Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-019-04827-9 |
Intra-seasonal and seasonal variability of the Northern Hemisphere extra-tropics | |
Stan, Cristiana1; Krishnamurthy, V.2 | |
2019-10-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 53页码:4821-4839 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The natural variability of the Northern Hemisphere extra-tropics is studied at seasonal and intra-seasonal time scales. Nonlinear oscillations in the extra-tropics are extracted from daily anomalies of 500-hPa geopotential height for the period 1979-2012 using a data-adaptive method. Three propagating oscillations with broad-band spectra centered at 120, 45, and 28 days are found. When combined, the oscillations explain up to 30% of the natural variability of the extra-tropics on the intra-seasonal to seasonal time scales. These oscillations share some features with the circumglobal wave guide and in some phases of their lifecycles they project onto the canonical teleconnection patterns. When used as predictors in a simple linear regression model with 2-m temperature as predictand, the mid-latitude oscillations extend the potential predictability of dependent variable to about 20 days. |
英文关键词 | Mid-latitude atmosphere Intraseasonal variability Atmospheric oscillations |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000489753900060 |
WOS关键词 | MADDEN-JULIAN OSCILLATION ; ATMOSPHERIC CIRCULATION ; GEOPOTENTIAL HEIGHT ; CLIMATE NOISE ; TELECONNECTIONS ; ATLANTIC ; WEATHER ; CONTINUUM ; DYNAMICS ; PATTERNS |
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/187249 |
专题 | 气候变化 |
作者单位 | 1.George Mason Univ, Dept Atmospher Ocean & Earth Sci, Fairfax, VA 22030 USA; 2.George Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA |
推荐引用方式 GB/T 7714 | Stan, Cristiana,Krishnamurthy, V.. Intra-seasonal and seasonal variability of the Northern Hemisphere extra-tropics[J]. CLIMATE DYNAMICS,2019,53:4821-4839. |
APA | Stan, Cristiana,&Krishnamurthy, V..(2019).Intra-seasonal and seasonal variability of the Northern Hemisphere extra-tropics.CLIMATE DYNAMICS,53,4821-4839. |
MLA | Stan, Cristiana,et al."Intra-seasonal and seasonal variability of the Northern Hemisphere extra-tropics".CLIMATE DYNAMICS 53(2019):4821-4839. |
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