Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL076327 |
Disentangling Global Warming, Multidecadal Variability, and El Nino in Pacific Temperatures | |
Wills, Robert C.1; Schneider, Tapio2; Wallace, John M.1; Battisti, David S.1; Hartmann, Dennis L.1 | |
2018-03-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:5页码:2487-2496 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | A key challenge in climate science is to separate observed temperature changes into components due to internal variability and responses to external forcing. Extended integrations of forced and unforced climate models are often used for this purpose. Here we demonstrate a novel method to separate modes of internal variability from global warming based on differences in time scale and spatial pattern, without relying on climate models. We identify uncorrelated components of Pacific sea surface temperature variability due to global warming, the Pacific Decadal Oscillation (PDO), and the El Nino-Southern Oscillation (ENSO). Our results give statistical representations of PDO and ENSO that are consistent with their being separate processes, operating on different time scales, but are otherwise consistent with canonical definitions. We isolate the multidecadal variability of the PDO and find that it is confined to midlatitudes; tropical sea surface temperatures and their teleconnections mix in higher-frequency variability. This implies that midlatitude PDO anomalies are more persistent than previously thought. |
英文关键词 | Pacific Decadal Oscillation global warming El Nino internal variability |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000428402400041 |
WOS关键词 | SEA-SURFACE TEMPERATURE ; ENSO TELECONNECTIONS ; NORTH PACIFIC ; DECADAL OSCILLATION ; HIATUS ; ATLANTIC ; OCEAN ; SST ; CIRCULATION ; ROTATION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/28529 |
专题 | 气候变化 |
作者单位 | 1.Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA; 2.CALTECH, Environm Sci & Engn, Pasadena, CA 91125 USA |
推荐引用方式 GB/T 7714 | Wills, Robert C.,Schneider, Tapio,Wallace, John M.,et al. Disentangling Global Warming, Multidecadal Variability, and El Nino in Pacific Temperatures[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(5):2487-2496. |
APA | Wills, Robert C.,Schneider, Tapio,Wallace, John M.,Battisti, David S.,&Hartmann, Dennis L..(2018).Disentangling Global Warming, Multidecadal Variability, and El Nino in Pacific Temperatures.GEOPHYSICAL RESEARCH LETTERS,45(5),2487-2496. |
MLA | Wills, Robert C.,et al."Disentangling Global Warming, Multidecadal Variability, and El Nino in Pacific Temperatures".GEOPHYSICAL RESEARCH LETTERS 45.5(2018):2487-2496. |
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