DOI: 10.1175/JCLI-D-12-00809.1
Scopus记录号: 2-s2.0-84884964803
论文题名: North-central pacific tropical cyclones: Impacts of El Niño-Southern Oscillation and the Madden-Julian Oscillation
作者: Klotzbach P.J. ; Blake E.S.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 19 起始页码: 7720
结束页码: 7733
语种: 英语
Scopus关键词: ENSO
; Madden-Julian oscillation
; North Pacific Ocean
; Rapid intensification
; Sea surface temperature (SST)
; Tropical cyclone
; Tropical cyclone activity
; Vertical wind shear
; Atmospheric pressure
; Climatology
; Sea level
; Hurricanes
; air-sea interaction
; El Nino-Southern Oscillation
; Madden-Julian oscillation
; sea level pressure
; tropical cyclone
; wind shear
; Pacific Ocean
; Pacific Ocean (North)
英文摘要: Both El Niño-Southern Oscillation (ENSO) and the Madden-Julian oscillation (MJO) have been documented in previous research to impact tropical cyclone (TC) activity around the globe. This study examines the relationship of each mode individually along with a combined index on tropical cyclone activity in the north-central Pacific. Approximately twice as many tropical cyclones form in the north-central Pacific in El Niño years compared with La Niña years. These differences are attributed to a variety of factors, including warmer sea surface temperatures, lower sea level pressures, increased midlevel moisture, and anomalous midlevel ascent in El Niño years. When the convectively enhanced phase of the MJO is located over the eastern and central tropical Pacific, the north-central Pacific tends to have more tropical cyclone activity, likely because of reduced vertical wind shear, lower sea level pressures, and increased vertical motion. The convectively enhanced phase of the MJO is also responsible for most of the TCs that undergo rapid intensification in the north-central Pacific. A combined MJO-ENSO index that is primarily associated with anomalous rising motion over the tropical eastern Pacific has an even stronger relationship with north-central Pacific TCs, as well as rapid intensification, than either individually. © 2013 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51637
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Atmospheric Science, Colorado State University, Fort Collins, CO 80523, United States; National Hurricane Center, National Oceanic and Atmospheric Administration, Miami, FL, United States
Recommended Citation:
Klotzbach P.J.,Blake E.S.. North-central pacific tropical cyclones: Impacts of El Niño-Southern Oscillation and the Madden-Julian Oscillation[J]. Journal of Climate,2013-01-01,26(19)