DOI: 10.1002/2017MS001132
Scopus记录号: 2-s2.0-85041672963
论文题名: EnOI-IAU Initialization Scheme Designed for Decadal Climate Prediction System IAP-DecPreS
作者: Wu B ; , Zhou T ; , Zheng F
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2018
卷: 10, 期: 2 起始页码: 342
结束页码: 356
语种: 英语
英文关键词: Climate models
; Climatology
; Forecasting
; Geophysics
; Surface waters
; Atlantic multidecadal oscillations
; Chinese Academy of Sciences
; Decadal predictions
; EnOI
; Inter-decadal variability
; Model initialization
; Pacific decadal oscillation
; Sea surface temperature (SST)
; Oceanography
英文摘要: A decadal climate prediction system named as IAP-DecPreS was constructed in the Institute of Atmospheric Physics (IAP), Chinese Academy of Sciences, based on a fully coupled model FGOALS-s2 and a newly developed initialization scheme, referred to as EnOI-IAU. In this paper, we introduce the design of the EnOI-IAU scheme, assess the accuracies of initialization integrations using the EnOI-IAU and preliminarily evaluate hindcast skill of the IAP-DecPreS. The EnOI-IAU scheme integrates two conventional assimilation approaches, ensemble optimal interpolation (EnOI) and incremental analysis update (IAU). The EnOI and IAU were applied to calculate analysis increments and incorporate them into the model, respectively. Three continuous initialization (INIT) runs were conducted for the period of 1950–2015, in which observational sea surface temperature (SST) from the HadISST1.1 and subsurface ocean temperature profiles from the EN4.1.1 data set were assimilated. Then nine-member 10 year long hindcast runs initiated from the INIT runs were conducted for each year in the period of 1960–2005. The accuracies of the INIT runs are evaluated from the following three aspects: upper 700 m ocean temperature, temporal evolution of SST anomalies, and dominant interdecadal variability modes, Pacific Decadal Oscillation (PDO) and Atlantic Multidecadal Oscillation (AMO). Finally, preliminary evaluation of the ensemble mean of the hindcast runs suggests that the IAP-DecPreS has skill in the prediction of the PDO-related SST anomalies in the midlatitude North Pacific and AMO-related SST anomalies in the tropical North Atlantic. © 2018. The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75655
Appears in Collections: 影响、适应和脆弱性 气候变化与战略
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作者单位: LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, China Meteorological Administration, Beijing, China; University of the Chinese Academy of Sciences, Beijing, China; ICCES, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Wu B,, Zhou T,, Zheng F. EnOI-IAU Initialization Scheme Designed for Decadal Climate Prediction System IAP-DecPreS[J]. Journal of Advances in Modeling Earth Systems,2018-01-01,10(2)