Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL088238 |
1300 years of variability in the position of the South Pacific Convergence Zone (SPCZ) | |
P. A. Higgins; J. G. Palmer; C. S. M. Turney; M. S. Andersen; E. R. Cook | |
2020-08-17 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | The South Pacific Convergence Zone (SPCZ) is the largest rain belt in the Southern Hemisphere and a key driver of precipitation variability, impacting South Pacific island communities. Our millennial‐long reconstruction is based on a trans‐Pacific tree‐ring network, containing chronologies sensitive to changes in the SPCZ because of its pervasive nature, spatial extent, and link to the El Niño‐Southern Oscillation (ENSO). The reconstruction explains 58% of variance in the instrumental SPCZ index from 1911‐1998. ENSO cycles are identified throughout the reconstruction period. Multidecadal periodicities wax and wane, coinciding with a sustained eastward shift during the Medieval Climate Anomaly (~1000‐1200 CE). We find large volcanic eruptions increased the tendency for the SPCZ to be displaced eastwards. The reconstruction helps improve our understanding of past hydroclimatic behavior in the southwest Pacific and can be used to validate general circulation model projections for Pacific Island communities and the wider region in the twenty‐first century. |
领域 | 气候变化 |
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/291177 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | P. A. Higgins,J. G. Palmer,C. S. M. Turney,et al. 1300 years of variability in the position of the South Pacific Convergence Zone (SPCZ)[J]. Geophysical Research Letters,2020. |
APA | P. A. Higgins,J. G. Palmer,C. S. M. Turney,M. S. Andersen,&E. R. Cook.(2020).1300 years of variability in the position of the South Pacific Convergence Zone (SPCZ).Geophysical Research Letters. |
MLA | P. A. Higgins,et al."1300 years of variability in the position of the South Pacific Convergence Zone (SPCZ)".Geophysical Research Letters (2020). |
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