- System
– System name (version): SL-AV20
– Date of implementation: 31.03.2016
- Configuration
– Horizontal resolution of the model, with indication of grid spacing in km: 0.225° in longitude, variable resolution in latitude from 0.24 in the extratropical part of Southern hemisphere to 0.16 degrees in midlatitudes of the Northern hemisphere.
– Number of model levels: 51
– Top of model: 5 hPa
– Forecast length and forecast step interval: For 00 UTC, forecast fields are available from 3 to 120 hours with the step of 3 hours (some fields with the step of 6 hours ).
For 12 UTC, forecast fields are available from 3 to 240 hours. Up to 120 hours they are with the step of 3 hours (some fields are with the step of 6 hours), the fields are written every 12 hours for lead times from 132 to 168 hours; every 24 hours for lead times form 192 to 240 hours.
– Runs per day (times in UTC): 2, 00 and 12 UTC
– Is model coupled to ocean, wave, sea-ice models? Specify which models: No
– Integration time step: 216 s
– Additional comments:
- Initial conditions
– Data assimilation method: 3D-Var
– Additional comments:
- Surface boundary conditions
– Sea-surface temperature? If yes, briefly describe method(s): OSTIA data
– Land-surface analysis? If yes, briefly describe method(s): ISBA assimilation scheme ( Giard D., Bazile E. Mon. Wea. Rev. 2000. 997-1015) as implemented in (Bogoslovskii et al, J. Comput. Technologies, 2008)
– Additional comments:
- Other details of model
– What kind of soil scheme is in use?: ISBA (Noilhan J., Mahfouf J.-F. Global Planet Change. 1996. 145-149).
– How are radiations parameterized?: CLIRAD SW (Tarasova T.A., Fomin B.A.
- Atm. Ocean.Technol. 2007. 1157-1162) , RRTMG LW (Mlawer E.J., Taubman S.J., Brown P. D., Iacono M.J., Clough S.A. J. Geoph. Res.: Atmos. 1997. P. 16663-16682)
– What kind of large-scale dynamics is in use (for example, grid-point semi-Lagrangian)?
grid-point semi-Lagrangian (Tolstykh et al, Geosci. Mod. Devel. 2017, 1961-1983)
Hydrostatic or non-hydrostatic?: hydrostatic
– What kind of boundary layer parameterization is in use?: TOUCANS (Durán I.B., Geleyn J.-F., Vána F. J. Atmos. Sci. 2014), (Durán I.B., Geleyn J.-F., Vána F. J., Schmidli J., Brozkova R. Atmos. Sci. 2018)
– What kind of convection parameterization is in use?: Modified Bougeault scheme
(Gerard L., Geleyn J.-F., Quart J.Roy.Met.Soc. 2005)
– What cloud scheme is in use?: Xu-Randall (Gerard L., Piriou J.-M., Brozkova R., Geleyn J.-F., Banciu D. Mon. Wea. Rev. 2009).
– Other relevant details?:
- Further information
– Operational contact point: Mikhail Tolstykh email: This email address is being protected from spambots. You need JavaScript enabled to view it.
– URLs for system documentation: https://elibrary.ru/download/elibrary_35574057_38171365.pdf
– URL for list of products: