Difference between revisions of "Tutorial M04 002 Check Files QGIS draft"

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(Created page with "= Introduction = QGIS is used to import the check files and review the topographic modification cutting through the embankment, and the layered flow constriction. <br> <br> =...")
 
 
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= Introduction =
 
= Introduction =
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QGIS is used to import the check files and review the topographic modification cutting through the embankment, and the layered flow constriction. <br>
+
QGIS is used to import the check files and review the topographic modification cutting through the embankment, and the 2d bridge. <br>
 
<br>
 
<br>
  
 
= Method =
 
= Method =
 
This tutorial introduces:
 
This tutorial introduces:
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:*[[Check_Files_2d_DEM_Z | _DEM_Z]]
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:*[[Check_Files_2d_bg_uvpt_check | _bg_uvpt_check_P]]
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:*[[Check_Files_2d_zsh_zpt | _zsh_zpt_check_P]]
 
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:*[[Check_Files_2d_lfcsh_uvpt | _lfcsh_uvpt_check_P]]
 
  
 
Review the check files:
 
Review the check files:
 
<ol>
 
<ol>
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<li>Open the following files from the '''Module_04\TUFLOW\check''' folder:
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<li>Open the following file from the '''Module_04\TUFLOW\check''' folder:  
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*'''M04_5m_001_DEM_Z.tif'''
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*'''M04_5m_002_bg_uvpt_check_P.shp'''
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*'''M04_5m_001_zsh_zpt_check_P.shp'''
 
−
*'''M04_5m_001_lfcsh_uvpt_check_P.shp'''
 
 
<li>Use the 'Apply TUFLOW Styles to Open Layers'.
 
<li>Use the 'Apply TUFLOW Styles to Open Layers'.
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<li>The DEM_Z grid shows the final elevations used for the model calculations. Change the styling and inspect the area of the embankment is lowered. See <u>[[Tutorial_M02_001_Check_Files_QGIS | Module 2]]</u> for more information on how to review topographic modifications. Note: The DEM_Z appears different to the input DEM as the resolution of the DEM_Z is coarser (2.5m) than the input file (0.5m).<br>
+
<li>The bg_uvpt_check file shows the Zpts where the 2d_bg is applied as a thin line. Only the cell sides have the flow constriction applied. The attribute table shows the values specified in the 2d_bg and the final elevation of the invert level after applying the Z shape. <br>
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<li>The zsh_zpt_check file displays the elevation points changed by Z shape topographic update and the TUFLOW styling provides an indication of the elevation difference.<br>
 
 
<br>
 
<br>
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{{Video|name=Animation_M04_Check_01c.mp4|width=1280}}<br>
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{{Video|name=Tutorial M04 002 Check Files QGIS draft_2a.mp4|width=1350}}
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<br>
 
−
<li>The lfcsh_uvpt_check file shows the Zpts where the 2d_lfcsh is applied as a thin line. Only the cell sides have the flow constriction applied. The attribute table shows the values specified in the 2d_lfcsh and the final elevation of the invert level after applying the Z shape. <br>
 
−
<br>
 
−
{{Video|name=Animation_M04_Check_02e.mp4|width=1280}}
 
 
</ol>
 
</ol>
 
<br>
 
<br>
  
 
= Conclusion =  
 
= Conclusion =  
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:*The DEM_Z and zsh_zpt_check file was used to ensure the cut through was correctly applied to allow flow through the embankment.
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:*The bg_uvpt_check was viewed showing the form losses and blockages applied to the thin line.
−
:*The lfcsh_uvpt_check was viewed showing the form losses and blockages applied to the thin line.
 
 
<br>
 
<br>
 
{{Tips Navigation
 
{{Tips Navigation
 
|uplink=[[Tutorial_M04#Check_Files| Back to Module 4 Main Page]]
 
|uplink=[[Tutorial_M04#Check_Files| Back to Module 4 Main Page]]
 
}}
 
}}

Latest revision as of 11:32, 4 June 2025

Introduction

QGIS is used to import the check files and review the topographic modification cutting through the embankment, and the 2d bridge.

Method

This tutorial introduces:

Review the check files:

  1. Open the following file from the Module_04\TUFLOW\check folder:
    • M04_5m_002_bg_uvpt_check_P.shp
  2. Use the 'Apply TUFLOW Styles to Open Layers'.
  3. The bg_uvpt_check file shows the Zpts where the 2d_bg is applied as a thin line. Only the cell sides have the flow constriction applied. The attribute table shows the values specified in the 2d_bg and the final elevation of the invert level after applying the Z shape.


Conclusion

  • The bg_uvpt_check was viewed showing the form losses and blockages applied to the thin line.


Up
Go-up.png Back to Module 4 Main Page
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