Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-17-0319.1 |
How Would the Twenty-First-Century Warming Influence Pacific Decadal Variability and Its Connection to North American Rainfall: Assessment Based on a Revised Procedure for the IPO/PDO | |
Xu, Yangyang1; Hu, Aixue2 | |
2018-02-01 | |
发表期刊 | JOURNAL OF CLIMATE
![]() |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2018 |
卷号 | 31期号:4页码:1547-1563 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Decadal climate variability of sea surface temperature (SST) over the Pacific Ocean can be characterized by interdecadal Pacific oscillation (IPO) or Pacific decadal oscillation (PDO) based on empirical orthogonal function (EOF) analysis. Although the procedures to derive the IPO and PDO indices differ in their regional focuses and filtering methods to remove interannual variability, the IPO and PDO are highly correlated in time and are often used interchangeably. Studies have shown that the IPO and PDO conjointly (IPO/PDO for conciseness) play a vital role in modulating the pace of global warming. It is less clear, however, how externally forced global warming may, in turn, affect the IPO/PDO. One obstacle to revealing this effect is that the conventional definitions of the IPO/PDO fail to account for the spatial heterogeneity of the background warming trend, which causes the IPO/PDO to be conflated with the warming trend, especially for the twenty-first-century simulation when the forced change is likely to be more dominant. Using a large-ensemble simulation in the Community Earth System Model, version 1 (CESM1), it is shown here that a better practice of detrending prior to EOF analysis is to remove the local and nonlinear trend, defined as the ensemble-mean time series at each grid box (or simply as the quadratic fit of the local time series if such an ensemble is not available). The revised IPO/PDO index is purely indicative of internal decadal variability. In the twenty-first-century warmer climate, the IPO/PDO has a weaker amplitude in space, a higher frequency in time, and a muted impact on global and North American temperature and rainfall. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000425166600014 |
WOS关键词 | TROPICAL PACIFIC ; INTERDECADAL VARIABILITY ; CLIMATE ; ENSO ; INTENSIFICATION ; CIRCULATION ; OSCILLATION ; MONSOON ; IMPACT ; US |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/19409 |
专题 | 气候变化 |
作者单位 | 1.Texas A&M Univ, Dept Atmospher Sci, College Stn, TX 77843 USA; 2.Natl Ctr Atmospher Res, Climate & Global Dynam Lab, POB 3000, Boulder, CO 80307 USA |
推荐引用方式 GB/T 7714 | Xu, Yangyang,Hu, Aixue. How Would the Twenty-First-Century Warming Influence Pacific Decadal Variability and Its Connection to North American Rainfall: Assessment Based on a Revised Procedure for the IPO/PDO[J]. JOURNAL OF CLIMATE,2018,31(4):1547-1563. |
APA | Xu, Yangyang,&Hu, Aixue.(2018).How Would the Twenty-First-Century Warming Influence Pacific Decadal Variability and Its Connection to North American Rainfall: Assessment Based on a Revised Procedure for the IPO/PDO.JOURNAL OF CLIMATE,31(4),1547-1563. |
MLA | Xu, Yangyang,et al."How Would the Twenty-First-Century Warming Influence Pacific Decadal Variability and Its Connection to North American Rainfall: Assessment Based on a Revised Procedure for the IPO/PDO".JOURNAL OF CLIMATE 31.4(2018):1547-1563. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Xu, Yangyang]的文章 |
[Hu, Aixue]的文章 |
百度学术 |
百度学术中相似的文章 |
[Xu, Yangyang]的文章 |
[Hu, Aixue]的文章 |
必应学术 |
必应学术中相似的文章 |
[Xu, Yangyang]的文章 |
[Hu, Aixue]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
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