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Created page with "<ol> =Introduction= In this tutorial model we will complete a simplistic flood impact assessment. We will start with the model developed in Module 4 and..."
 
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<ol>
=Introduction=
In this tutorial model we will complete a simplistic flood impact assessment. We will start with the model developed in [[Tutorial Module04Module04_Archive|Module 4]] and modify this to represent a "developed" scenario. This will involve changing the geometry in the 2D model domain to:<br>
* Remove a portion of the area from the floodplain (fill for development); and
* Lower an area to increase conveyance.
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=GIS Inputs=
We have provided the location of the proposed development in the module data under '''Module_Data\Module_05\'''. Two GIS layers have been provided, '''Fill_Area''' and '''Cut_Area'''. For this impact assessment the fill area is to be removed from the floodplain for the 100 year Average Recurrence Interval (ARI) event being modelled. The cut area will have 1 m removed from the existing ground surface to increase the conveyance in the area. To make the GIS changes, please select your GIS package from the list below:
*[[Tute_M05_MI_2d_zshTute_M05_MI_2d_zsh_Archive | MapInfo]]
*[[Tute_M05_ArcQGIS_2d_zshTute_M05_ArcQGIS_2d_zsh_Archive | ArcGIS or QGIS]]
[[File:Tute M05 Development Areas.JPG|600px]]
 
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* Create separate control files for each simulation; or
* Run multiple simulations from the same control file (.tcf) using simple logic statements
For this tutorial we will use the second approach. We will describe the logic as we progress through this tutorial, however, there isare more detaildetails in Sectionthe 4<u>[https://docs.12tuflow.2 of the 2010com/classic-hpc/manual/latest/ TUFLOW manualManual]</u>. For this tutorial we will run two versions of the simulation, called '''EXG''' and '''DEV'''. The "EXG" case represents the existing or base case scenario. The models have the same boundaries, extents and DEM; the only difference will be that the "DEV" case has an additional layer to represent the proposed changes to the topography.
<ol>
<li>Save a copy of the TUFLOW Control File from module 4 ('''M04_5m_001.tcf''') as '''M05_5m_~s1~_001.tcf'''.<br>
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==SMS==
SMS allows the user to easily compare datasets for the temporal and maximums data. To step through the process please see the following page.
*[[Tute_M05_impact_calculation_in_SMSTute_M05_impact_calculation_in_SMS_Archive | Flood afflux calculation in SMS]]
 
==GIS==
The TUFLOW to GIS utility can be used to export the results into GIS format as a raster dataset. Within your GIS package a grid calculation is performed to calculate the difference in peak water level. The first step in this process is to use the TUFLOW to GIS utility to create the gridded results files. Use of the utility was described in <u>[[Tutorial_Module01Tutorial_Module01_Archive#Viewing_the_ResultsViewing_Results | tutorial moduleModule 1]]</u>. There is also a separate page discussing the [[TUFLOW_to_GIS | TUFLOW to GIS utility.]]<br>
For this tutorial we will convert the peak water level results to raster grids using a batch file:<br>
<ol>
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To perform the GIS calculation please select your GIS package below:
*[[Tute_M05_Calculate_Afflux_MapInfoTute_M05_Calculate_Afflux_MapInfo_Archive | MapInfo (Vertical Mapper)]]
*[[Tute_M05_Calculate_Afflux_ArcTute_M05_Calculate_Afflux_Arc_Archive | ArcMap]]
*[[Tute_M05_Calculate_Afflux_QGISTute_M05_Calculate_Afflux_QGIS_Archive | QGIS]]
 
==TUFLOW Utilities==
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If the TUFLOW simulation fails to start TUFLOW will output the error in a number of locations. Firstly, check the Console Window or the TUFLOW Log File (.tlf) (located in the '''TUFLOW\runs\log\''' folder with the name '''M05_5m_001.tlf'''). This file can be opened in a text editor and the error is generally located at the end of the file. You can however search for "Error" if you can not see the error. In most cases there is also a spatial location for the error message (if the error reported in the log file is prefixed by XY:). To check the location of the geographic errors, open the '''M05_5m_001_messages.mif''' or '''M05_5m_001_messages_P.shp''' file in your GIS package.<br>
<br>
This section contains links to some possible problems that may occur when progressing through the fifth tutorial module. If you experience an issue that is not detailed below, please email [mailto:support@tuflow.com support@tuflow.com].<br>
 
*[[Save_Date_ErrorSave_Date_Error_Archive|Save date of .tab file is later than .mif or .mid]]
*[[Model_Changes_Not_SeenModel_Changes_Not_Seen_Archive | When reviewing check files or results, I can't see the changes]]
<br>
 
= Advanced - HPC Solver (Optional) =
This section introduces how to run the model using TUFLOW’s HPC (Heavily Parallelised Compute) solver with scenario control. It is much more convenient to select the model solver using scenario control than how it was done in the previous tutorials, because you only need to create one .tcf file for both the HPC and/or Classic simulations.
 
Please see [[HPC_Features_Archive | HPC Features Archive]] for more information on TUFLOW HPC features supported in the 2017 release.
 
==Model Setup==
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==Results==
Using the methods described above in the <u>[[Tutorial_Module01Tutorial_Module01_Archive#Viewing_Results | Viewing Results]]</u> section of Module 1.
* Check the simulation logs in the DOSconsole window, .tlf and .hpc.tlf log files.
* View the results in your preferred package.
Do the logs and results appear different to the TUFLOW Classic simulation?
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</ol>
<br>
If you experience an issue that is not detailed above please send an email to [mailto:support@tuflow.com support@tuflow.com]<br>
</ol>
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