WinTR-20 Hydrology Model Basic Tutorial USDA-NRCS WinTR-20 Hydrology Model Basic Tutorial

WinTR-20 Hydrology Model BasicWinTR-20 Hydrology Model Basic Tutorial Tutorial

USDA-NRCS USDA-NRCS WinTR-20 WinTR-20

Hydrology Model Basic Hydrology Model Basic TutorialTutorial

WinTR-20 Hydrology Model Basic TutorialWinTR-20 Hydrology Model Basic Tutorial

● This tutorial demonstrates the This tutorial demonstrates the new WinTR20 model. Using a new WinTR20 model. Using a simple example, you will learn simple example, you will learn how to:how to:

Create an Input FileCreate an Input File Run WinTR-20Run WinTR-20 View OutputView Output


Example ProblemExample Problem 3 Sub-areas3 Sub-areas

- - Sub-area 1 contains a Sub-area 1 contains a floodwater retarding floodwater retarding structure.structure.

Storm AnalysisStorm Analysis - Determine peak flows for - Determine peak flows for

5- and 100-year, 24-hour 5- and 100-year, 24-hour rainfalls. Assume the site rainfalls. Assume the site is located in a Type II is located in a Type II Rainfall Distribution area.Rainfall Distribution area.


WinTR-20 Sub-area / Reach WinTR-20 Sub-area / Reach ConceptsConcepts

● ““Stream ReachesStream Reaches” represent the main flow ” represent the main flow paths that the hydrographs are routed through. paths that the hydrographs are routed through. They can accommodate one of two forms of They can accommodate one of two forms of routing: routing: Storage RoutingStorage Routing (lakes, dams, (lakes, dams, wetlands, etc.) or wetlands, etc.) or Reach RoutingReach Routing (stream or (stream or river channels).river channels).

● All WinTR20 modeled watersheds end with the All WinTR20 modeled watersheds end with the final stream reach terminating at an “Outlet”.final stream reach terminating at an “Outlet”.


WinTR-20 Sub-area / Reach WinTR-20 Sub-area / Reach ConceptsConcepts

● WinTR20 represents the watershed as a WinTR20 represents the watershed as a system of sub-areas and reaches.system of sub-areas and reaches.

● ““Sub-areas” are the separate individual Sub-areas” are the separate individual drainage areas that generate the drainage areas that generate the hydrographs that feed into the upstream hydrographs that feed into the upstream end of a stream reach.end of a stream reach.


Schematic For Example ProblemSchematic For Example Problem

Re a

c h 1

Sub-area 1

Reach 2Sub-area 2

Sub-area 3

Outlet(Reach Routing)

(Sto

rage

Rou

ting

)

Storage Structure

Sub-Area Inflow Points

Legend


Data SourcesData Sources

● The data presented in the next 5 slides The data presented in the next 5 slides have been gathered prior to inputting into have been gathered prior to inputting into WinTR20.WinTR20.

● The data include:The data include: Sub-area Watershed Characteristics Sub-area Watershed Characteristics Stream Reach HydraulicsStream Reach Hydraulics Storage Structure HydraulicsStorage Structure Hydraulics Evaluation Storm Amounts and DistributionEvaluation Storm Amounts and Distribution


Sub-area ParametersSub-area Parameters

Sub-area ParametersSub-area Parameters Sub-area Sub-area 11

Sub-area Sub-area 22

Sub-area Sub-area 33

Drainage Area (sq.mi.)Drainage Area (sq.mi.) 1.881.88 0.510.51 1.541.54

Runoff Curve NumberRunoff Curve Number 7070 7474 7070

Time of Concentration (hr)Time of Concentration (hr) 1.231.23 0.720.72 1.591.59

Receiving Reach NumberReceiving Reach Number 11 22 OutletOutlet


Reach ParametersReach Parameters

Reach ParameterReach Parameter Reach 1Reach 1 Reach 2Reach 2

Receiving ReachReceiving Reach Reach 2Reach 2 OutletOutlet

Reach TypeReach Type StructureStructure ChannelChannel

Reach LengthReach Length NANA 5400 feet5400 feet


Reach 1 Structure DataReach 1 Structure Data Example problem assumes pool is empty (EL Example problem assumes pool is empty (EL

2423.0) when storm begins.2423.0) when storm begins.

