The UG local (South East Baltic Sea) system

The local (South East Baltic Sea) receives boundary conditions from the DMI regional model. UG also has a setup where the local model is two-way nested to the UG regional model of the Baltic Sea.

Domain

Baltic Sea: 09°24’E - 30°05'E; 53°52'N - 65°52'N

Calculation Code

M3D_UoG/ProDeMo (v.4) ECOOP Baltic V0

Output frequency

Daily

Horizontal grid

Cartesian with meridional × zonal gridspacing of 1/120°×1/60° (= 0.5 nm x 0.5 nm)

Vertical grid

- sigma-levels with total number of 35 levels

- free surface

Bathymetry

Blended from various databases. Based on data from UoG, MI Gdansk, BHMW Gdynia

i) Institute of Oceanography University of Gdańsk (UoG)

ii) Meritime Institute of Gdańsk (MIG)

iii) The Hydrography Bureau of Polish Navy Gdynia (BHMW)

Surface Forcings

6-hours forecasts from the UMPL (ICM Warsaw University) atmospheric model and REMO (GKSS) - grid spacing over sea model domain is 12 km

- Forecasted parameters:

vi) Wind speed at 10 m

vii) Sea level pressure

viii) Cloud coverage

ix) Relative humidity

x) Air temperature at 2 m

Bulk formula

Boundary Conditions

- BC from DMI Baltic regional model (sea level, T, S, U,V)

- Climatic monthly mean runoff data of 152 rivers from Baltic Environment Database

Lateral Friction

Half slip condition (the model is using Arakawa C-grid)

Bottom Friction

Non linear bottom friction

Horizontal Diffusion for the Dynamics/Substances

Smagorinsky scheme

Advection

Upstream scheme

Vertical Mixing

Mellor – Yamada turbulence model

Tide

No tides constituents

SPM TRANSPORTS

No SPM Transports

BIOLOGY

No Biology

ASSIMILATION

Type

Cressman, OI

Parameters

Sea level, Sea Surface Temperature, 3D of T/S

Frequency

Applied daily

Method

Cressman method, Optimal interpolation

Ezer T., Mellor G.L., 1997, Data assimilation experiments in the Gulf Strean Region: how usefull are satellite–derived surface data for nowcasting the subsurface field? Jour. Atmo. And Oc. Technology, 14, 1379 – 1391.

ICE model

Parameters

Ice cover, Ice temperature, currents under ice cover

Transport of ice

Frequency

Applied daily

Processes

Forming of fluxes, freezing, melting, concentration

 
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modelling/south-east_baltic_sea.txt · Last modified: 2010/01/11 11:34 by poddo
 
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