DOI: 10.1002/2015GL065049
论文题名: Changes in the relationship in the SST variability between the tropical Pacific and the North Pacific across the 1998/1999 regime shift
作者: Jo H.-S. ; Yeh S.-W. ; Lee S.-K.
刊名: Geophysical Research Letters
ISSN: 0094-9388
EISSN: 1944-9119
出版年: 2015
卷: 42, 期: 17 起始页码: 7171
结束页码: 7178
语种: 英语
英文关键词: 1998/1999 regime
; SST variability
; tropical SST
Scopus关键词: Atmospheric temperature
; Modulation
; Surface waters
; Tropics
; 1998/1999 regime
; Convective heating
; Eastern north pacific
; Eastern tropical pacific
; Negative correlation
; Sea surface temperature (SST)
; SST variability
; Tropical SST
; Oceanography
; atmospheric modeling
; convection
; correlation
; hypothesis testing
; low pressure
; prediction
; sea surface temperature
; spatiotemporal analysis
; Pacific Ocean
; Pacific Ocean (North)
; Pacific Ocean (Tropical)
英文摘要: This study shows that sea surface temperature (SST) variability in the central to eastern tropical Pacific has a strong negative correlation with that of the central to eastern North Pacific in the boreal winter after the 1998/1999 regime shift. This phenomenon is in contrast to before the 1998/1999 regime shift. The anomalous Aleutian low pressure associated with the tropical SST forcing became stronger, and its center shifted to the south and to the west after 1998/1999. Such a modulation caused the change in the North Pacific SST response. This also resulted in a close relationship between the tropical Pacific and North Pacific SST variability. The modulation of the Aleutian low pressure is primarily due to the westward shift in the location of the tropical convective heating around the dateline, which occurred during 1998/1999. The results of simple atmospheric model experiments support this hypothesis that the shift in the tropical convective heating to the west is responsible for the modulation of the Aleutian low pressure and the associated change in the relationship of the SST variability between the tropical Pacific and North Pacific. These results imply that the seasonal predictability of the North Pacific SST has increased since 1998/1999 due to its increased correlation with the tropical Pacific SST variability. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84943363340&doi=10.1002%2f2015GL065049&partnerID=40&md5=4004b16f7e045a53b3cce308c700a8b9
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9003
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Marine Sciences and Convergent Technology, Hanyang University, ERICA, Ansan, South Korea
Recommended Citation:
Jo H.-S.,Yeh S.-W.,Lee S.-K.. Changes in the relationship in the SST variability between the tropical Pacific and the North Pacific across the 1998/1999 regime shift[J]. Geophysical Research Letters,2015-01-01,42(17).