Predictability of the western North Pacific summer climate demonstrated by the coupled models of ENSEMBLES

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• 作者：Chaofan Li (1)
  Riyu Lu (1) lr@mail.iap.ac.cn
  Buwen Dong (2)
• 关键词：Western North Pacific &#8211 ; Coupled models &#8211 ; Seasonal forecast &#8211 ; ENSEMBLES &#8211 ; Summer climate &#8211 ; Prediction spread
• 刊名：Climate Dynamics
• 出版年：2012
• 出版时间：July 2012
• 年：2012
• 卷：39
• 期：1-2
• 页码：329-346
• 全文大小：3.9 MB
• 参考文献：1. Adler RF, Huffman GJ, Chang A, Ferraro R, Xie P, Janowiak J, Rudolf B, Schneider U, Curtis S, Bolvin D, Gruber A, Susskind J, Arkin P (2003) The Version-2 Global Precipitation Climatology Project (GPCP) monthly precipitation analysis (1979—present). J Hydrometeor 4:1147–1167
  2. Chou C, Tu JY, Yu JY (2003) Interannual variability of the western North Pacific summer monsoon: differences between ENSO and non-ENSO years. J Clim 16:2275–2287
  3. Chowdary JS, Xie S-P, Luo J–J, Hafner J, Behera S, Masumoto Y, Yamagata T (2009) Predictability of Northwest Pacific climate during summer and the role of the tropical Indian Ocean. Clim Dyn 36:607–621. doi:
  4. Chowdary J, Xie S-P, Lee J-Y, Kosaka Y, Wang B (2010) Predictability of summer Northwest Pacific climate in eleven coupled model hindcasts: local and remote forcing. J Geophys Res 115:D22121. doi:
  5. Doblas-Reyes FJ, Weisheimer A, D茅qu茅 M, Keenlyside N, McVean M, Murphy J, Rogel P, Smith D, Palmer TN (2009) Addressing model uncertainty in seasonal and annual dynamical ensemble forecasts. Q J R Meteorol Soc 135:1538–1559. doi:
  6. Doblas-Reyes FJ, Weisheimer A, Palmer TN, Murphy JM, Smith D (2010) Forecast quality assessment of the ENSEMBLES seasonal-to-decadal Stream 2 hindcasts. ECMWF Technical Memorandum No. 621, ECMWF, Reading, UK, 45 p
  7. Huang G (2004) An index measuring the interannual variation of the East Asian summer monsoon—the EAP index. Adv Atmos Sci 21:41–52
  8. Huang R, Sun F (1992) Impacts of the tropical western Pacific on the East Asian summer monsoon. J Meteor Soc Jpn 70:243–256
  9. Huang G, Hu K, Xie S-P (2010) Strengthening of tropical Indian Ocean teleconnection to the Northwest Pacific since the mid-1970s: an atmospheric GCM study. J Clim 23:5294–5304
  10. Kalnay E, Kanamitsu M, Kistler R, Collins W, Deaven D, Gandin L, Iredell M, Saha S, White G, Woollen J (1996) The NCEP/NCAR 40-year reanalysis project. Bull Am Meteorol Soc 77:437–471
  11. Kobayashi C, Maeda S, Ito A, Matsushita Y, Takano K (2005) Relation between SSTs and predicability of seasonal mean precipitation over the western tropical Pacific. J Meteor Soc Jpn 83:919–929
  12. Lau K, Kim K, Yang S (2000) Dynamical and boundary forcing characteristics of regional components of the Asian summer monsoon. J Clim 13:2461–2482
  13. Lee J-Y, Wang B, Kang I-S, Shukla J et al (2010) How are seasonal prediction skills related to models’ performance on mean state and annual cycle? Clim Dyn 35:267–283. doi:
  14. Lee S-S, Lee J-Y, Ha K-J, Wang B, Schemm J (2011) Deficiencies and possibilities for long-lead coupled climate prediction of the western North Pacific-East Asian summer monsoon. Clim Dyn 36:1173–1188. doi:
  15. Li S, Lu J, Huang G, Hu K (2008) Tropical Indian Ocean basin warming and East Asian summer monsoon: a multiple AGCM study. J Clim 21:6080–6088
  16. Liang J, Yang S, Hu ZZ, Huang B, Kumar A, Zhang Z (2009) Predictable patterns of the Asian and Indo-Pacific summer precipitation in the NCEP CFS. Clim Dyn 32:989–1001. doi:
  17. Lu R (2001) Interannual variability of the summertime North Pacific subtropical high and its relation to atmospheric convection over the warm pool. J Meteor Soc Jpn 79:771–783
  18. Lu R (2002) Precursory SST anomalies associated with the convection over the western Pacific warm pool. Chin Sci Bull 47:696–699
  19. Lu R, Dong B (2001) Westward extension of North Pacific subtropical high in summer. J Meteor Soc Jpn 79:1229–1241