ElevationDischarge

(cfs)Storage

(Acre Feet)

2423.0 0 0.02438.0 50 52.32440.0 57 76.62450.0 83 375.72457.5 98 600.02458.0 155 631.02459.0 370 700.02461.5 1350 915.02463.0 2100 1070.0


Reach 2 Rating TableReach 2 Rating Table

Data derived from HECRAS, Manning’s, etc.Data derived from HECRAS, Manning’s, etc. Reach Length = 5400 feet, Bankfull Elevation = 2422.5Reach Length = 5400 feet, Bankfull Elevation = 2422.5

ElevationDischarge

(cfs)End Area

(ft2)Top

Width (ft)Friction

Slope (ft/ft)

2410.0 0 0 0 0.00502411.4 25 19 23 0.00382412.3 50 41 31 0.00182413.4 100 81 42 0.00112415.1 250 170 60 0.00082416.9 500 296 78 0.00072418.2 750 404 90 0.00072419.3 1000 502 100 0.00082420.1 1250 592 109 0.00082420.9 1500 677 116 0.00082421.5 1750 755 123 0.00092422.1 2000 843 193 0.00092423.1 2500 1112 369 0.00102423.9 3000 1751 1440 0.00102424.4 3500 2739 1935 0.00082425.0 4000 3844 1994 0.0007


Storm DataStorm Data

● 5-Year 24-hour Rainfall Amount = 3.7”5-Year 24-hour Rainfall Amount = 3.7”

● 100-year 24-hour Rainfall Amount = 6.2”100-year 24-hour Rainfall Amount = 6.2”

● Use Type II 24-hour Rainfall Distribution Use Type II 24-hour Rainfall Distribution (built-in to WinTR20)(built-in to WinTR20)


Getting Started - The Initial Getting Started - The Initial WinTR-20 Editor ScreenWinTR-20 Editor Screen

● Using Windows Explorer, Using Windows Explorer, go to the “WinTR-20 go to the “WinTR-20 Executables” directory and Executables” directory and click onclick on

● The following WinTR-20 The following WinTR-20 System Controller/ Editor System Controller/ Editor Screen comes up: Screen comes up:


WinTR20 Controller / Editor Screen WinTR20 Controller / Editor Screen

● Click on the “File” menu

● From the drop down menu, select “New WinTR-20 File”


WinTR20 Identifier RecordWinTR20 Identifier Record

● The next screen to appear The next screen to appear is the WinTR-20 Identifier is the WinTR-20 Identifier Record.Record.

● Enter the units to use Enter the units to use (English or Metric), (English or Metric), Minimum Hydrograph Minimum Hydrograph Value (when to begin and Value (when to begin and end display of hydrograph) end display of hydrograph) and a watershed and a watershed description.description.

● ““Accept Changes then Accept Changes then Close” is selected to Close” is selected to complete this record.complete this record.


Input Data Main MenuInput Data Main Menu● The screen at right comes up The screen at right comes up

next. Select data type to be next. Select data type to be input here.input here.

● This example will require data This example will require data describing:describing: Sub-areaSub-area Stream reachStream reach Structure ratingStructure rating Stream Cross Section Stream Cross Section Storm AnalysisStorm Analysis

● Start this example by clicking Start this example by clicking on “on “Sub-AreaSub-Area:”:”


Entering Sub-Area DataEntering Sub-Area Data● Enter data as shown Enter data as shown

for all three Sub-for all three Sub-Areas.Areas.

● Sub-Area and Sub-Sub-Area and Sub-Area Reach Identifier Area Reach Identifier are user defined are user defined alpha-numeric names. alpha-numeric names.

