Difference between revisions of "TUFLOW CATCH Tutorial M02 GIS Inputs QGIS"
Jump to navigation
Jump to search
| Line 4: | Line 4: | ||
== Create Interventions == | == Create Interventions == | ||
| − | An interventions (2d_im) layer contains one or more lines, called devices. In the TUFLOW CATCH Control file, mass removal properties are assigned to these devices. | + | An interventions (2d_im) layer contains one or more lines, called devices. In the TUFLOW CATCH Control file, mass removal properties are assigned to each of these devices. <br> |
Create the 2d_im layer using the TUFLOW CATCH plugin: | Create the 2d_im layer using the TUFLOW CATCH plugin: | ||
| Line 28: | Line 28: | ||
<li>In the QGIS Layers panel, select (left click) '''2d_im_TC02_001_L''' and toggle on editing. | <li>In the QGIS Layers panel, select (left click) '''2d_im_TC02_001_L''' and toggle on editing. | ||
<li>Select 'Add Line Feature'. | <li>Select 'Add Line Feature'. | ||
| − | <li>Digitise a line around the corner of the paddock with material ID 9 (paddockD). Use the right mouse button to terminate the line | + | <li>Digitise a line around the corner of the paddock with material ID 9 (paddockD). Use the right mouse button to terminate the line and an attributes dialog will appear. Set the ID to 'trench1' and click 'OK'. |
<li>Repeat the same process as above to digitise a line between the road and the paddock with material ID 7 (paddockB). Set the ID to 'retentionBasin'. | <li>Repeat the same process as above to digitise a line between the road and the paddock with material ID 7 (paddockB). Set the ID to 'retentionBasin'. | ||
<br> | <br> | ||
Revision as of 16:25, 14 May 2025
Page Under Construction
Introduction
An interventions (2d_im) layer is created to remove pollutants from the run off around the paddocks and within the waterway.
Create Interventions
An interventions (2d_im) layer contains one or more lines, called devices. In the TUFLOW CATCH Control file, mass removal properties are assigned to each of these devices.
Create the 2d_im layer using the TUFLOW CATCH plugin:
- Go to Processing > Toolbox from the top dropdown menu options to open the Processing Toolbox.
- Go to TUFLOW Catch in the processing tool list and select 'Import Empty'. This opens the dialog shown below.
- Project Directory: Click ..., and navigate to the TUFLOW_CATCH_Module_02\Modelling folder.
- Empty Type: Click ..., and tick on '2d_im' from the empty type list.
- Geometry Type: Click ..., and tick on 'Line'.
- Run ID: TC02_001
- Click 'Run'. Once the tool has finished, click 'Close'. The 2d_im_TC02_001_L will appear in the QGIS Layers panel.
File:Image of dialog
To help determine where the intervention devices should be placed, load in the following files:
- 2d_mat_TC01_001_R.shp from the TUFLOW\model\gis folder
- TC01_001_catchment_hydraulic_d_Max.tif from the TUFLOW_CATCH_Module_01\Modelling\TUFLOWCATCH\results\grids folder
Create interventions:
- In the QGIS Layers panel, select (left click) 2d_im_TC02_001_L and toggle on editing.
- Select 'Add Line Feature'.
- Digitise a line around the corner of the paddock with material ID 9 (paddockD). Use the right mouse button to terminate the line and an attributes dialog will appear. Set the ID to 'trench1' and click 'OK'.
- Repeat the same process as above to digitise a line between the road and the paddock with material ID 7 (paddockB). Set the ID to 'retentionBasin'.
- Zoom in to the downstream end of the model. Use the TC01_001_catchment_hydraulic_d_Max.tif to determine where the water will be flowing. Using the same process as above, digitise a line perpendicular to the water on the western side of the stream. Set the ID to 'bufferStrip1'.
- Create two more intervention devices with ID's 'trench2' and 'bufferStrip2'. Use the image below as a guide.
File:Image of devices with labels turned on
- Once all the devices have been created, turn off editing to save the edits.
| Up |
|---|
 Back to TUFLOW CATCH Tutorial 2
|