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TUFLOW CATCH Tutorial M02 GIS Inputs QGIS: Difference between revisions

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== 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. TUFLOW CATCH will write an interventions summary that describes the total flows, masses entering and masses removed for all intervention devices and pollutants. <br>
 
Create the 2d_im layer using the TUFLOW CATCH plugin:
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<li>In the QGIS Layers panel, select (left click) '''2d_im_TC02_001_L''' and toggle on editing.
<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, 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'.
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