Check Files 2d DEM M

This raster file contains the final material ID values in the model, it includes both 2D areas of the model and also 1D sections which utilise the 1D Water Level Line (1D mapping) functionality. If not using the material land use functionality (e.g. "Set CnM == 0.035"), this file may contain zero values.

Output grid formats currently supported by TUFLOW include the geodetic grids (.tif), binary grids (.flt) and ESRI ASCII grid format (.asc). The TCF command Grid Format == TIF or Grid Format == FLT or Grid Format == ASC can be used to set the preferred output format. The default output format is TIF. The asc_to_asc utility can be used to convert between ASC and TIF (in both directions).

All of these formats are widely recognised (QGIS, MapInfo, ArcMap, SMS etc). The cell size of the DEM_M check file (and all raster outputs from TUFLOW) can be set with the TCF command:
Grid Output Cell Size == <cell size in metres or feet>
This raster is a north-south aligned raster and so minor interpolation is required to display the TUFLOW model on this grid. To view the exact values at the cell side points the 2d_uvpt check file can be used. The _uvpt_check file is more suited to viewing the values at individual cells. Whilst the DEM_M can be used to quickly check large areas.

The DEM_M check file can be styled in your GIS software and you can also perform grid calculation between simulations.
In the image below the DEM_M check file is shown for the the spatial distribution of the land use.

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TUFLOW Check Files