Climate Change Data Portal
| DOI | 10.1073/pnas.2321645121 |
| Hydroclimatic changes on multiple timescales since 7800 y BP in the winter precipitation-dominated Central Asia | |
| 发表日期 | 2024 |
| ISSN | 0027-8424 |
| EISSN | 1091-6490 |
| 起始页码 | 121 |
| 结束页码 | 14 |
| 卷号 | 121期号:14 |
| 英文摘要 | Central Asia (CA) is one of the world's most significant arid regions, which is markedly impacted by global warming. A better understanding of the dynamical processes governing its Holocene climate variability is critical for a better understanding of possible future impacts of climate change in the region. To date, most of the existing CA paleoclimate records are from the summer precipitation-dominated eastern CA (ECA), with few records from the winter precipitation-dominated western CA (WCA). Here, we present a precisely dated (similar to 6 parts per thousand) and highly resolved (<4-y) record of hydroclimatic variations from the WCA covering the period between 7,774 and 656 y BP. Utilizing multiple proxies (delta O-18, delta C-13, and Sr/Ca) derived from a stalagmite from the Fergana Valley, Kyrgyzstan, we reveal a long-term drying trend in WCA, which is in contrast with the wetting trend in ECA. We propose that different responses of winter and summer westerly jets to seasonal solar insolation over the past 8,000 y may have resulted in an antiphased precipitation relationship between the WCA and ECA. Our data contain dominant quasiperiodicities of 1,400, 50 to 70, and 20 to 30 y, indicating close connections between the WCA climate and the North Atlantic. We further identified a series of droughts and pluvials on centennial-to-decadal timescales, which may have influenced regional societies and trans-Eurasian culture exchanges during historical and prehistorical times. |
| 英文关键词 | westerlies; stalagmite; Holocene; winter insolation; Central Asia |
| 语种 | 英语 |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| WOS记录号 | WOS:001207675200001 |
| 来源期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/300990 |
| 作者单位 | Chinese Academy of Sciences; Institute of Earth Environment, CAS; Xi'an Jiaotong University; Chang'an University; National Academy of Sciences of the Kyrgyz Republic (NAS KR); Tianjin University; University of Minnesota System; University of Minnesota Twin Cities; Beijing Normal University |
| 推荐引用方式 GB/T 7714 | . Hydroclimatic changes on multiple timescales since 7800 y BP in the winter precipitation-dominated Central Asia[J],2024,121(14). |
| APA | (2024).Hydroclimatic changes on multiple timescales since 7800 y BP in the winter precipitation-dominated Central Asia.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,121(14). |
| MLA | "Hydroclimatic changes on multiple timescales since 7800 y BP in the winter precipitation-dominated Central Asia".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 121.14(2024). |
| 条目包含的文件 | 条目无相关文件。 | |||||
| 个性服务 |
| 推荐该条目 |
| 保存到收藏夹 |
| 导出为Endnote文件 |
| 谷歌学术 |
| 谷歌学术中相似的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
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。
