Tutorial M10 003 GIS Inputs QGIS: Difference between revisions
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= Method =
Navigate to the '''Module_10\Tutorial_Data''' folder. Copy and save all the below layers into the '''Module_10\TUFLOW\model\gis''' folder:
:*'''1d_nwk_M10_piping_003_L'''
:*'''1d_nwk_M10_dambreak_003_L'''
:*'''2d_bc_M10_piping_dambreak_003_L'''
Investigate the supplied files:
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:*Drag and drop the .shp files into the QGIS workspace; or
:*Select Layer > Add layer > Add Vector Layer and navigate to the '''Module_10\TUFLOW\model\gis''' folder.
<li>The '''1d_nwk_M10_piping_003_L''' layer represents piping through the dam wall:
:*ID = Unique Channel ID.
:*Type = 'PF'.
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:*Height_or_WF = Height of the piping orifice when fully breached.<br>
<br>
{{Video|name=Animation_M10_003_GIS_01h.mp4|width=1223}}<br>
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<li>The '''1d_nwk_M10_dambreak_003_L''' layer represents a 1D operational channel to model dam break in 1D:
:*ID = Unique Channel ID.
:*Type = 'DF'.
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:*Width_or_Dia = Top width of the dam failure channel.
:*Height_or_WF = Weir coefficient Cd of the intact part.<br>
See Section
<br>
{{Video|name=Animation_M10_003_GIS_02h.mp4|width=1223}}<br>
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<li>It is recommended to have a grd_check file from a previous run (with the same model cell size) turned on when digitising SX lines as the number of cells selected must correspond to the dimensions of the 1D structure. In this module, the 'Top Width Fully Breached' specified in the TOC is 25m, therefore 5 cells are selected:<br>
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