ENSO-Like Pacing of the Asian Summer Monsoon during the Early Holocene
ENSO-Like Pacing of the Asian Summer Monsoon during the Early Holocene
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全新世早期亚洲夏季风的类似 ENSO 的节奏
DOI：
10.1007/s13351-020-9079-9
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发表时间：
2020-04
影响因子：
3.2
通讯作者：
Kong Xinggong
中科院分区：
文献类型：
--
作者：
Shao Xiaohua;Wang Tao;Wang Yongjin;Cheng Hai;Zhao Kan;Kong Xinggong
本文报道了长江流域娄山关洞石笋氧同位素（δ~(18)O） ~(230) th测年记录。δ~(18)O记录作为亚洲夏季风（ASM）强度的代表，提供了全新世早期具有明显百年尺度变化的亚洲夏季风历史。光谱功率分析显示，在10.2 - 9.1 ka BP之间（在现在之前，这里的“现在”定义为公元1950年）有一个重要的大约200年的周期，具有全球意义，可能是由太阳活动的Suess或de Vries周期造成的。在此，我们探讨了太阳活动与ASM之间关系的物理机制。通过对这一周期的交叉小波分析，我们观察到南亚暖流与厄尔尼诺-南方涛动（ENSO）之间有很强的一致性。研究表明，强（弱）ASM状态对应暖（冷）ENSO，这与现代气象观测结果一致，但与以往在远离梅雨雨带地区的研究结果存在差异。我们认为，ASM的百年波动是由太阳活动强迫的基本特征，而ENSO变率是一个中介。在全新世早期，ENSO与ASM的关系在百年尺度上表现出空间异质性，这与观测到的现代ASM年际变化更直接相似。
We present a ~(230)Th-dated stalagmite oxygen isotope (δ~(18)O) record from Loushanguan Cave in the Yangtze River valley, China. The δ~(18)O record, if viewed as a proxy of the Asian summer monsoon (ASM) intensity, provides an ASM history for the early Holocene with clear centennial-scale variability. A significant approximately 200-yr cycle between 10.2 and 9.1 ka BP (before present, where “present” is defined as the year AD 1950), as revealed by spectral power analyses, is of global significance and is probably forced by the Suess or de Vries cycle of solar activity. Here, we explore a physical mechanism to explain the relationship between the solar activity and the ASM. A strong coherence between the ASM and El Nino–Southern Oscillation (ENSO) has been observed by performing crosswavelet analyses on this cycle. Our study suggests that a strong (weak) ASM state corresponds to a warm (cold) ENSO, which is consistent with modern meteorological observations but contrasts with previous studies on regions far from the Meiyu rainbelt. We argue that the centennial fluctuations of the ASM are a fundamental characteristic forced by the solar activity, with the ENSO variability as a mediator. The relationship between ENSO and the ASM displayed spatial heterogeneity on the centennial scale during the early Holocene, which is a more direct analogue to the observed modern interannual variability of the ASM.
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影响因子：
2
作者：
D. S. Pai
通讯作者：
D. S. Pai
揭示厄尔尼诺现象对东亚季风和长江夏季洪水的影响
影响因子：
5.2
作者：
Zhang Wenjun;Jin Fei Fei;Stuecker Malte F;Wittenberg Andrew T;Timmermann Axel;Ren Hong Li;Kug Jong Seong;Cai Wenju;Cane Mark
通讯作者：
Cane Mark
中国西南部双石笋记录推断的多尺度全新世亚洲季风变化
影响因子：
2.3
作者：
Shao, Qingfeng;Deng, Chao;Zhang, Zhenqiu;Wang, Quan
通讯作者：
Wang, Quan
亚洲夏季季风降水时空格局对全新世日照变化的响应：模型数据综合
影响因子：
4
作者：
Wonsun Park;Mojib Latif;Vyacheslav Khon;Xiaojian Zhang
通讯作者：
Xiaojian Zhang
影响因子：
4
作者：
N. K. Larsen;K. Kjær;J. Olsen;S. Funder;K. Kjeldsen;N. Nørgaard‐Pedersen
通讯作者：
N. K. Larsen;K. Kjær;J. Olsen;S. Funder;K. Kjeldsen;N. Nørgaard‐Pedersen