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WinTR-20 Project Formulation Hydrology Computer Program

Learn to create input file, run WinTR-20 program and view output. Includes an example with 3 sub-areas and storm analysis.

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WinTR-20 Project Formulation Hydrology Computer Program

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  1. WinTR-20Project Formulation HydrologyComputer Program Basic Input and Output Presented by: WinTR-20 Development Team

  2. This presentation demonstrates the new WinTR-20 computer program model. Using a simple example, you will learn how to: • Create an Input File • Run WinTR-20 • View Output WinTR-20 Basic Input & Output March 2009

  3. Example Problem • 3 Sub-Areas - Sub-Area 1 contains a floodwater retarding structure. • Storm Analysis - Determine peak flows for 5- and 100-year, 24-hour rainfalls. Assume the site is located in a Type II Rainfall Distribution area. WinTR-20 Basic Input & Output March 2009

  4. Schematic For Example Problem Sub-Area 2 Reach 2 Outlet (ReachRouting) Sub-Area 3 Reach 1 (StorageRouting) Legend Sub-Area 1 Storage Structure Sub-Area Inflow Points WinTR-20 Basic Input & Output March 2009

  5. Data Sources • The data presented in the next 5 slides have been gathered prior to inputting into WinTR-20. • The data includes: • Sub-Area Watershed Characteristics • Stream Reach Hydraulics • Storage Structure Hydraulics • Evaluation Storm Amounts and Distribution WinTR-20 Basic Input & Output March 2009

  6. Sub-Area Parameters WinTR-20 Basic Input & Output March 2009

  7. Reach Parameters WinTR-20 Basic Input & Output March 2009

  8. Reach 1 Structure Data • Example problem assumes pool is empty (EL 2423.0) when storm begins. WinTR-20 Basic Input & Output March 2009

  9. Reach 2 Rating Table • Data derived from HECRAS, Manning’s, etc. • Reach Length = 5400 feet, Bankfull Elevation = 2422.5 WinTR-20 Basic Input & Output March 2009

  10. Storm Data • 5-Year 24-hour Rainfall Amount = 3.7” • 100-year 24-hour Rainfall Amount = 6.2” • Use Type II 24-hour Rainfall Distribution (built into WinTR-20) WinTR-20 Basic Input & Output March 2009

  11. Getting Started - The Initial WinTR-20 Editor Screen • Using Windows Explorer, go to the “WinTR-20 Executables” directory and click on • The following WinTR-20 System Controller/ Editor Screen comes up: WinTR-20 Basic Input & Output March 2009

  12. WinTR-20 System Controller / Editor Window • Click on the “File” menu, select “New WinTR-20 File” WinTR-20 Basic Input & Output March 2009

  13. WinTR-20 Identifier Record • WinTR-20 Identifier will appear. • Select “Input Units Code:” and “Output Units Code:” (English or Metric) • Enter “Minimum Hydrograph Value:” • Enter “Watershed Description:” • “Accept Changes (Close)” button to complete this record. WinTR-20 Basic Input & Output March 2009

  14. Suggested Input Entry Order • Enter storm event data • Enter all sub-area(s) information • Enter all reach(es) information • Enter cross section rating data (elev, discharge, end area, top width, friction slope) and storage rating data (elev, discharge, storage) if model has reach or storage routing • Global output preferences WinTR-20 Basic Input & Output March 2009

  15. Entering Storm Data • Select “Storm Analysis:” to enter rainfall amounts and distribution. WinTR-20 Basic Input & Output March 2009

  16. Storm Data • 5-Year 24-hour Rainfall Amount = 3.7” • 100-year 24-hour Rainfall Amount = 6.2” • Use Type II 24-hour Rainfall Distribution (built-in to WinTR-20) WinTR-20 Basic Input & Output March 2009

  17. Entering Storm Data • Enter the 5- and 100-year rainfall amounts, distribution type, and Antecedent Runoff Condition (ARC - Default is 2). • The “Storm Identifier:” can be any alpha-numeric string. • The screen to the right shows the user selecting the Type II Rainfall Distribution from the pull-down menu. WinTR-20 Basic Input & Output March 2009

