DOI: 10.1175/JCLI-D-13-00259.1
Scopus记录号: 2-s2.0-84897647344
论文题名: Projected Tasman Sea extremes in sea surface temperature through the twenty-first century
作者: Oliver E.C.J. ; Wotherspoon S.J. ; Chamberlain M.A. ; Holbrook N.J.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 5 起始页码: 1980
结束页码: 1998
语种: 英语
Scopus关键词: Bayesian hierarchical model
; Climate projection
; Emissions scenarios
; Extreme value distributions
; Global climate model
; Ocean climate models
; Sea surface temperature (SST)
; South-eastern Australia
; Atmospheric temperature
; Climate change
; Climate models
; Hierarchical systems
; Oceanography
; Bayesian analysis
; climate modeling
; climate variation
; global climate
; marine atmosphere
; sea level
; sea surface temperature
; twenty first century
; Australia
; Pacific Ocean
; Tasman Sea
; Anthozoa
英文摘要: Ocean climate extremes have received little treatment in the literature, aside from coastal sea level and temperatures affecting coral bleaching. Further, it is notable that extremes (e.g., temperature and precipitation) are typically not well represented in global climate models. Here, the authors improve dynamically downscaled ocean climate model estimates of sea surface temperature (SST) extremes in the Tasman Sea off southeastern Australia using satellite remotely sensed observed extreme SSTs and the simulated marine climate of the 1990s. This is achieved using a Bayesian hierarchical model in which the parameters of an extreme value distribution are modeled by linear regression onto the key marine climate variables (e.g., mean SST, SST variance, etc.). The authors then apply this fitted model, essentially a form of bias correction, to the marine climate projections for the 2060s under an A1B emissions scenario. They show that the extreme SSTs are projected to increase in the Tasman Sea in a nonuniform way. The 50-yr return period extreme SSTs are projected to increase by up to 2°C over the entire domain and by up to 4°C in a hotspot located in the central western portion of the Tasman Sea, centered at a latitude ~500km farther south than the projected change in mean SST. The authors show that there is a greater than 50% chance that annual maximum SSTs will increase by at least 2°C in this hotspot and that this change is significantly different than that which might be expected because of random chance in an unchanged climate. © 2014 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50928
Appears in Collections: 气候变化事实与影响
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作者单位: Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia; Australian Research Council Centre of Excellence for Climate System Science, Hobart, TAS, Australia; CSIRO Marine and Atmospheric Research, Hobart, TAS, Australia
Recommended Citation:
Oliver E.C.J.,Wotherspoon S.J.,Chamberlain M.A.,et al. Projected Tasman Sea extremes in sea surface temperature through the twenty-first century[J]. Journal of Climate,2014-01-01,27(5)