Transient simulation of orbital-scale precipitation variation in monsoonal East Asia and arid central Asia during the last 150 ka | |
Li, XZ (Li, Xinzhou)[ 1 ]; Liu, XD (Liu, Xiaodong)[ 1,2 ]; Qiu, LJ (Qiu, Linjing)[ 1 ]; An, ZS (An, Zhisheng)[ 1 ]; Yin, ZY (Yin, Zhi-Yong)[ 3 ] | |
2013-07-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
卷号 | 118期号:14页码:7481-7488 |
文章类型 | 期刊论文 |
摘要 | A long-term transient simulation is conducted using the Community Climate System Model version 3 and the orbital acceleration technique to analyze the impact of insolation change caused by the Earth's orbital forcing on precipitation in the monsoonal East Asia (EA) and arid central Asia (CA) over the past 150 ka. Our results show that annual precipitation in both EA and CA has strong signals of the 20 ka precessional cycles and varies in phase with the Northern Hemisphere (NH) summer insolation. Similar characteristics can also be observed from previously published oxygen isotope records of stalagmites near EA and CA. Composite analyses based on seven precessional cycles suggest that the increase (decrease) in the NH summer (winter) insolation enhances EA (CA) summer (winter) precipitation by modulation of the Asian monsoon (westerly) circulation in summer (winter). When the precession-induced NH summer insolation increases, the Asian summer monsoon circulation is enhanced and EA precipitation increases significantly. Meanwhile, the increase in the summer insolation at the precessional scale is accompanied by a decrease in the winter insolation, which causes dramatic cooling of the troposphere in the lower latitudes. Consequently, the CA winter precipitation increases due to the changes in the temperature gradient and the westerly circulation. Therefore, the responses of the Asian monsoon and westerly circulation to summer and winter insolation variations induced by the precessional cycles determine precipitation in the respective rainy seasons and are the primary cause leading to the synchronous variation patterns of annual precipitation in EA and CA at the orbital scale. |
DOI | 10.1002/jgrd.50611 |
收录类别 | SCI |
语种 | 英语 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/9942 |
专题 | 古环境研究室 |
通讯作者 | Liu, XD (Liu, Xiaodong)[ 1,2 ] |
作者单位 | 1.State Key Laboratory of Loess and Quaternary Geology, Institute ofEarth Environment, Chinese Academy of Sciences, Xi’an, China; 2.School of Human Settlements and Civil Engineering, Xi’an JiaotongUniversity, Xi’an, China; 3.Department of Marine Science and Environmental Studies, Universityof San Diego, San Diego, California, USA |
推荐引用方式 GB/T 7714 | Li, XZ ,Liu, XD ,Qiu, LJ ,et al. Transient simulation of orbital-scale precipitation variation in monsoonal East Asia and arid central Asia during the last 150 ka[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2013,118(14):7481-7488. |
APA | Li, XZ ,Liu, XD ,Qiu, LJ ,An, ZS ,&Yin, ZY .(2013).Transient simulation of orbital-scale precipitation variation in monsoonal East Asia and arid central Asia during the last 150 ka.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,118(14),7481-7488. |
MLA | Li, XZ ,et al."Transient simulation of orbital-scale precipitation variation in monsoonal East Asia and arid central Asia during the last 150 ka".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 118.14(2013):7481-7488. |
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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Transient simulation(2278KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 请求全文 |
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