TUFLOW Output Discussion: Difference between revisions

Content deleted Content added
 
(4 intermediate revisions by 2 users not shown)
Line 24:
 
== Why does hazard output (Z1, Z2, ...) show float values and not just integers? ==
The hazard values are calculated in cell corners and are in a form of an integer. When the values are processed into a grid, which has, by default, a resolution of half the cell size, the values are interpolated to the cell centres - four cell centre values per cell. Further interpolation occurs when the model has a non-zero orientation asbecause grid files are north-south aligned.<br>
 
== Why are results from 2d_po features, POMM.csv and plots extracted from XMDF in GIS package not matching? ==
Line 64:
==How to create a maximum grid for datasets without direct maximum output from a TUFLOW run?==
 
For cumulative datasets without direct maximum output (e.g., cumulative infiltration, cumulative rainfall etc), the map output interval in the TCF needs to match the simulation end time in seconds. The end time output is when the maximum occurs for cumulative datasets, as it represents the cumulative results over the entire simulation duration.
 
For non-cumulative datasets without direct maximum output (e.g., Froude number, rainfall rate etc):
Line 74:
*Confirm the dataset's output ID number in the resulting (maxmax).xmdf file:
<pre>"C:\TUFLOW\Releases\res_to_res\res_to_res_w64.exe" -xnfo (maxmax).xmdf</pre>
*Convert the resulting dataset to a preferred grid format for GIS use using the <u>[[TUFLOW_to_GIS#Introduction | TUFLOW to GIS]]</u> utility.
 
:Note: For non-cumulative datasets, this method does not capture the true maximum, however can be close enough with a fine map output interval.
Line 80:
== Why are the values of the mapped water level results (h_max) lower than the terrain elevations (DEM_Z)? ==
 
As atof TUFLOW Buildversion 252025.1.1, there is a current limitation foraffecting result outputs atfor shallow sheet flow cells on steeper terrain in sub-grid-scale sampling (SGS) enabled models. Direct rainfall models are particularly prone to result inproducing substantial extentsareas of shallow sheet flow.
 
In TUFLOW HPC, the cell averaged depth is used computationally and by default in the depth outputs (see below).