PREDICTABILITY AND UNCERTAINTY IN SHORT-TERM CLIMATE PREDICTION
Received date: 1996-12-30
Revised date: 1997-02-03
Online published: 1998-02-01
Operational prediction works, experimental predictions and predictability studies on short-term(monthly to interannual scale) climate prediction during the last ten years or so were reviewed. It is indicated that correlation coefficients(C.C.) between predicted and observed monthly mean 500 hPa hight anomalies vary between 0. 2 and 0. 3 independently what model or statistical method was used. Temperature prediction shows similar skill, but it is much lower for precipitation prediction. Seasonal prediction was mainly based on statistical method. CGCM used in seasonal prediction is only being in the first stage of the development. Seasonal rainfall forecasting in China showed nearly the same skill(0.2～0.3 of C. C. ). Central task of seasonal prediction is of improving the ability to predict the changes in SST, ice-snow cover and land surface conditions. The most successful skill was found in ENSO predictions, C. C. was above 0. 6 with six or more months lead. But, it is still suffered from the predictability barrier in spring. Therefore, operational short-term climate predictions in the next a few years should be as usual based on the statistics rather than on the dynamics. However, great efforts should be made in studying the dynamic and thermodynamic mechanism of the climate system, and improving the GCM. Without these efforts, it is impossible to increase significantly the prediction skill.
Key words： Short-term climate prediction; Predictability; Uncertainty.
Wang Shaowu . PREDICTABILITY AND UNCERTAINTY IN SHORT-TERM CLIMATE PREDICTION[J]. Advances in Earth Science, 1998 , 13(1) : 8 -14 . DOI: 10.11867/j.issn.1001-8166.1998.01.0008
[1] 王绍武. WMO长期预报研究计划. 气象科技, 1990, (1) : 52-57.
[2] 王绍武. 短期气候预测研究的历史及现状. 见: 王绍武主编. 气候预测研究. 北京:气象出版社, 1996. 17.
[3] 王绍武, 林尔达等著. 气候预测与模拟研究. 北京: 气象出版社, 1993. 1-37.
[4] 王绍武. 美国第20届气候诊断年会.气象科技, 1996, (3):1-9.
[5] Baumhefner D P. Experimental 30-day forecasts from several spectral general circulation models. Proceedings of the Twelfth Annual Climate Diagnostics Workshop. 12-16 October 1987. Salt Lake City, 1988. 412-418.
[6] 赵振国. 我国汛期旱涝趋势预测进展. 见: 王绍武主编. 气候预测研究. 北京:气象出版社, 1996. 84-93.
[7] 朱锦红.NMC短期气候预测介绍. 见: 王绍武主编.气候预测研究. 北京: 气象出版社,1996. 18-28.
[8] 钱维宏, 王绍武, 李立. ENSO预报模式及其改进.见: 王绍武主编.气候预测研究.北京: 气象出版社, 1996. 102-113.
[9] van den Dool H M. Long-range weather forecasts through numerical and empirical methods. Dynamics of Atmospheres and Oceans, 1994, 20(3):247-270.
[10] Schemm J E, van den Dool H M. A multi-year DERF experiment at NCEP. Proceedings of the Twentieth Annual Climate Diagnostics Workshop.23-27 October 1995.Seattle NOAA, 1996.402-405.
[11] Barnston A G, Smith T M. Statistical prediction of global continental temperature and precipitation of 1 year in advance using global SST.Ibid, 1996.275-278.
[12] Livezey R E. Variability of skill of long range forecasts and implications for their use and value. Bull Amer Meteor Soc, 1990, 71(3):300-309.
[13] Livezey R E,Barnstion A G. Comparative skill of two analog seasonal temperature prediction systems:objective selection of predictors. Journal of Climate, 1994, 7(4):608-615.
[14] Gray W M. Climate prediction methodology. Proceedings of the Twentieth Annual Climate Diagnostics Workshop. 23-27 October 1995. Seattle, NOAA, 1996. 398-401.
[15] Ji Ming, Kumar A, Leetmaa A. Climate forecast system for seasonal predictions. Proceedings of the Eighteenth Annual Climate Diagnostics Workshop. 1-5November,Boulder.NOAA, 1994,1993: 350-353.
[16] Powell D P, Foll C K, Maskell K,et al. Modeling the influence of global sea surface temperatures on the variability and predictability of seasonal Sahel rainfall. Geophys Res Lett, 1992, 19:905-908.
[17] CLIVAR. A Study of Climate Variability and Predictability. Science Plan August 1995, WCRP—89, WMO/TD No.690,1995.
[18] Cane M A,Zebiak S E,Dolan S L.Experimental forecasts of El Nino.Nature, 1986, 321:827-832.
[19] Latif M, Barnett T P, Cane M A,et al. A review of ENSO prediction studies. Climate Dynamics, 1994, 9(4/5):167-179.
[20] Nellin J D, Latif M, Allaart M A F,et al. Tropical air-sea interaction in general circulation models. Climate Dynamics, 1992,7(2):73-104.
[21] Webster P J,Yang S.Monsoon and ENSO selectively interactive systems. Quart J R Meteorol Soc,1992,118(507):877-926.
[22] Yasunari T, Ueno K, Tomita T. Role of tropical/extra-tropical interactions on the monsoon/atmosphere-ocean system(MAOS) in the tropics. Proceedings of the International Conference on Monsoon Variability and Prediction, 9-13 May 1994. Trieste, Italy, WCRP—84, 1994. 9-16.
[23] Webster P J. The monsoon,structure,properties and role ininterannual variability.Ibid, 1994.1-8.
[24] Meehl G A.Coupled land-ocean-atmosphere processes and a biennial mechanism in the south Asian monsoon region.Ibid, 1994. 637-644.
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