DOI: 10.1175/JCLI-D-14-00507.1
Scopus记录号: 2-s2.0-84934928939
论文题名: Three types of Indian Ocean dipoles
作者: Guo F. ; Liu Q. ; Sun S. ; Yang J.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期: 8 起始页码: 3073
结束页码: 3092
语种: 英语
Scopus关键词: Atmospheric pressure
; Atmospheric temperature
; Climate models
; Locks (fasteners)
; Mechanical waves
; Nickel
; Ocean currents
; Surface waters
; Community climate system model
; Coupled Model Intercomparison Project
; Cross-equatorial flow
; Historical simulation
; Indian Ocean dipole
; Sea Surface Temperature gradients
; Southern oscillation
; Tropical Indian ocean
; Oceanography
英文摘要: Using observational data and phase 5 of the Coupled Model Intercomparison Project (CMIP5) model outputs [the preindustrial (PI) control run of the Community Climate System Model, version 4 (CCSM4) and historical simulations of 17 CMIP5 models], Indian Ocean dipoles (IODs) with a peak in fall are categorized into three types. The first type is closely related to the development phase of El Niño/La Niña. The second type evolves from the basinwide warming (cooling) in the tropical Indian Ocean (IO), usually occurring in the year following El Niño (La Niña). The third type is independent of El Niño and La Niña. The dominant trigger condition for the first (third) type of IOD is the anomalous Walker circulation (anomalous cross-equatorial flow); the anomalous zonal sea surface temperature (SST) gradient in the tropical IO is the trigger condition for the second type. The occurrence of anomalous ocean Rossby waves during the forming stage of IO basinwide mode and their effect on SST in the southwestern IO during winter and spring are critical for early development of the second type of IOD. Although most models simulate a stronger El Niño-Southern Oscillation and IOD compared to the observations, this does not influence the phase-locking and classification of the IOD peaking in the fall. © 2015 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50532
Appears in Collections: 气候变化事实与影响
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作者单位: Physical Oceanography Lab./Qingdao Collaborative Innovation Center of Marine Science and Technology, Key Laboratory of Ocean-Atmosphere Interaction and Climate in Universities of Shandong, Ocean University of China, Qingdao, China; NOAA/Earth System Research Laboratory, Boulder, CO, United States; Key Laboratory of Meteorological Disaster Preventing and Reducing in Ningxia, Ningxia Institute of Meteorological Science, Yinchuan, China
Recommended Citation:
Guo F.,Liu Q.,Sun S.,et al. Three types of Indian Ocean dipoles[J]. Journal of Climate,2015-01-01,28(8)