全文 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论