DOI: 10.1175/JCLI-D-15-0556.1
Scopus记录号: 2-s2.0-84971384052
论文题名: ERA-20C: An atmospheric reanalysis of the twentieth century
作者: Poli P. ; Hersbach H. ; Dee D.P. ; Berrisford P. ; Simmons A.J. ; Vitart F. ; Laloyaux P. ; Tan D.G.H. ; Peubey C. ; Thépaut J.-N. ; Trémolet Y. ; Hólm E.V. ; Bonavita M. ; Isaksen L. ; Fisher M.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2016
卷: 29, 期: 11 起始页码: 4083
结束页码: 4097
语种: 英语
Scopus关键词: Atmospheric composition
; Climatology
; Earth atmosphere
; Ice control
; Oceanography
; Sea ice
; Surface waters
; Atmospheric general circulation models
; Atmospheric reanalysis
; Data assimilation
; Feed back information
; Interannual variability
; Reanalysis
; Sea surface temperature (SST)
; Variability
; Atmospheric temperature
; annual variation
; climate modeling
; climate prediction
; data assimilation
; ensemble forecasting
; Madden-Julian oscillation
; numerical model
; trend analysis
; twentieth century
; weather forecasting
英文摘要: The ECMWF twentieth century reanalysis (ERA-20C; 1900-2010) assimilates surface pressure and marine wind observations. The reanalysis is single-member, and the background errors are spatiotemporally varying, derived from an ensemble. The atmospheric general circulation model uses the same configuration as the control member of the ERA-20CM ensemble, forced by observationally based analyses of sea surface temperature, sea ice cover, atmospheric composition changes, and solar forcing. The resulting climate trend estimations resemble ERA-20CM for temperature and the water cycle. The ERA-20C water cycle features stable precipitation minus evaporation global averages and no spurious jumps or trends. The assimilation of observations adds realism on synoptic time scales as compared to ERA-20CM in regions that are sufficiently well observed. Comparing to nighttime ship observations, ERA-20C air temperatures are 1 K colder. Generally, the synoptic quality of the product and the agreement in terms of climate indices with other products improve with the availability of observations. The MJO mean amplitude in ERA-20C is larger than in 20CR version 2c throughout the century, and in agreement with other reanalyses such as JRA-55. A novelty in ERA-20C is the availability of observation feedback information. As shown, this information can help assess the product's quality on selected time scales and regions. © 2016 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49904
Appears in Collections: 气候变化事实与影响
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作者单位: European Centre for Medium-Range Weather Forecasts, Reading, United Kingdom; National Centre for Atmospheric Science, Reading, United Kingdom; Centre de Météorologie Marine, Brest, France
Recommended Citation:
Poli P.,Hersbach H.,Dee D.P.,et al. ERA-20C: An atmospheric reanalysis of the twentieth century[J]. Journal of Climate,2016-01-01,29(11)