View source for Check Files 2d DEM Z HR

The _DEM_Z_HR contains a raster based on the sampled Sub-Grid Sampling (SGS) elevations. This file is only produced when running a model with SGS that also has high-resolution outputs. If a model has high-resolution output set up, the _DEM_Z_HR will automatically be output as a check file instead of the <u>[[Check_Files_2d_DEM_Zmin | _DEM_Zmin]]</u>.<br>
<br>
Output grid formats currently supported by TUFLOW include GeoTIFF grids (.tif), binary grids (.flt) and ESRI ASCII grid format (.asc). The TCF command <font color="blue"><tt>Grid Format </tt></font> <font color="red"><tt>==</tt></font><tt> TIF</tt>, <font color="blue"><tt>Grid Format </tt></font> <font color="red"><tt>==</tt></font><tt> FLT</tt> or <font color="blue"><tt>Grid Format </tt></font> <font color="red"><tt>==</tt></font><tt> ASC</tt> can be used to set the preferred output format. The default output format is TIF.  All of these formats are widely recognised (QGIS, MapInfo, ArcMap, SMS etc).  The [[ASC_to_ASC#2023-03-AA_.28and_later.29 | asc_to_asc utility]] can be used to convert between ASC and TIF (in both directions).<br>
<br>
As with the other high-resolution outputs, the resolution of the _DEM_Z_HR check file is determined based on the SGS sampled distance. For example, if the <font color="blue"><tt>SGS Sample Target Distance </tt></font> <font color="red"><tt>==</tt></font><tt> 0.5</tt>, the DEM_Z_HR will be at 0.5m resolution.
This raster is a north-south aligned raster and so minor interpolation is required to display the TUFLOW model on this grid. 

{{Tips Navigation
|uplink=[[TUFLOW_Check_Files | TUFLOW Check Files]]
}}