  18. Entering Storm Data • The screen to the right shows the “Storm Analysis:” window after data has been entered for both events. • The data entry is completed by clicking “Accept Changes (Close)” button. WinTR-20 Basic Input & Output March 2009

  19. Entering Storm Data • Storm Analysis Input Notes • “Rain Gage Identifier:” is not required if WinTR-20 is executed using the same rainfall amount and distribution over the entire watershed. • “2-Yr 24-Hr Rainfall:” is not required unless the Time of Concentration computation option for any Sub-Area is used. WinTR-20 Basic Input & Output March 2009

  20. Enter Sub-Area Data • Enter Sub-Area data by clicking on “Sub-Area:” WinTR-20 Basic Input & Output March 2009

  21. Entering Sub-Area Data • Enter data as shown for all three Sub-Areas. • “Sub-Area” and “Sub-Area Reach Identifier:” are user defined alpha-numeric names. • “Sub-Area Reach Identifier:” refers to the Reach that will receive the Sub-Area’s hydrograph. WinTR-20 Basic Input & Output March 2009

  22. Entering Sub-Area Data • If a single rainfall distribution is being used for the whole watershed, “Rain Gage Identifier:” is left blank • Note output being requested for this Sub-Area: Peak Flow and Hydrograph WinTR-20 Basic Input & Output March 2009

  23. Entering Sub-Area Data (continued) • After data for Area 1 has been entered, simply highlight the box containing “Area 1” then type “Area 2”. Begin entering Area 2’s data. Repeat for “Area 3”. Click “Accept Changes (Close)” button when finished. WinTR-20 Basic Input & Output March 2009

  24. Getting Help • To get help at any time on input parameters, simply click on the text for that input. • A screen then appears with a description of the parameter. • To close the help window, click on the input text line again. WinTR-20 Basic Input & Output March 2009

  25. Sub-Area Parameters WinTR-20 Basic Input & Output March 2009

  26. Entering Stream Reach Data • After all the Sub-Area data has been entered and accepted, the user is returned to the main input editor menu. • Next, click on “Stream Reach:” to enter reach data. WinTR-20 Basic Input & Output March 2009

  27. Entering Stream Reach Data • Use pull down menu to select the stream reach needing input. • The names that will appear in this pull down menu were defined during the Sub-Area data entry section (“Sub-Area Reach Identifier:”). WinTR-20 Basic Input & Output March 2009

  28. Reach Parameters WinTR-20 Basic Input & Output March 2009

  29. Entering Stream Reach 1 Data • “Reach 2” is the receiving reach for “Reach 1”. • “Reach 1” is a structure-type routing. The structure rating data (entered later) will be identified as “Struct 1”. • Since this is a structure routing, no channel or valley lengths are used. WinTR-20 Basic Input & Output March 2009

  30. Entering Stream Reach 2 Data • “Outlet” (end of the watershed) is the receiving reach for “Reach 2”. • “Reach 2” is a channel-type routing. The channel rating data (entered later) will be identified as “Xsec 2”. • Channel and valley lengths are the same in this example. No baseflow is assumed for this reach. WinTR-20 Basic Input & Output March 2009

  31. Entering Structure Data • After the “Stream Data” was entered and accepted, select “Structure Rating” from the main window. • From the pull-down menu “Struct 1” is selected. WinTR-20 Basic Input & Output March 2009

  32. Reach 1 Structure Data • Example problem assumes pool is empty (EL 2423.0) when storm begins. WinTR-20 Basic Input & Output March 2009

  33. Entering Structure Data • This example has WinTR-20 start the routing at the lowest elevation. • Enter data one line at time for the Structure Elevation, Discharge and Storage • The user can click on “Display Data” for a graphical view of the data just input. • Click on “Accept Changes (Close)” button when finished. WinTR-20 Basic Input & Output March 2009

