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GRID to GRID draft: Difference between revisions

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==Remap==
'''"-wl <wl_file> -dem <dem_file>"'''<br>▼
Remaps acoarser resolution water level grid to a higherfiner resolution DEM.<br>
'''"-wl <wl_file>"'''<br>
Sets the coarser resolution water level grid to remap to a finer resolution DEM.<br>
▲'''"-dem <dem_file>"'''<br>
The default interpolation method is TIN. But "-idw_npt<number of points>" flag can be used to change the interpolation method to IDW and set the number of points used for IDW interpolation (default is 12).<br>
Example:
*TheRemaps utilitywater canlevel also remap additional map output grids (e.g. velocity, hazard and others)grid to the resolution of the DEM file, e.g.:<br>
:<tt>grid_to_grid.exe -remap -wl lowres_h.tif -dem DEM_highres.tif</tt>
*The utility can also applyremap adepth bufferoutput distancegrids or add freeboard. For example,to the below applies a buffer distanceresolution of 20m, and adds a freeboard of 0.2m to the original water levelDEM grid.file:<br>
:<tt>grid_to_grid.exe -remap -wl lowres_h.tif -dem DEM_highres.tif lowres_v.tif lowres_hazardlowres_d.tif</tt>
*The utility can also apply a buffer distance or add a freeboard. The below applies a buffer distance of 20m, and adds a freeboard of 0.2m to the original water level grid.<br>
:<tt>grid_to_grid.exe -remap -fb0.2 -bd20 -wl lowres_h.tif -dem DEM_highres.tif</tt>
 
Note that, for any output types other than depth, this utility does NOT interpolate the result from the coarser grid to the finer grid, but only extends/reduces the output extent to the dry/wet extent. More discussions on this function is documented here [[TUFLOW_Remapping | TUFLOW Remapping Tool]].<br>
 
=GPKG and NetCDF=
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