# SIBERIA: Digital Terrain Map (DTM) Parameters

The parameters controlling the digital terrain map characteristics

CAUTION: Only modify these parameters if you really know what you are doing because it is possible (indeed likely) that SIBERIA will be unable to read the datafile after you change the characteristics.

SIBERIA parameter number | SIBERIA parameter name | Dialog Descriptor | Explanation
3 | kx | Easting dimension of grid (no of nodes) | The is the number of node points in the DTM grid in the east-west direction
4 | ky | Northing dimension of grid (no of nodes) | This is the number of of node points in the DTM grid in the north-south direction
54 | gridXY | Grid resolution (m) | The grid spacing of the DTM grid in metres.
55 | East | Easting of the bottom left hand corner of the grid (m) | This is as the dialog descriptor says. It should be noted that this coordinate corresponds to the node point 2 in the west to east direction of the grid (the 1st node point is part of the boundary conditions)
56 | North | Northing of the bottom left hand corner of the grid (m) | This is as the dialog descriptor says. It should be noted that this coordinate corresponds to the node point 2 in the south to north direction of the grid (the 1st node point is part of the boundary conditions)