FM Tutorial M02 QGIS GPKG Boundary Conditions - Revision history

Tuflowduncan at 17:59, 25 September 2025

2025-09-25T17:59:23Z

← Older revision		Revision as of 03:59, 26 September 2025
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	<br>{{Video\|name= Define Boundary Conditions Module 02 QGIS GPKG.mp4 \|width=1123}}<br>		<br>{{Video\|name= Define Boundary Conditions Module 02 QGIS GPKG.mp4 \|width=1123}}<br>

	<br>
	<li>Save the layer '''2d_sa_FMT_M02_001_R'''. <br>		<li>Save the layer '''2d_sa_FMT_M02_001_R'''. <br>
	<br>

	=Conclusion=		=Conclusion=
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	\|uplink=[[Flood_Modeller_Tutorial_Module02_Provisional\| Back to Tutorial Module 02 Main Page]]		\|uplink=[[Flood_Modeller_Tutorial_Module02_Provisional\| Back to Tutorial Module 02 Main Page]]
	}}		}}


	</ol>		</ol>

Tuflowduncan: /* Conclusion */

2025-09-25T17:59:04Z

Conclusion

← Older revision		Revision as of 03:59, 26 September 2025
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	=Conclusion=		=Conclusion=
	A GIS layer has been created containing four polygons in a 2d_sa layer over the location of the proposed development. The existing boundary conditions database (bc_dbase) has been modified to link these four GIS objects to hydrographs within an external csv file. Please return to the main page of the [[Flood Modeller Tutorial Module02_Provisional#Flood Modeller 1D/ESTRY 1D Link \| Flood Modeller Tutorial 2]].		A GIS layer has been created containing four polygons in a 2d_sa layer over the location of the proposed development. The existing boundary conditions database (bc_dbase) has been modified to link these four GIS objects to hydrographs within an external csv file. Please return to the main page of the [[Flood Modeller Tutorial Module02_Provisional#Flood Modeller 1D/ESTRY 1D Link \| Flood Modeller Tutorial 2]].

			{{Tips Navigation
			\|uplink=[[Flood_Modeller_Tutorial_Module02_Provisional\| Back to Tutorial Module 02 Main Page]]
			}}

	</ol>		</ol>

RussellGardner at 16:29, 2 July 2025

2025-07-02T16:29:42Z

← Older revision		Revision as of 02:29, 3 July 2025
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	<li>Save the bc_dbase as '''bc_dbase_FMT_M02.csv'''. It is now ready to be used within the model.		<li>Save the bc_dbase as '''bc_dbase_FMT_M02.csv'''. It is now ready to be used within the model.
	<br>		<br>
	<li>~~Copy~~ the layer '''2d_sa_FMT_M02_001_R.shp''' within the '''Module_data\Module_02\Inflow~~''' folder into the '''TUFLOW\model\gis~~''' folder.		<li>Open the layer '''2d_sa_FMT_M02_001_R.shp''' in QGIS. This layer is located within within the '''Module_data\Module_02\Inflow''' folder.
		⚫	<li>Drag and drop the layer '''2d_sa_FMT_M02_001_R.shp''' into the project GeoPackage file <b>M02_5m_002.gpkg</b> in the Browser Panel.
⚫	<li>~~Open the~~ layer in ~~QGIS.~~ ~~Four~~ polygons have been digitised over the location of the proposed development. Each polygon represents a sub-catchment to which different inflow boundaries will be associated.
	<li>~~Drag and drop~~ the layer '''2d_sa_FMT_M02_001_R.shp''' ~~into~~ the project GeoPackage file <b>M02_5m_002.gpkg</b> ~~in the Browser Panel~~. ~~Close the layer in QGIS.~~		<li>Close the layer '''2d_sa_FMT_M02_001_R.shp''' in the Layers Panel and reload it from the project GeoPackage file <b>M02_5m_002.gpkg</b>.
		⚫	<li>The layer '''2d_sa_FMT_M02_001_R''' is made up of four polygons that have been digitised over the location of the proposed development. Each polygon represents a sub-catchment to which different inflow boundaries will be associated.
⚫	<li>~~Reload~~ the layer '''2d_sa_FMT_M02_001_R''' ~~within QGIS from~~ the project GeoPackage file <b>M02_5m_002.gpkg</b>
	<li>Turn on Toggle Editing mode. Populate the first and only attribute of each polygon with the name of the inflow boundary . The next steps of this module will link these boundary names with an inflow using the bc_dbase located in '''TUFLOW\bc_dbase''' . <br>		<li>Turn on Toggle Editing mode. Populate the first and only attribute of each polygon with the name of the inflow boundary . The next steps of this module will link these boundary names with an inflow using the bc_dbase located in '''TUFLOW\bc_dbase''' . <br>
	<br>		<br>

