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CMCC technical documentation Gualdi et al (2020) CMCC Technical Note RP0288 DOI: https://wwwdoi.cmccorg/10.it25424/publications-type/technical-notes?f_anni&filter_topics&f_divisioni=747&f_inpress&f_searchkeyCMCC/SPS3.5
2.1 Atmosphere and land surface
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CLM Model documentation http://www.cesm.ucar.edu/models/cesm1.2/clm/
CMCC technical documentation Gualdi et al (2020) CMCC Technical Note RP0288 DOI: https://wwwdoi.cmccorg/10.it25424/publications-type/technical-notes?f_anni&filter_topics&f_divisioni=747&f_inpress&f_searchkeyCMCC/SPS3.5
2.2 Ocean and cryosphere
| Ocean model | NEMO v3.4 |
|---|---|
| Horizontal resolution | 1/4° |
| Vertical resolution | 50 vertical levels |
| Time step | 18 minutes |
| Sea ice model | CICE 4.0 |
| Sea ice model resolution | 1/4° |
| Sea ice model levels | 1 thickness only |
| Wave model | NO |
| Wave model resolution | N/A |
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Nemo Model documentation https://www.nemo-ocean.eu/doc/
CMCC technical documentation Gualdi et al (2020) CMCC Technical Note RP0288 DOI: https://wwwdoi.cmccorg/10.it25424/publications-type/technical-notes?f_anni&filter_topics&f_divisioni=747&f_inpress&f_searchkeyCMCC/SPS3.5
3. Initialization and initial condition (IC) perturbations
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For more ERA5 details: https://doi.org/10.1002/qj.3803.
CMCC technical documentation Gualdi et al (2020) CMCC Technical Note RP0288 DOI: https://wwwdoi.cmccorg/10.it25424/publications-type/technical-notes?f_anni&filter_topics&f_divisioni=747&f_inpress&f_searchkeyCMCC/SPS3.5
3.2 Ocean and cryosphere
| Hindcast | Forecast | |
|---|---|---|
| Ocean initialization | C-GLORS Global Ocean 3D-VAR | C-GLORS Global Ocean 3D-VAR |
| Ocean IC perturbations | 4 | 8 |
| Unperturbed control forecast? | NO | NO |
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More ocean data assimilation details available at http://c-glors.cmcc.it/index/index.html
CMCC technical documentation Gualdi et al (2020) CMCC Technical Note RP0288 DOI: https://doi.org/10.25424/CMCC/SPS3.5
4. Model uncertainties perturbations:
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Detailed documentation: For more info on Ocean D/A perturbations, see Brankart (2013) DOI: https://doi.org/10.1016/j.ocemod.2013.02.004
CMCC technical documentation Gualdi et al (2020) CMCC Technical Note RP0288 DOI: https://wwwdoi.cmccorg/10.it25424/publications-type/technical-notes?f_anni&filter_topics&f_divisioni=747&f_inpress&f_searchkeyCMCC/SPS3.5
5. Forecast system and hindcasts
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The 10 atmospheric perturbed ICs, the 3 land perturbed ICs and the 8 (4 in hindcast mode) are combined to yield 240 (120 in hindcast mode) possible perturbed ICs among which the 50 ICs (40 in hindcast mode) to produce the forecast ensemble are chosen at random.
Detailed documentation:
CMCC technical documentation Gualdi et al (2020) CMCC Technical Note RP0288 DOI: https://wwwdoi.cmccorg/10.it25424/publications-type/technical-notes?f_anni&filter_topics&f_divisioni=747&f_inpress&f_searchkeyCMCC/SPS3.5
7. Where to find more information
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