DOI: 10.1175/JCLI-D-13-00437.1
Scopus记录号: 2-s2.0-84898036185
论文题名: Cold tongue and warm pool ENSO Events in CMIP5: Mean state and future projections
作者: Taschetto A.S. ; Gupta A.S. ; Jourdain N.C. ; Santoso A. ; Ummenhofer C.C. ; England M.H.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 8 起始页码: 2861
结束页码: 2885
语种: 英语
Scopus关键词: Atmospheric pressure
; Lakes
; Coupled Model Intercomparison Project
; Equatorial winds
; Future projections
; Sea surface temperature anomalies
; Systematic bias
; Temporal evolution
; Western Pacific
; Zonal currents
; Climate models
; atmosphere-ocean system
; atmospheric forcing
; El Nino-Southern Oscillation
; general circulation model
; sea surface temperature
; temperature anomaly
英文摘要: The representation of the El Niño-Southern Oscillation (ENSO) under historical forcing and future projections is analyzed in 34 models from the Coupled Model Intercomparison Project phase 5 (CMIP5). Most models realistically simulate the observed intensity and location of maximum sea surface temperature (SST) anomalies during ENSO events. However, there exist systematic biases in the westward extent of ENSOrelated SST anomalies, driven by unrealistic westward displacement and enhancement of the equatorial wind stress in the western Pacific. Almost all CMIP5 models capture the observed asymmetry in magnitude between the warm and cold events (i.e., El Niños are stronger than La Niñas) and between the two types of El Niños: that is, cold tongue (CT) El Niños are stronger than warm pool (WP) El Niños. However, most models fail to reproduce the asymmetry between the two types of La Niñas, with CT stronger thanWPevents, which is opposite to observations. Most models capture the observed peak in ENSO amplitude around December; however, the seasonal evolution of ENSO has a large range of behavior across the models. The CMIP5 models generally reproduce the duration of CT El Niños but have biases in the evolution of the other types of events. The evolution of WP El Niños suggests that the decay of this event occurs through heat content discharge in the models rather than the advection of SST via anomalous zonal currents, as seems to occur in observations. No consistent changes are seen across the models in the location and magnitude of maximum SST anomalies, frequency, or temporal evolution of these events in a warmer world. © 2014 American Meteorological Society. 资助项目: ARC, Australian Research Council
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51213
Appears in Collections: 气候变化事实与影响
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作者单位: Climate Change Research Centre, ARC Centre of Excellence for Climate System Science, University of New South Wales, Sydney, NSW 2052, Australia; Department of Physical Oceanography, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
Recommended Citation:
Taschetto A.S.,Gupta A.S.,Jourdain N.C.,et al. Cold tongue and warm pool ENSO Events in CMIP5: Mean state and future projections[J]. Journal of Climate,2014-01-01,27(8)