  20. Lu R, Lin Z (2009) Role of subtropical precipitation anomalies in maintaining the summertime meridional teleconnection over the western North Pacific and East Asia. J Clim 22:2058–2072
  21. Lu R, Li Y, Dong B (2006) External and internal summer atmospheric variability in the western North Pacific and East Asia. J Meteor Soc Jpn 84:447–462
  22. Nitta T (1987) Convective activities in the tropical western Pacific and their impact on the Northern Hemisphere summer circulation. J Meteor Soc Jpn 65:373–390
  23. Palmer TN, Alessandri A, Andersen U, Cantelaube P et al (2004) Development of a European multi-model ensemble system for seasonal to inter-annual prediction (DEMETER). Bull Am Meteorol Soc 85:853–872. doi:
  24. Rajeevan M, Unnikrishnan CK, Preethi B (2011) Evaluation of the ENSEMBLES multi-model seasonal forecasts of Indian summer monsoon variability. Clim Dyn. doi:10.1007/s00382-011-1061-x
  25. Rodwell MJ, Hoskins BJ (2001) Subtropical anticyclones and summer monsoons. J Clim 14:3192–3211
  26. Smith TM, Reynolds RW (2004) Improved extended reconstruction of SST (1854–1997). J Clim 17:2466–2477
  27. Terao T, Kubota T (2005) East-west SST contrast over the tropical oceans and the post El Ni帽o western North Pacific summer monsoon. Geophys Res Lett 32:L15706. doi:
  28. van der Linden P, Mitchell JFB (eds) (2009) ENSEMBLES: climate change and its impact: summary of research and results from ENSEMBLES project. Met Office Hadley Centre, FitzRoy Road, Exeter EX1 3PB, UK, 160 p
  29. Wang B, Fan Z (1999) Choice of South Asian summer monsoon indices. Bul Am Meteorol Soc 80:629–638
  30. Wang H, Fan K (2009) A new scheme for improving the seasonal prediction of summer precipitation anomalies. Weather Forecast 24:548–554. doi:
  31. Wang B, Wu R, Fu X (2000) Pacific-East Asian teleconnection: how does ENSO affect East Asian climate? J Clim 13:1517–1536
  32. Wang B, Wu R, Lau KM (2001) Interannual variability of the Asian summer monsoon: contrasts between the Indian and the western North Pacific–East Asian monsoons. J Clim 14:4073–4090
  33. Wang B, Kang I-S, Lee J-Y (2004) Ensemble simulations of Asian-Australian monsoon variability by 11 AGCMs. J Clim 17:803–818
  34. Wang B, Ding Q, Fu X, Kang IS, Jin K, Shukla J, Doblas-Reyes FJ (2005) Fundamental challenge in simulation and prediction of summer monsoon rainfall. Geophys Res Lett 32:L15711. doi:
  35. Wang B, Lee JY, Kang IS, Shukla J, Kug JS, Kumar A, Schemm J, Luo J–J, Yamagata T, Park CK (2008) How accurately do coupled climate models predict the leading modes of Asian-Australian monsoon interannual variability? Clim Dyn 30:605–619. doi:
  36. Wang B, Lee JY, Kang IS et al (2009) Advance and prospectus of seasonal prediction: assessment of the APCC/CliPAS 14-model ensemble retrospective seasonal prediction (1980–2004). Clim Dyn 33:93–117. doi:
  37. Wu Z, Li J (2008) Prediction of the Asian-Australian monsoon interannual variations with the grid-point atmospheric model of IAP LASG (GAMIL). Adv Atmos Sci 25:387–394
  38. Wu R, Kirtman BP, Pegion K (2006) Local air-sea relationship in observations and model simulations. J Clim 19:4914–4932
  39. Wu B, Zhou T, Li T (2009) Contrast of rainfall–SST relationships in the Western North Pacific between the ENSO-developing and ENSO-decaying summers. J Clim 22:4398–4405
  40. Xie S-P, Hu K, Hafner J, Tokinaga H, Du Y, Huang G, Sampe T (2009) Indian Ocean capacitor effect on Indo-Western Pacific climate during the summer following El Ni帽o. J Clim 22:730–747
  41. Xie S-P, Du Y, Huang G, Zheng X-T, Tokinaga H, Hu K, Liu Q (2010) Decadal Shift in El Ni帽o Influences on Indo–Western Pacific and East Asian Climate in the 1970s. J Clim 23:3352–3368. doi:
  42. Yan L, Wang P, Yu Y, Li L, Wang B (2010) Potential predictability of sea surface temperature in a coupled ocean-atmosphere GCM. Adv Atmos Sci 27:921–936
  43. Yang J, Liu Q, Xie S-P, Liu Z, Wu L (2007) Impact of the Indian Ocean SST basin mode on the Asian summer monsoon. Geophys Res Lett 34:L02708. doi:
