Initial Conditions and Climatology Scripts: Difference between revisions
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Revision as of 19:19, 23 April 2012
Matlab: Initial Conditions and Climatology Scripts
This page describes several Matlab scripts to process ROMS initial conditions and climatology data.
- roms2roms.m
- Interpolates requested 2D or 3D variable between two ROMS application grids. The receiver grid must be inside of the donor grid. This function is intended for down-scaling or nesting applications. The horizontal/vertical coordinates for the donor and the and receiver grids are specified with array structures D and R, which are built elsewhere using script get_roms_grid.m for efficiency and functionality.
- V = roms2roms (ncname, D, R, Vname, Tindex, Rvector, method, offset, RemoveNaN)
- On Input:
- ncname: Donor grid NetCDF file name containing variable to process (string)
- D: Donor grid structure containing all horizontal and vertical variables (struct array)
- R: Receiver grid structure containing all horizontal and vertical variables (struct array)
- Vname: Field variable name to process (string)
- Tindex: Time record index to process (scalar)
- Rvector: Switch to Interpolate U- and V-points variables to RHO-points to facilitate rotation in curvilinear grid applications elsewhere (logical)
- method: Interpolation method in TriScatteredInterp (string):
- natural - natural neighbor interpolation
- linear - linear interpolation (default)
- nearest - nearest-neighbor interpolation
- offset: Number of extra points to used to sample the donor grid so is large enough to contain the receiver grid (default 5)
- RemoveNaN: Switch to remove NaN values from interpolated variable with a second interpolation step using the nearest-neighbor method (default false)
- On Output:
- V: Interpolated requested 2D or 3D variable
