期刊
NATURE COMMUNICATIONS
卷 5, 期 -, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/ncomms4701
关键词
-
资金
- National Natural Science Foundation of China [41171022]
- Japan Society for the Promotion of Science Postdoctoral Fellowship
- MEXT SOUSEI program
- US National Science Foundation [EF-01241286, EAR-0902895]
- Grants-in-Aid for Scientific Research [11F01369, 26289160] Funding Source: KAKEN
- Direct For Biological Sciences
- Emerging Frontiers [1241286] Funding Source: National Science Foundation
- Div Atmospheric & Geospace Sciences
- Directorate For Geosciences [1049238] Funding Source: National Science Foundation
The Pacific North American (PNA) teleconnection has a strong influence on North American climate. Instrumental records and century-scale reconstructions indicate an accelerating tendency towards the positive PNA state since the mid-1850s, but much less is known about long-term PNA variability. Here we reconstruct PNA-like climate variability during the mid-and late Holocene using paired oxygen isotope records from two regions in North America with robust, anticorrelated isotopic response to the modern PNA. We identify mean states of more negative and positive PNA-like climate during the mid-and late Holocene, respectively. Superimposed on the secular change between states is a robust, quasi-200-year oscillation, which we associate with the de Vries solar cycle. These findings suggest the persistence of PNA-like climate variability throughout the mid-and late Holocene, provide evidence for modulation of PNA over multiple timescales and may help researchers de-convolve PNA pattern variation from other factors reflected in palaeorecords.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据