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TUFLOW CATCH Tutorial M01 GIS Inputs QGIS: Difference between revisions

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<font color="red"><font size=18>Page Under Construction</font></font>
== Introduction ==
The required boundary (2d_bc), materials (2d_mat) and culvert layers are supplied and inspected. The culvert layers are supplied from <u>[[Tutorial_M03 | TUFLOW Tutorial Module 3]]</u>. A receiving polygon is created to track the pollutant mass fluxes at the downstream end of the model.<br>
 
== Review Supplied Input Files ==
A number of model input files have been provided in the '''TUFLOW_CATCH_Module_01\Tutorial_Data''' folder. Copy the following GIS files into the '''Modelling\TUFLOW\model\gis''' folder:
:*'''2d_bc_TC01_001_L'''
:*'''2d_mat_TC01_001_R'''
:*'''2d_bc_M03_culverts_001_P'''
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<ol>
<li>In Windows File Explorer, navigate to the '''Modelling\TUFLOW\model\gis''' folder. Drag and drop the above layers into QGIS.
<li> Click on the 'Apply TUFLOW Styles to Open Layers' symbol from the TUFLOW Plugin toolbar.▼
<br>
[[File:tuflow_plugin_styles_open_layers.png]]<br>
<br>
<li>The '''2d_bc_TC01_001_L''' layer contains the downstream boundary:
:*It is a stage-discharge (HQ) boundary with a 1% water surface slope
:*This layer contains the downstream boundary from <u>[[Tutorial_M01 | TUFLOW Tutorial Module 1]]</u>. The upstream boundary was removed as TUFLOW CATCH does not support <font color=red>source??</font>.
<li>The '''2d_mat_TC01_001_R''' layer contains the spatial definition of material types:
:* It is a supplementary material file to '''2d_mat_M01_001_R''', which is used in the TUFLOW tutorials. For more information, refer to <u>[[Tutorial_M01_Materials_QGIS | TUFLOW Tutorial Module 1]]</u>.
:* An aerial photo of the model area was used as a guide to create the regions in this materials file. This image is supplied in the '''TUFLOW_CATCH_Tutorial_Models\Aerial_Photo''' folder.<br>▼
:* The material file is supplied with a QGIS style file (.qml) and displays the different material groups based on the Material ID.<br>▼
:* Material ID 5 represents brush, while Material IDs 6, 7, 8 and 9 represent pasture and correspond to paddocks A, B, C and D respectively. These materials are discussed in further detail later in this tutorial.
 
▲:* The material file is supplied with a QGIS style file (.qml) andwhich displaysapplies thecolouring differentand materiallabeling groups based onto the Material IDlayer.<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;→ '''<span style="color:#b300ff;">Feedback:</span>''' <span style="color:#b300ff;">Consider specifying where the QGIS style file can be found and/or how to apply it for clarity.</span>
▲:* An aerial photo of the model area was used as a guide to create the regions in this materials file.<br>
 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;→ '''<span style="color:#b300ff;">Feedback:</span>''' <span style="color:#b300ff;">Will the aerial photo be included in the files provided within the Tutorial_Data folder?</span>
 
<br>
{{Video|name=animation_TC1_GIS_inputs_01b.mp4|width=1236}}<br>
<li>The other supplied layers represent culverts. For more information, refer to <u>[[Tutorial_M03#GIS_Inputs | TUFLOW Tutorial Module 3]]</u>.<br>
▲<li>'''Note:''' Click onUse the 'Apply TUFLOW Styles to OpenCurrent LayersLayer' symboltool from the TUFLOW Plugin toolbar to apply styling to the culvert layers. <br>
<br>
{{Video|name=animation_TC1_GIS_inputs_02b.mp4|width=1236}}<br>
</ol>
 
== Create Receiving Polygon ==
A receiving polygon (2d_rp) is a single polygon that covers the downstream receiving waters. The TUFLOW HPC cells within the polygon will be removedexcluded from the TUFLOW HPC simulation. TUFLOW CATCH will writegenerates summary timeseriestime series files that describereport the total water and pollutant mass fluxes entering the polygon. The receiving polygon must encompass the downstream 2d_bc boundary ('''2d_bc_TC01_001_L'''). <br>
As this polygon covers the entire downstream receiving waters, no downstream 2d_bc boundary layer is required. No upstream boundary is required either, as TUFLOW CATCH is designed for whole of catchment analysis so independent hydrologic inflows are not necessary. Due to this, the '''2d_bc_M01_001_L''' will be removed from the TUFLOW Boundary Control file later in this tutorial. <br>
 
'''<span style="color:#b300ff;">Suggestion:</span>''' <span style="color:#b300ff;">Consider re-wording of the above sentences to read as:</span> A receiving polygon ('''2d_rp''') is a single polygon that defines the downstream receiving waters. TUFLOW HPC cells within this polygon are excluded from the simulation. TUFLOW CATCH generates summary time series files that report the total water and pollutant mass fluxes entering the polygon. The receiving polygon must encompass the downstream 2d_bc boundary ('''2d_bc_TC01_001_L'''). <br>
 
Create the 2d_rp layer using the TUFLOW CATCH plugin:<br>▼
 
'''<span style="color:#b300ff;">Suggestion:</span>''' <span style="color:#b300ff;">Consider including the words receiving polygon before the mention of the layer name (2d_rp) in bold:</span>"Create the receiving polygon ('''2d_rp''') layer using the TUFLOW CATCH plugin:"<br>
 
▲Create the receiving polygon (2d_rp) layer using the TUFLOW CATCH plugin:<br>
<ol>
<li>Go to Processing > Toolbox from the top dropdown menu options to open the Processing Toolbox.
<li> Go to TUFLOW Catch in the processing tool list and select 'Import Empty'. This opens the dialog shown below.
:* Project Directory: ClickThis ...,should andautomatically navigatebe set to the '''TUFLOW_CATCH_Module_01\Modelling''' folder.
:* Empty Type: Click ..., and tick on '2d_rp' from the empty type list.
:* Geometry Type: Click ..., and tick on 'Region'.
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<li> Click 'Run'. Once the tool has finished, click 'Close'. The '''2d_rp_TC01_001_R''' will appear in the QGIS Layers panel. <br>
<br>
{{Video|name=animation_TC1_GIS_inputs_03b.mp4|width=1236}}<br>
<li>To guide the placement of the receiving polygon, it is recommended to load '''2d_code_M01_001_R.shp''' from the '''TUFLOW\model\gis''' folder into QGIS.
<br>
<li>In the QGIS Layers panel, select (left click) '''2d_rp_TC01_001_R''' and toggle on editing.
<li>Select 'Add Polygon Feature'.
<li>Digitise a polygon similar to below. EnsureUse thatthe '''2d_code_M01_001_R''' as a guide to ensure it encompassescovers the entire downstream 2d_bcreceiving waters. The polygon should encompass a portion of the downstream boundary of the '''2d_code_M01_001_R''' to ensure all receiving waters are included. In this case, the polygon should include the four most downstream vertices of the '''2d_code_M01_001_R'''. Use the right mouse button to terminate the polygon and an attributes dialog will appear. Click 'OK' with no attribute information input.
<li>Turn off editing to save the edits. <br>
<br>
{{Video|name=animation_TC1_GIS_inputs_04b.mp4|width=1236}}<br>
<br>
</ol>
 
<br>
{{Tips Navigation
|uplink=[[TUFLOW_CATCH_Tutorial_M01#GIS_Inputs| Back to TUFLOW CATCH Tutorial 101]]
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