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  1. Ongoing and Planned Activities in Sub-seasonal Forecasting at the NCEP Arun Kumar Climate Prediction Center 02 December 2011

  2. Real-time Forecast Configuration • Coupled model • T126/L64 • MOM4 • 16 runs/day; 45 day forecast • Initial conditions for the ocean, atmosphere, land are from the CFSR • Coupled analysis • T574 • Real-time forecast products are calibrated based on the hindcasts climatology Arun Kumar Climate Prediction Center 02 December 2011

  3. Hindcasts • Period : 1999- 2010 • 4 runs/day; 45 day • Hindcasts are used for • Developing calibration climatologies (mean; standard deviation) • Skill assessments and skill masks Arun Kumar Climate Prediction Center 02 December 2011

  4. Some Products Arun Kumar Climate Prediction Center 02 December 2011

  5. MJO Arun Kumar Climate Prediction Center 02 December 2011

  6. Global Tropical Hazard (GTH) Arun Kumar Climate Prediction Center 02 December 2011

  7. Monthly Forecasts Arun Kumar Climate Prediction Center 02 December 2011

  8. Monthly Forecasts Arun Kumar Climate Prediction Center 02 December 2011

  9. Weekly Forecasts Arun Kumar Climate Prediction Center 02 December 2011

  10. Weekly Forecasts Arun Kumar Climate Prediction Center 02 December 2011

  11. Applications of Interest MJO and Global Hazards Prediction of consecutive days of extreme temperature and precipitation Prediction of blocking and various circulation indices Prediction of tropical storms (with specific interest in Atlantic Hurricanes) Prediction of onset date, and active and break phases of various monsoons Prediction of sudden stratospheric warming (SSW) Arun Kumar Climate Prediction Center 02 December 2011