|When was the current long-range forecast system implemented?
|System name: JMA/MRI-CPS3
Implemented: February 2022
|Is it a coupled forecast system?
|Is it a Tier-2 forecast system?
|Atmospheric model resolution
|TL319 (approx. 55km), 100 vertical layers
|Ocean model (if applicable)
|0.25ºx0.25º on a tripolar grid, 60 vertical layers
|Source of atmospheric initial conditions
|Operational forecast: JMA’s Global Analysis (Hybrid LETKF/4DVAR system)
|Source of ocean initial conditions
|JMA’s MOVE/MRI.COM-G3 (Ocean 4DVAR system)
|If Tier-2, what is the source of SST predictions?
|Ensemble size for the hindcasts
|10 (5 members with 15-day Lagged Average Forecast)
|How is the hindcast ensemble configured?
|Atmosphere: BGM and SPPT, Ocean: Ensemble perturbations approximating analysis error covariances using minimization histories
|Ensemble size for the forecast
|5 per day
|How is the forecast ensemble configured?
|Atmosphere: BGM and SPPT, Ocean: Ensemble perturbations approximating analysis error covariance using minimization histories
|Length of forecasts
|Up to 7 months
|What is the latest date predicted anomalies for the next month/season become available?
|5 member ensemble is available everyday
|How are the forecast anomalies constructed?
|Calculate anomalies against daily normal baseline data sampled from 30-year hindcast data with linear interpolation of nearest (before/after) 2 days
|URL where forecast are displayed
|Point of Contact
|Mr. Takuya Komori (email@example.com)