● Sub-Area Reach Sub-Area Reach Identifier refers to the Identifier refers to the Reach that will receive Reach that will receive the Sub-Area’s the Sub-Area’s hydrograph.hydrograph.


Entering Sub-Area DataEntering Sub-Area Data

● If a built-in rainfall If a built-in rainfall distribution is being distribution is being used for the whole used for the whole watershed, “Rain watershed, “Rain Gage Identifier” is left Gage Identifier” is left blankblank

● Note output being Note output being requested for this requested for this Sub-Area: peak flow Sub-Area: peak flow and hydrograph and hydrograph


Entering Sub-Area Data (continued)Entering Sub-Area Data (continued)

● After data for Area 1 After data for Area 1 has been entered, has been entered, simply highlight the box simply highlight the box containing “containing “Area 1Area 1” then ” then type “type “Area 2Area 2”. Begin ”. Begin entering Area 2’s data. entering Area 2’s data. Repeat for “Repeat for “Area 3Area 3”. ”. Click Click “Accept Changes “Accept Changes (Close)”(Close)” button when button when finished. finished.


Getting HelpGetting Help

● To get help at any To get help at any time on input time on input parameters, simply parameters, simply click on the yellow text click on the yellow text for that input.for that input.

● A screen then A screen then appears with a appears with a description of the description of the parameter.parameter.

● To close the help To close the help window, click on the window, click on the input text line again.input text line again.


Entering Stream Reach DataEntering Stream Reach Data

● After all the sub-After all the sub-area data has area data has been entered and been entered and accepted, the user accepted, the user is returned to the is returned to the main input editor main input editor menu.menu.

● Next, click on Next, click on “Stream Reach:”“Stream Reach:” to enter reach to enter reach data.data.


Stream Reach DataStream Reach Data

● Use pull down menu to select Use pull down menu to select the stream reach needing the stream reach needing input. input.

● The names that will appear in The names that will appear in this pull down menu were this pull down menu were defined during the Sub-Area defined during the Sub-Area data entry section (“Sub-Area data entry section (“Sub-Area Reach Identifier”).Reach Identifier”).


Stream Reach 1 DataStream Reach 1 Data

● ““Reach 2” is the Reach 2” is the receiving reach for receiving reach for “Reach 1”.“Reach 1”.

● ““Reach 1” is a structure-Reach 1” is a structure-type routing. The type routing. The structure rating data structure rating data (entered later) will be (entered later) will be identified as “Struct 1”.identified as “Struct 1”.

● Since this is a structure Since this is a structure routing, no channel or routing, no channel or valley lengths are used.valley lengths are used.


Stream Reach 2 DataStream Reach 2 Data

● ““Outlet” (end of the Outlet” (end of the watershed) is the watershed) is the receiving reach for receiving reach for “Reach 2”.“Reach 2”.

● ““Reach 2” is a channel-Reach 2” is a channel-type routing. The type routing. The channel rating data channel rating data (entered later) will be (entered later) will be identified as “Xsec 2”.identified as “Xsec 2”.

● Channel and valley Channel and valley lengths are the same in lengths are the same in this example. No this example. No baseflow is assumed for baseflow is assumed for this reach.this reach.


Entering Structure DataEntering Structure Data

● After the Stream Data After the Stream Data was entered and was entered and accepted, the user is accepted, the user is returned to the main returned to the main input menu. From here input menu. From here “Structure Rating” was “Structure Rating” was entered to bring up the entered to bring up the screen on the right.screen on the right.

● From the pull-down From the pull-down menu “Struct 1” is menu “Struct 1” is selected. selected.


Entering Structure Data Entering Structure Data

● Enter data one line at time Enter data one line at time using the structure using the structure elevation, discharge and elevation, discharge and storage entry cells on the storage entry cells on the left.left.

● Leave “Starting Elevation” Leave “Starting Elevation” blank. This has WinTR20 blank. This has WinTR20 start the routing at the start the routing at the lowest elevation in the lowest elevation in the rating table.rating table.

● Click on “Click on “Accept Changes Accept Changes (Close)”(Close)” button when button when finished.finished.


