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| Model | JMA-GSM |
|---|---|
| Horizontal resolution and grid | TL159 (approx. 110km) |
| Atmosphere vertical resolution | L60 |
| Top of atmosphere | 0.1hPa |
| Soil levels | 3 |
| Time step | 30 minutes |
...
| Hindcast | Forecast | |
|---|---|---|
| Ocean initialization | Multivariate Ocean Variational Estimation (MOVE)/MRI.COM Global 2 system (MOVE/MRI.COM-G2) | Multivariate Ocean Variational Estimation (MOVE)/MRI.COM Global 2 system (MOVE/MRI.COM-G2) |
| Ocean IC perturbations | MOVE/MRI-COM-G2 driven by JRA-55 with BGM perturbation | MOVE/MRI-COM-G2 driven by JRA-55 with BGM perturbation |
| Unperturbed control forecast? | None | None |
...
4. Model Uncertainties perturbations:
| Model dynamics perturbations | None |
|---|---|
| Model physics perturbations | Stochastically Perturbed Parametrization Tendencies (SPPT) scheme |
If there is a control forecast, is it perturbed? | Yes |
Detailed documentation: Yonehara and Ujiie, 2011
5. Forecast system and hindcasts
| Forecast frequency | Every 5 days |
|---|---|
| Forecast ensemble size | 13 |
| Hindcast years | 1981-2016 |
| Hindcast ensemble size | 10 (5 members with 15-day Lagged Average Forecast) |
| On-the-fly or static hindcast set? | static |
...
The available hindcast start dates are as follows:
Start Month | Available Start Days |
January | 16 and 31 |
February | 10 and 25 |
March | 12 and 27 |
April | 11 and 26 |
May | 16 and 31 |
June | 15 and 30 |
July | 15 and 30 |
August | 14 and 29 |
September | 13 and 28 |
October | 13 and 28 |
November | 12 and 27 |
December | 12 and 27 |
7. Where to find more information
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