典型文献
Investigating the ENSO prediction skills of the Beijing Climate Center climate prediction system version 2
文献摘要:
The El Ni?o-Southern Oscillation (ENSO) ensemble prediction skills of the Beijing Climate Center (BCC) climate prediction system version 2 (BCC-CPS2) are examined for the period from 1991 to 2018. The upper-limit ENSO predictability of this system is quantified by measuring its "potential" predictability using information-based metrics, whereas the actual prediction skill is evaluated using deterministic and probabilistic skill measures. Results show that: (1) In general, the current operational BCC model achieves an effective 10-month lead predictability for ENSO. Moreover, prediction skills are up to 10–11 months for the warm and cold ENSO phases, while the normal phase has a prediction skill of just 6 months. (2) Similar to previous results of the intermediate coupled models, the relative entropy (RE) with a dominating ENSO signal component can more effectively quantify correlation-based prediction skills compared to the predictive information (PI) and the predictive power (PP). (3) An evaluation of the signal-dependent feature of the prediction skill scores suggests the relationship between the "Spring predictability barrier (SPB)" of ENSO prediction and the weak ENSO signal phase during boreal spring and early summer.
文献关键词:
中图分类号:
作者姓名:
Yanjie Cheng;Youmin Tang;Tongwen Wu;Xiaoge Xin;Xiangwen Liu;Jianglong Li;Xiaoyun Liang;Qiaoping Li;Junchen Yao;Jinghui Yan
作者机构:
CMA Earth System Modeling and Prediction Centre,China Meteorological Administration(CMA),Beijing 100081,China;State Key Laboratory of Severe Weather,China Meteorological Administration,Beijing 100081,China;College of Environmental Science and Engineering,University of Northern British Columbia,Prince George V2N4Z9,Canada
文献出处:
引用格式:
[1]Yanjie Cheng;Youmin Tang;Tongwen Wu;Xiaoge Xin;Xiangwen Liu;Jianglong Li;Xiaoyun Liang;Qiaoping Li;Junchen Yao;Jinghui Yan-.Investigating the ENSO prediction skills of the Beijing Climate Center climate prediction system version 2)[J].海洋学报(英文版),2022(05):99-109
A类:
CPS2
B类:
Investigating,ENSO,prediction,skills,Beijing,Climate,Center,climate,system,version,El,Southern,Oscillation,ensemble,BCC,examined,period,from,upper,limit,predictability,this,quantified,by,measuring,its,potential,using,information,metrics,whereas,actual,evaluated,deterministic,probabilistic,measures,Results,show,that,general,current,operational,achieves,lead,Moreover,months,warm,cold,phases,while,normal,just,Similar,previous,results,intermediate,coupled,models,relative,entropy,RE,dominating,signal,component,can,more,effectively,quantify,correlation,compared,predictive,power,PP,An,evaluation,dependent,feature,scores,suggests,relationship,between,Spring,barrier,SPB,weak,during,boreal,spring,early,summer
AB值:
0.536907
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