Entering Structure DataEntering Structure Data

● The user can The user can click on click on “Display Data”“Display Data” for a graphical for a graphical view of the data view of the data just input.just input.


Entering Stream Cross Section Entering Stream Cross Section DataData

● After the Structure Data After the Structure Data was entered and was entered and accepted, the user is accepted, the user is returned to the main input returned to the main input menu. From here menu. From here “Stream Cross Section” “Stream Cross Section” was selected to bring up was selected to bring up the screen on the right.the screen on the right.

● On the pull down menu, On the pull down menu, “Xsec 2” is selected.“Xsec 2” is selected.



● Entered the required Entered the required data.data.

● Cross Section Data Cross Section Data entry is similar to the entry is similar to the Structure Data - Use Structure Data - Use entry cells to the left entry cells to the left and enter data one line and enter data one line at a time.at a time.

● Click on Click on “Accept “Accept Changes (Close)”Changes (Close)” button when done. button when done.



● The user can click The user can click on “Display Data” on “Display Data” for a graphical for a graphical view of the data view of the data just input.just input.



Notes on Cross Section Data:Notes on Cross Section Data: Data usually prepared ahead of time using water Data usually prepared ahead of time using water

surface profile programs such as HECRAS.surface profile programs such as HECRAS.

““Bankfull ElevationBankfull Elevation” represents the point at which flow ” represents the point at which flow transitions from channel to floodplain.transitions from channel to floodplain.

Low ground may be left blank.Low ground may be left blank.

Stream Identifier and Stream Station may be left blank Stream Identifier and Stream Station may be left blank (used only for NRCS Economic Analysis)(used only for NRCS Economic Analysis)


Entering Storm DataEntering Storm Data

● After the Cross After the Cross Section data has Section data has been accepted and been accepted and closed, the user is closed, the user is returned to the returned to the main input editor main input editor menu.menu.

● Select “Storm Select “Storm Analysis” to enter Analysis” to enter rainfall amounts rainfall amounts and distribution.and distribution.


Entering Storm DataEntering Storm Data

● Enter the 5- and 100-Enter the 5- and 100-year rainfall amounts, year rainfall amounts, distribution type, and distribution type, and AAntecedent ntecedent RRunoff unoff CCondition (ARC - Default ondition (ARC - Default is 2).is 2).

● The “Storm Identifier” The “Storm Identifier” can be any alpha-can be any alpha-numeric string.numeric string.

● The screen to the right The screen to the right shows the user selecting shows the user selecting the Type II Rainfall the Type II Rainfall Distribution from the pull-Distribution from the pull-down menu.down menu.


Entering Storm Data (continued)Entering Storm Data (continued)

● The screen to the The screen to the right shows the right shows the “Storm Analysis”“Storm Analysis” window after data window after data has been entered has been entered for both events.for both events.

● The data entry is The data entry is completed by completed by clicking clicking “Accept “Accept Changes (Close)”Changes (Close)” button.button.


Entering Storm Data (continued)Entering Storm Data (continued)

Storm Analysis Input NotesStorm Analysis Input Notes

““Rain Gage Identifier” is not required if TR20 Rain Gage Identifier” is not required if TR20 is executed using the same rainfall amount and is executed using the same rainfall amount and distribution over the entire watershed.distribution over the entire watershed.

““2-Yr 24-Hr Rainfall” is not required unless the 2-Yr 24-Hr Rainfall” is not required unless the Time of Concentration computation option for Time of Concentration computation option for any Sub-Area is used.any Sub-Area is used.


Saving Input FileSaving Input File

● After accepting the After accepting the Storm Analysis data, Storm Analysis data, the user is returned to the user is returned to the WinTR20 Input the WinTR20 Input Editor Main Menu.Editor Main Menu.

● From the “From the “FileFile” menu, ” menu, select “select “Save AsSave As” to ” to give a file name and give a file name and saving location.saving location.


