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JMA's Ensemble Prediction System (Products of GPC Tokyo)

JMA operates the ensemble prediction system of an atmospheric global circulation model (AGCM) for one-month prediction and atmosphere-ocean coupled global curcuration model (CGCM) for three-month and warm/cold season prediction. Ensemble prediction products, verification charts and description of the ensemble prediction system are available on this page.

Notice Gridded data for seasonal forecasts have been upgraded since 17 Februrary 2010. Please refer to the top page of the "TCC News No. 19" for details.

Main Products Latest Products One-month Prediction One-month Prediction (11 May 2012) Z500, T850 & SLP (Northern Hemisphere) (11 May 2012) Stream Function, Velocity Potential & Surface Air Temperature (60N-60S) (11 May 2012) Verification (13 May 2012) Hindcast One-month Probabilistic Forecasts at station points Three-month Prediction Three-month Prediction (17 Apr 2012) Z500, T850 & SLP (Northern Hemisphere) (17 Apr 2012) Stream Function, Velocity Potential & Surface Air Temperature (60N-60S) (17 Apr 2012) Verification (05 May 2012) Hindcast Probabilistic Forecast and Verification (17 Apr 2012) Warm/Cold Season Prediction Warm/Cold Season Prediction (17 Apr 2012) Z500, T850 & SLP (Northern Hemisphere) (17 Apr 2012) Stream Function, Velocity Potential & Surface Air Temperature (60N-60S) (17 Apr 2012) Verification (14 Sep 2011) Hindcast Probabilistic Forecast and Verification (17 Apr 2012) Model Descriptions Model Outlines Operations for Extended-range Forecast Model Operations for Long-range Forecast Model Download GPC Long-range Forecast (LRF) Products Download Gridded data File  (Only registered NMHSs can access this page) Application If you have any questions about ID and/or password, please e-mail to: