Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL087504 |
Enhanced North American ENSO teleconnections during the Little Ice Age revealed by Paleoclimate Data Assimilation | |
Sylvia Dee; Yuko Okumura; Samantha Stevenson; Pedro Di Nezio | |
2020-07-08 | |
发表期刊 | Geophysical Research Letters
![]() |
出版年 | 2020 |
英文摘要 | Teleconnection rainfall over North America may be systematically altered by tropical Pacific mean state changes. Characterizing teleconnection changes to improve prediction requires many realizations of ENSO events, but 20th century data are temporally limited. To extend 20th century records, we evaluate ENSO events in a new last‐millennium paleoclimate data assimilation reconstruction to deduce how mean state changes affect the magnitude/extent of ENSO‐driven rainfall in the United States. Despite global cooling during the Little Ice Age, the central‐eastern tropical Pacific warms relative to the Medieval Climate Anomaly, shifting teleconnections eastward, and increasing rainfall anomalies in the Southwestern U.S. Teleconnections strengthen independently of ENSO amplitude; we thus suggest caution in using paleoclimate reconstructions of teleconnection rainfall as a proxy for ENSO amplitude. We demonstrate teleconnection rainfall is sensitive to the pattern of tropical Pacific mean SST changes, underscoring the importance of reducing uncertainties in future warming patterns in the tropical Pacific. |
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/283355 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Sylvia Dee,Yuko Okumura,Samantha Stevenson,et al. Enhanced North American ENSO teleconnections during the Little Ice Age revealed by Paleoclimate Data Assimilation[J]. Geophysical Research Letters,2020. |
APA | Sylvia Dee,Yuko Okumura,Samantha Stevenson,&Pedro Di Nezio.(2020).Enhanced North American ENSO teleconnections during the Little Ice Age revealed by Paleoclimate Data Assimilation.Geophysical Research Letters. |
MLA | Sylvia Dee,et al."Enhanced North American ENSO teleconnections during the Little Ice Age revealed by Paleoclimate Data Assimilation".Geophysical Research Letters (2020). |
条目包含的文件 | 条目无相关文件。 |
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