  44. Yang S, Zhang Z, Kousky VE, Higgins RW, Yoo SH, Liang J, Fan Y (2008) Simulations and seasonal prediction of the Asian summer monsoon in the NCEP Climate Forecast System. J Clim 21:3755–3775
  45. Zhou T, Wu B, Wang B (2009) How well do atmospheric general circulation models capture the leading modes of the interannual variability of the Asian-Australian monsoon? J Clim 22:1159–1173
• 作者单位：1. State Key Laboratory of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, PO Box 9804, Beijing, 100029 China2. Department of Meteorology, National Centre for Atmospheric Science-Climate, University of Reading, Reading, UK
• ISSN：1432-0894

文摘

The Asian monsoon system, including the western North Pacific (WNP), East Asian, and Indian monsoons, dominates the climate of the Asia-Indian Ocean-Pacific region, and plays a significant role in the global hydrological and energy cycles. The prediction of monsoons and associated climate features is a major challenge in seasonal time scale climate forecast. In this study, a comprehensive assessment of the interannual predictability of the WNP summer climate has been performed using the 1-month lead retrospective forecasts (hindcasts) of five state-of-the-art coupled models from ENSEMBLES for the period of 1960–2005. Spatial distribution of the temporal correlation coefficients shows that the interannual variation of precipitation is well predicted around the Maritime Continent and east of the Philippines. The high skills for the lower-tropospheric circulation and sea surface temperature (SST) spread over almost the whole WNP. These results indicate that the models in general successfully predict the interannual variation of the WNP summer climate. Two typical indices, the WNP summer precipitation index and the WNP lower-tropospheric circulation index (WNPMI), have been used to quantify the forecast skill. The correlation coefficient between five models’ multi-model ensemble (MME) mean prediction and observations for the WNP summer precipitation index reaches 0.66 during 1979–2005 while it is 0.68 for the WNPMI during 1960–2005. The WNPMI-regressed anomalies of lower-tropospheric winds, SSTs and precipitation are similar between observations and MME. Further analysis suggests that prediction reliability of the WNP summer climate mainly arises from the atmosphere–ocean interaction over the tropical Indian and the tropical Pacific Ocean, implying that continuing improvement in the representation of the air–sea interaction over these regions in CGCMs is a key for long-lead seasonal forecast over the WNP and East Asia. On the other hand, the prediction of the WNP summer climate anomalies exhibits a remarkable spread resulted from uncertainty in initial conditions. The summer anomalies related to the prediction spread, including the lower-tropospheric circulation, SST and precipitation anomalies, show a Pacific-Japan or East Asia-Pacific pattern in the meridional direction over the WNP. Our further investigations suggest that the WNPMI prediction spread arises mainly from the internal dynamics in air–sea interaction over the WNP and Indian Ocean, since the local relationships among the anomalous SST, circulation, and precipitation associated with the spread are similar to those associated with the interannual variation of the WNPMI in both observations and MME. However, the magnitudes of these anomalies related to the spread are weaker, ranging from one third to a half of those anomalies associated with the interannual variation of the WNPMI in MME over the tropical Indian Ocean and subtropical WNP. These results further support that the improvement in the representation of the air–sea interaction over the tropical Indian Ocean and subtropical WNP in CGCMs is a key for reducing the prediction spread and for improving the long-lead seasonal forecast over the WNP and East Asia.