Tutorial M11 002 Results QGIS update V2 draft

Introduction

QGIS is used to view the water level in the 1D network, moving between the 1D and 2D and in the 2D floodplain using TUFLOW Viewer 2. For viewing of the 2D map results, see Module 1.

Method

Inspect water level and velocity outputs:

1. Open the Map Outputs results, either:
   • Within the QGIS Browser Panel drag the following layers into the QGIS workspace, or

   • Module_11\TUFLOW\results\M10_5m_002.xmdf > loads the map output

   • In File Explorer, navigate to the files above and drag and drop them into the QGIS workspace.
2. In the Layer Panel, click on M11_5m_002 then in the Layer Styling panel, select the 'Water Level' and 'Vector Velocity' output type in the Result Type panel. The resolution of the vector velocity is different between the 1D and 2D sections. The 1D section shows vectors at the water level lines (2d_WLL) every 2.5m, the 2D section shows vectors based on the 2D cell resolution, every 5m. The direction of the vectors shows water moving between the 1D and 2D domain.
3. Use the Time Series Plot tool to plot a time series of flow through the 1D bridge and weir at the downstream crossing. Select 'Flow' from the Data Types panel. Water is overtopping the bridge through the 1D weir:
   
   
   
   

   
   

4. Use the Time Series Plot tool to plot a time series of flow through the 1D bridge at the upstream crossing. Select 'Flow' from the Data Types panel. Water is overtopping the bridge in 2D:
   
   
   
   

Conclusion

• Water level and velocity map outputs from the 1D and 2D were inspected.
• Time series of flow was inspected at the both bridges and the weir.
• For further functionality, see TUFLOW Viewer 2 documentation.

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