RussellGardner: Created page with "
=Introduction= This page details the method for using QGIS to create the GIS based boundary layer. The layer will be populated with the name of each inflow boundary which..."

2025-07-02T14:38:52Z

Created page with "<ol> =Introduction= This page details the method for using QGIS to create the GIS based boundary layer. The layer will be populated with the name of each inflow boundary which..."

New page

<ol>
=Introduction=
This page details the method for using QGIS to create the GIS based boundary layer. The layer will be populated with the name of each inflow boundary which will be linked to the boundary database in the following steps of this module. The created boundary will be applied as a source-area boundary in a 2d_sa layer. 
=Method=
'''Boundary Condition Database'''
<li>Copy the file '''100yr2hr_loc.csv''' from '''Module_data\Module_02\Inflow''' and place it into the '''TUFLOW\model\bc_dbase''' folder. This file contains the four hydrographs that will be used.
<li>Open up the latest version of the boundary condition database. This is located within the '''TUFLOW\model\bc_dbase folder''' and is called '''bc_dbase_FMT_M01.csv'''.
<li>We need to add four additional rows to the file which reference four additional inflows. The revised bc_dbase should look like the figure below: 
 
[[File:100yr2hr_loc_csv.png]] 
 
The hydrographs applied to each of the 2d_sa polygons are contained within the source file '''100yr2hr_loc.csv'''. 
[[File:100yr2hr loc.PNG|800px]]
 
<li>Save the bc_dbase as '''bc_dbase_FMT_M02.csv'''. It is now ready to be used within the model.
 
<li>Copy the layer '''2d_sa_FMT_M02_001_R.shp''' within the '''Module_data\Module_02\Inflow''' folder into the '''TUFLOW\model\gis''' folder.
<li>Open the layer in QGIS. Four polygons have been digitised over the location of the proposed development. Each polygon represents a sub-catchment to which different inflow boundaries will be associated.
<li>Drag and drop the layer '''2d_sa_FMT_M02_001_R.shp''' into the project GeoPackage file M02_5m_002.gpkg in the Browser Panel. Close the layer in QGIS.
<li>Reload the layer '''2d_sa_FMT_M02_001_R''' within QGIS from the project GeoPackage file M02_5m_002.gpkg
<li>Turn on Toggle Editing mode. Populate the first and only attribute of each polygon with the name of the inflow boundary . The next steps of this module will link these boundary names with an inflow using the bc_dbase located in '''TUFLOW\bc_dbase''' . 
 
[[File:M07 SA polygons QGIS.png|700px]]

 {{Video|name= Define Boundary Conditions Module 02 QGIS GPKG.mp4 |width=1123}} 

 
<li>Save the layer '''2d_sa_FMT_M02_001_R'''. 
 

=Conclusion=
A GIS layer has been created containing four polygons in a 2d_sa layer over the location of the proposed development. The existing boundary conditions database (bc_dbase) has been modified to link these four GIS objects to hydrographs within an external csv file. Please return to the main page of the [[Flood Modeller Tutorial Module02_Provisional#Flood Modeller 1D/ESTRY 1D Link | Flood Modeller Tutorial 2]].

</ol>

FM Tutorial M02 QGIS GPKG Boundary Conditions - Revision history

Tuflowduncan at 17:59, 25 September 2025

Tuflowduncan: /* Conclusion */

RussellGardner at 16:29, 2 July 2025

RussellGardner: Created page with " =Introduction= This page details the method for using QGIS to create the GIS based boundary layer. The layer will be populated with the name of each inflow boundary which..."

RussellGardner: Created page with "
=Introduction= This page details the method for using QGIS to create the GIS based boundary layer. The layer will be populated with the name of each inflow boundary which..."