Mohid Ocean Downscalling

Download

MyOcean

NOOA : GFS, RTOFS

Conversion

grib-netcdf-hdf5

Bathymetry transition

Running tool SmoothBathymNesting.exe

Example of the input file SmoothBathymNesting.dat

! File bathymetry of the external 3D solution
FATHER_BATIM                : 
!Bathymetry File of MOHID solution
SON_BATIM                   : 

!New Bathymetry File 
NEW_SON_BATIM               : 
<begin_coef>
NAME                        : generic property !Name of generic property
INITIALIZATION_METHOD       : sponge           !Type of initialization used
DEFAULTVALUE                : 1                !0-external 3D solution, 1-MOHID solution
SPONGE_OUT                  : 0
SPONGE_CELLS                : 10               !sponge cells number
SPONGE_EVOLUTION            : 2                !1-exponential, 2-linear
<end_coef>

Interpolation

z-level to MOHID geo

bilinear vs triangulation

linear horizontally and vertically

Boundary conditions

Open boundary

high frequency vs low frequency = mohid 2D + 3D external solution

radiation + flow relaxation scheme

Surface

impose wind stress, solar radiation

Compute sensible heat, latent heat based in the water/air temperature, wind, relative humidity

Spin up

slow connection of terms: wind, tide, atmospheric pressure, baroclinc force

initial condition : salinity and temperature from external solutions, null sea level gradient and null velocities

initial strong relaxation of temperature and salinity in all domain