  34. Entering Stream Cross Section Data • After the Structure Data was entered and accepted, the user is ready to enter the stream cross section data. The user selects “Stream Cross Section:” WinTR-20 Basic Input & Output March 2009

  35. Entering Stream Cross Section Data • On the pull down menu, “Xsec 2” is selected. WinTR-20 Basic Input & Output March 2009

  36. Reach 2 Rating Table • Data derived from HEC-RAS, Manning’s, etc. • Reach Length = 5400 feet, Bankfull Elevation = 2422.5 WinTR-20 Basic Input & Output March 2009

  37. Entering Stream Cross Section Data • On the pull down menu, “Xsec2” is selected. • Entered the required data. • Cross Section Data entry is similar to the Structure Data - Use entry cells to the left and enter data one line at a time. WinTR-20 Basic Input & Output March 2009

  38. Entering Stream Cross Section Data • The user can click on “Display Data” for a graphical view of the data just input. • Click on “Accept Changes (Close)” button when done WinTR-20 Basic Input & Output March 2009

  39. Entering Stream Cross Section Data • Notes on Cross Section Data: • Data usually prepared ahead of time using water surface profile programs such as HEC-RAS. • “Bankfull Elevation” represents the right or left channel bank whichever is lower. • Low ground represents the elevation where flood plain storage begins. If blank, it defaults to bankfull elevation. • Stream Identifier and Stream Station may be left blank (used only for NRCS Economic Analysis) WinTR-20 Basic Input & Output March 2009

  40. Global Output • After the Storm Data has been entered and accepted, the user is ready to enter the Global Output. The user selects “Global Output:” WinTR-20 Basic Input & Output March 2009

  41. Global Output • Select Hydrograph Print Precision, Minimum Hydrograph Display Flow and Print Time Increment or use blank defaults. • Select output options. • At least one output option (Yes) must be selected. WinTR-20 Basic Input & Output March 2009

  42. Saving Input File • From the “File” menu, select “Save As” to give a file name and directory to save to. WinTR-20 Basic Input & Output March 2009

  43. Checking Data Prior to Running WinTR-20 • Prior to running WinTR-20, it is useful to view the watershed “Schematic”. • Under the “View” drop down menu on the Controller/ Editor screen, click on “Schematic”. WinTR-20 Basic Input & Output March 2009

  44. Checking Data Prior to Running WinTR-20 • The Schematic shows how the sub-areas and reaches are configured. • Make sure that “Legend” and “Labels” under the “View” options are turned on. WinTR-20 Basic Input & Output March 2009

  45. Running WinTR-20 • After the file has been saved, the “Run” option will show in menu bar at the top. • To run the program, simply click on the “Run”. WinTR-20 Basic Input & Output March 2009

  46. WinTR-20 Output- Printed Page File • Following a successful run, the “Printed Page File” screen comes up. • For this example, peak discharge and hydrographs were requested for all sub-areas and stream reaches. • Output can be sent to the printer or to a file from this screen. WinTR-20 Basic Input & Output March 2009

  47. WinTR-20 Output- Debug File • After viewing, the “Printed Page File” there may be other output to view. • Click View and see if there is a “Debug File”. • Output can be sent to the printer from this screen. WinTR-20 Basic Input & Output March 2009

  48. WinTR-20 Output - Plots • WinTR-20 also has graphical output capabilities. • Following a successful run, the “Plots” option can be selected ... WinTR-20 Basic Input & Output March 2009

  49. WinTR-20 Output - Plots • In this example, the Hydrograph for Sub-Area 2 100-year storm is requested. • Note: Hydrograph plots are only available if “Hydrograph Output” has been selected within the individual sub-area/stream reach or as a Global Output. WinTR-20 Basic Input & Output March 2009

  50. WinTR-20 Output - Plots • To view the Hydrograph, click on “Display” button. • Options include printing, copying, and zooming in and out. WinTR-20 Basic Input & Output March 2009

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