Lateral Boundary Conditions Scripts
From WikiROMS
Matlab: Lateral Boundary Conditions Scripts
This page describes several Matlab scripts to process ROMS lateral boundary conditions data.
Matlab Scripts Menu |
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1. Introduction |
2. 4D-Var Observations Scripts |
3. Bathymetry Scripts |
4. Lateral Boundary Conditions Scripts |
5. Coastline Extraction Scripts |
6. Grid Processing Scripts |
7. Initial Conditions and Climatology Scripts |
8. Land/Sea Masking Scripts |
9. NetCDF Data Processing Scripts |
10. SeaGrid Generation Scripts |
11. Seawater Properties Scripts |
12. Utility Scripts |
- obc_roms2roms.m
- Interpolates requested 2D or 3D lateral boundary conditions variables 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.
- B = obc_roms2roms (ncname, D, R, VarList, Tindex, boundary, method, offset, RemoveNaN)
- On Input:
ncname: Donor grid NetCDF file name containing variables 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) VarList: List of variable names to process (cell array) Tindex: Time record index to process (scalar) boundary: Lateral boundary condition switches (logicals) of the grid edges to process (struct array):
boundary.west Western edge boundary.east Eastern edge boundary.south Southern edge boundary.north Northern edge
method: Interpolation method in TriScatteredInterp (string):
'natural' natural neighbor interpolation 'linear' linear interpolation (default) 'nearest' nearest-neighbor interpolation
offset: Number of extra points to use when sampling the donor grid so it 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:
B: Interpolated requested 2D or 3D lateral boundary variables (struct array)