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| ==Using the CSDMS Modeling Tool: Runoff Modeling with TOPOFLOW==
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| '''STEP1 Load the TOPOFLOW project'''
| | Please see the |
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| | [[PyMT]] |
| Go to the CMT Workspace and Open TOPOFLOW Project
| | page for information on the Python Modeling Toolkit, |
| Now you are in the CSDMS Modeling Tool. It will automatically start up in the CMT Help, for the exercises we will use the ‘CMT Workspace’.
| | the successor to CMT. |
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| • Under the File Menu, choose ‘Open project’.<br>
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| • Go to the Terrestrial Group. Open Project: TOPOFLOW + GC2D.<br>
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| You are ready to import examples, adapt and run simulations
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| We will use the hydrological toolkit called ‘TOPOFLOW’ as an example to explore how CMT works, and what component modeling is all about.
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| '''STEP2 Run and visualize a TOPOFLOW simulation'''
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| Under the File menu, choose ‘Open Example Configuration’. Here examples of previously wired model simulations are stored. These files are called *.bld files.
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| >> Open the directory for TOPOFLOW. <br>
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| >> Find the subdirectory 00_Oct_27_2011<br>
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| >> Click on the ‘bld’ file named: Treynor_June_20_67_Storm_Oct_27_11.bld <br>
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| The Bld file brings up the pre-wired configuration as shown below. The TOPOFLOW component is the driver of this simulation. It needs to get values for all ‘Uses Ports’ on the righthand side of the component, i.e. meteorology, channels, snow…etcetera. The components in the Arena provide this information to the main driver.
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| [[File:SceenshotTopoflow1.png|800px]] | |
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| This pre-wired TOPOFLOW simulation models a rainfall events in a small Agricultural Research Service watershed located near Treynor, Iowa. Data from Treynor watershed are ‘classic’ datasets that have become benchmark test cases for hydrological runoff and watershed models. The watershed was ~0.43 km2. Basin geometry parameters we will not be able to change in this hands-on, but you can normally load a relevant DEM. All parameters that are shown by default in the CMT for this TOPOFLOW Configurations are based on the benchmark data for a measured rainstorm on June 20th, 1967.
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