| DOI: | 10.1175/JCLI-D-17-0078.1
|
| Scopus记录号: | 2-s2.0-85043691286
|
| 论文题名: | Revisiting the ENSO-SSW relationship |
| 作者: | Song K.; Son S.-W.
|
| 刊名: | Journal of Climate
|
| ISSN: | 8948755
|
| 出版年: | 2018
|
| 卷: | 31, 期:6 | | 起始页码: | 2133
|
| 结束页码: | 2143
|
| 语种: | 英语
|
| 英文关键词: | ENSO
; Interannual variability
; Stratosphere
; Stratosphere-troposphere coupling
|
| Scopus关键词: | Atmospheric pressure
; Climatology
; Nickel
; Upper atmosphere
; Background winds
; ENSO
; Interannual variability
; Planetary scale
; Southern oscillation
; Stratosphere-troposphere coupling
; Stratospheric sudden warmings
; Wind reversals
; Nickel compounds
|
| 英文摘要: | Stratospheric sudden warming (SSW) events exhibit pronounced interannual variability. Based on zonal wind reversals at 60°N and 10 hPa, it has been suggested that SSW events occur more preferentially during El Niño-Southern Oscillation (ENSO) winters (both El Niño and La Niña winters) than during ENSO-neutral winters. This relationship is reevaluated here by considering seven different SSW definitions. For all definitions, SSW events are detected more frequently during El Niño winters than during ENSO-neutral winters, in agreement with a strengthened planetary-scale wave activity. However, such a systematic relationship is not found during La Niña winters. While three SSW definitions, including the wind-reversal definition, show a higher SSW frequency during La Niña winters than during ENSO-neutral winters, other definitions show no difference or even lower SSW frequency during La Niña winters. This result, which is qualitatively insensitive to the choice of reanalysis datasets, ENSO indices, and SST datasets, indicates that the reported ENSO-SSW relationship is dependent on the details of the SSW definition. This result is interpreted in terms of different background wind, latitudinal extent of wind reversal, and planetary-scale wave activity during El Niño and La Niña winter SSW events. © 2018 American Meteorological Society. |
| Citation statistics: |
|
| 资源类型: | 期刊论文
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/111647
|
| Appears in Collections: | 气候减缓与适应
|
|
There are no files associated with this item.
|
|
作者单位: | School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea
|
| Recommended Citation: | |
Song K.,Son S.-W.. Revisiting the ENSO-SSW relationship[J]. Journal of Climate,2018-01-01,31(6)
|
|
|