DOI: 10.1175/JCLI-D-11-00579.1
Scopus记录号: 2-s2.0-84867669763
论文题名: The effect of a well-resolved stratosphere on surface climate: Differences between CMIP5 simulations with high and low top versions of the met office climate model
作者: Hardiman S.C. ; Butchart N. ; Hinton T.J. ; Osprey S.M. ; Gray L.J.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期: 20 起始页码: 7083
结束页码: 7099
语种: 英语
Scopus关键词: Annular mode
; EL Nino
; General circulation model
; North Atlantic oscillations
; Planetary Waves
; Atmospheric pressure
; Climate models
; Climatology
; Computer simulation
; Nickel compounds
; Sea ice
; Weather forecasting
; Upper atmosphere
; Arctic Oscillation
; climate modeling
; El Nino-Southern Oscillation
; general circulation model
; North Atlantic Oscillation
; planetary wave
; stratosphere
; teleconnection
英文摘要: The importance of using a general circulation model that includes a well-resolved stratosphere for climate simulations, and particularly the influence this has on surface climate, is investigated. High top model sim- ulations are run with the Met Office Unified Model for the Coupled Model Intercomparison Project Phase 5 (CMIP5). These simulations are compared to equivalent simulations run using a low top model differing only in vertical extent and vertical resolution above 15 km. The period 1960-2002 is analyzed and compared to observations and the European Centre for Medium-Range Weather Forecasts (ECMWF) reanalysis dataset. Long-term climatology, variability, and trends in surface temperature and sea ice, along with the variability of the annular mode index, are found to be insensitive to the addition of a well-resolved stratosphere. The inclusion of a well-resolved stratosphere, however, does improve the impact of atmospheric teleconnections on surface climate, in particular the response to El Niño-Southern Oscillation, the quasi-biennial oscillation, and midwinter stratospheric sudden warmings (i.e., zonal mean wind reversals in the middle stratosphere). Thus, including a well-represented stratosphere could improve climate simulation on intraseasonal to in- terannual time scales. © 2012 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52205
Appears in Collections: 气候变化事实与影响
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作者单位: Met Office Hadley Centre, Exeter, Devon, United Kingdom; National Centre for Atmospheric Science, University of Oxford, Oxford, United Kingdom
Recommended Citation:
Hardiman S.C.,Butchart N.,Hinton T.J.,et al. The effect of a well-resolved stratosphere on surface climate: Differences between CMIP5 simulations with high and low top versions of the met office climate model[J]. Journal of Climate,2012-01-01,25(20)