Difference between revisions of "Lateral Boundary Conditions Scripts"
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:::{| class="matlab" | :::{| class="matlab" | ||
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|<span class="twilightBlue">natural</span> | |<span class="twilightBlue">'natural'</span> | ||
|natural neighbor interpolation | |natural neighbor interpolation | ||
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|<span class="twilightBlue">linear </span> | |<span class="twilightBlue">'linear'</span> | ||
|linear interpolation (default) | |linear interpolation (default) | ||
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|<span class="twilightBlue">nearest</span> | |<span class="twilightBlue">'nearest'</span> | ||
|nearest-neighbor interpolation | |nearest-neighbor interpolation | ||
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Latest revision as of 13:13, 4 May 2012
Matlab: Lateral Boundary Conditions Scripts
This page describes several Matlab scripts to process ROMS lateral boundary conditions data.
- 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)
