Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1610930114 |
Holocene ENSO-related cyclic storms recorded by magnetic minerals in speleothems of central China | |
Zongmin Zhu; Joshua M. Feinberg; Shucheng Xie; Mark D. Bourne; Chunju Huang; Chaoyong Hu; and Hai Cheng | |
2017-01-17 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
出版年 | 2017 |
卷号 | 114期号:5页码:852-857 |
英文摘要 | AbstractExtreme hydrologic events such as storms and floods have the potential to severely impact modern human society. However, the frequency of storms and their underlying mechanisms are limited by a paucity of suitable proxies, especially in inland areas. Here we present a record of speleothem magnetic minerals to reconstruct paleoprecipitation, including storms, in the eastern Asian monsoon area over the last 8.6 ky. The geophysical parameter IRMsoft-flux represents the flux of soil-derived magnetic minerals preserved in stalagmite HS4, which we correlate with rainfall amount and intensity. IRMsoft-flux exhibits relatively higher values before 6.7 ky and after 3.4 ky and lower values in the intervening period, consistent with regional hydrological changes observed in independent records. Abrupt enhancements in the flux of pedogenic magnetite in the stalagmite agree well with the timing of known regional paleofloods and with equatorial El Niño−Southern Oscillation (ENSO) patterns, documenting the occurrence of ENSO-related storms in the Holocene. Spectral power analyses reveal that the storms occur on a significant 500-y cycle, coincident with periodic solar activity and ENSO variance, showing that reinforced (subdued) storms in central China correspond to reduced (increased) solar activity and amplified (damped) ENSO. Thus, the magnetic minerals in speleothem HS4 preserve a record of the cyclic storms controlled by the coupled atmosphere−oceanic circulation driven by solar activity. |
英文关键词 | storms paleoprecipitation speleothems environmental magnetism paleoclimate |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
URL | 查看原文 |
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/204827 |
专题 | 地球科学 资源环境科学 气候变化 |
推荐引用方式 GB/T 7714 | Zongmin Zhu,Joshua M. Feinberg,Shucheng Xie,et al. Holocene ENSO-related cyclic storms recorded by magnetic minerals in speleothems of central China[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2017,114(5):852-857. |
APA | Zongmin Zhu.,Joshua M. Feinberg.,Shucheng Xie.,Mark D. Bourne.,Chunju Huang.,...&and Hai Cheng.(2017).Holocene ENSO-related cyclic storms recorded by magnetic minerals in speleothems of central China.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,114(5),852-857. |
MLA | Zongmin Zhu,et al."Holocene ENSO-related cyclic storms recorded by magnetic minerals in speleothems of central China".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 114.5(2017):852-857. |
条目包含的文件 | 条目无相关文件。 |
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