| Version 2 (modified by jpaul, 10 years ago) (diff) |
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How create regional configuration
What do we need to create regional configuration
- Coordinates
- Bathymetry
- Boundary condition
- Initial condition
- Tide
- Runoff
- Surface forcing
How Mercator create regional confiuration
Hypothesis and limits of the method
Hypothesis
- orca grid to orca grid
- odd refinement
- free licence language
Limits of the method
- can't create domain on north pole or band of latitude
- don't create files to use TOP, LIM
- get data of the system used (ex: GLORYS, ORCA12...) to forced at boundaries and initialised new configuration, from local space.
Coordinates
- extraction of the domain from an already existing coordinate file. [fortran]
- boundary still on U,V point
Bathymetry
- extraction of the domain from an already existing bathymetry file [fortran code].
- merged bathymetry at boundary ($\sim1$\textdegree) with weighted function [fortran code].
Boundary condition
- extrapolation of the above system ouput [fortran code].
- horizontally (first) : distance weighted function using nearest 9 points
- vertically : takes value of the upper point
- interpolation to refine grid (T,S,U,V,SSH) [fortran code] :
- horizontally: bilinear or bicubic
- extraction at boundaries [fortran code].
- output in OBC form.
- before run NEMO, concatenated files over the period [nco].
Initial condition
- from a restart file (netcdf or dimg) or from a standard output [fortran code, nco] :
- extrapolation :
- horizontally (first) : distance weighted function using nearest 9 points.
- vertically : takes value of the upper point
- interpolation to refine grid (T,S,U,V,SSH) :
- horizontally: bilinear or bicubic
- extrapolation :
Tide
- Interpolation and extraction of the domain from an already existing tide file (TPXO) [fortran code].
Runoff
- as rain :
- interpolation and extraction of the domain from an already existing runoff file [fortran code].
- as rain and flux for biggest river :
- interpolation and extraction of the domain from an already existing runoff file (minor river) [fortran code].
- biggest river are include as flux (BDY) [fortran code].
Surface forcing
manage inside NEMO using interpolation on the fly. (weighted function needed to do interpolation on the fly, could be created by WEIGHT tools already inside NEMO).
