...
First operational forecast run: 15 March 2011
2. Configuration of the forecast model
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| Hindcast | Forecast | |
|---|---|---|
| Atmosphere initialization | Every 5th day of the calendar month from Climate Forecast System Reanalysis (CFSR) | Everyday from Climate Forecast System Reanalysis (CFSR) |
| Atmosphere IC perturbations | Forecasts are initialized from each 6 hourly analysis cycle. No additional perturbations are added to the analysis. | Same as for the hindcast. |
Land Initialization | From the Climate Forecast System Reanalysis (CFSR) | From the Climate Forecast System Reanalysis (CFSR) |
| Land IC perturbations | No explicit perturbations added. | No explicit perturbations added. |
| Soil moisture initialization | From the Climate Forecast System Reanalysis (CFSR) | No explicit perturbations added. |
| Snow initialization | From the Climate Forecast System Reanalysis (CFSR) | No explicit perturbations added. |
| Unperturbed control forecast? | None | None |
Data assimilation method for control analysis:
...
| Hindcast | Forecast | |
|---|---|---|
| Ocean initialization | CFSR | CFSR |
| Ocean IC perturbations | No explicit perturbations added to the analysis | No explicit perturbations added to the analysis |
| Unperturbed control forecast? | None | None |
Detailed documentation:
4. Model Uncertainties perturbations:
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5. Forecast system and hindcasts
| Forecast frequency | Every day |
|---|---|
| Forecast ensemble size | Four/day |
| Hindcast years | 1981-2010 |
| Hindcast ensemble size | Four/day |
| On-the-fly or static hindcast set? | Static hindcast |
| Calibration (bias correction) period | 1981-2010 |
...
7. Where to find more information
Comprehensive description of the model physics:
Ek, M. B., K. E. Mitchell, Y. Lin, E. Rogers, P. Grunmann, V. Koren, G. Gayno, and J. D. Tarplay, 2003: Implementation of Noah land surface model advances in the National Centers for Environmental Prediction operational mesoscale Eta model. J. Geophys. Res., 108, 8851, doi:10.1029/2002JD003296.
Saha, S., and Coauthors, 2010: The NCEP Climate Forecast System Reanalysis. Bull. Amer. Meteor. Soc., 91, 1015.1057. doi: 10.1175/2010BAMS3001.1
Saha, S. and Coauthors, 2014: The NCEP Climate Forecast System Version 2 J. Climate, 27, 2185–2208. doi: http://dx.doi.org/10.1175/JCLI-D-12-00823.1
http://www.ral.ucar.edu/research/land/technology/lsm/noah/Noah_LSM_USERGUIDE_2.7.1.pdf
Zobler, L. 1986. A World Soil File for Global Climate Modelling. NASA Technical Memorandum 87802. NASA Goddard Institute for Space Studies, New York, New York, U.S.A.