Checking Data Prior to Running Checking Data Prior to Running WinTR-20WinTR-20

● Prior to running Prior to running WinTR-20, it is WinTR-20, it is useful to view the useful to view the watershed watershed “Schematic”.“Schematic”.

● Under the “Under the “ViewView” ” drop down menu on drop down menu on the Controller/ the Controller/ Editor screen, click Editor screen, click on “on “SchematicSchematic”.”.


Checking Data Prior to Running Checking Data Prior to Running WinTR20WinTR20

● The Schematic The Schematic shows how the sub-shows how the sub-areas and reaches areas and reaches are configured.are configured.

● Make sure that Make sure that ““LegendLegend” and ” and ““LabelsLabels” under the ” under the ““ViewView” options are ” options are turned on.turned on.


Running WinTR-20Running WinTR-20

● After the file has After the file has been saved, the been saved, the “Run” option will “Run” option will show in menu bar at show in menu bar at the top.the top.

● To run the program, To run the program, simply click on the simply click on the “Run” button.“Run” button.


WinTR-20 Output- Printed Page FileWinTR-20 Output- Printed Page File

● Following a successful run, Following a successful run, the “Printed Page File” the “Printed Page File” screen comes up.screen comes up.

● For this example, peak For this example, peak discharge and hydrographs discharge and hydrographs were requested for all sub-were requested for all sub-areas and stream reaches.areas and stream reaches.

● Output can be sent to the Output can be sent to the printer or to a file from this printer or to a file from this screen.screen.


WinTR-20 Output- Printed Page FileWinTR-20 Output- Printed Page File

● To simplify the output, To simplify the output, the “hydrograph” option the “hydrograph” option is removed from each is removed from each sub-area and reach and sub-area and reach and the model is then re-the model is then re-run. run.

● The screen to the right The screen to the right shows the simplified shows the simplified output from this second output from this second run.run.


WinTR-20 Output - PlotsWinTR-20 Output - Plots

● WinTR-20 also WinTR-20 also has graphical has graphical output capabilities.output capabilities.

● Following a Following a successful run, the successful run, the “Plots” option can “Plots” option can be selected ...be selected ...


WinTR-20 Output - Plots WinTR-20 Output - Plots

● In this example, the In this example, the Hydrograph for Area 2 Hydrograph for Area 2 100-year is requested.100-year is requested.

● Note: Hydrograph plots Note: Hydrograph plots are only available if are only available if “Hydrograph Output” has “Hydrograph Output” has been selected within the been selected within the individual sub-area/stream individual sub-area/stream reach or as a Global reach or as a Global Output.Output.


WinTR-20 Output - Plots WinTR-20 Output - Plots

● The graphic shown to The graphic shown to the right comes up the right comes up after “Display” is after “Display” is clicked.clicked.

● Options include Options include printing, copying, and printing, copying, and zooming in and out.zooming in and out.


WinTR-20 Output - Plots WinTR-20 Output - Plots (continued)(continued)

● To plot two items on the To plot two items on the same graph, select an same graph, select an option (Multiple Storms, option (Multiple Storms, Alternate or Location) under Alternate or Location) under Multiple HydrographsMultiple Hydrographs

● For this example (multiple For this example (multiple location), a plot of the location), a plot of the hydrograph into and out of hydrograph into and out of the storage structure the storage structure (Reach 1) for the 100-year (Reach 1) for the 100-year event is selected.event is selected.


WinTR-20 Output - Plots WinTR-20 Output - Plots (continued)(continued)

The resulting multiple plot is shown below:The resulting multiple plot is shown below:


Global OutputGlobal Output

● Instead of requesting Instead of requesting individual output individual output options within each options within each sub-area and stream sub-area and stream reach, the user can reach, the user can use the “use the “Global Global OutputOutput” from the ” from the main menu. main menu.


Global Output (continued)Global Output (continued)

● Global Output allows the Global Output allows the user to select the same user to select the same output for output for ALLALL sub-areas sub-areas and stream reaches at and stream reaches at once.once.

● For this example, For this example, hydrographs and peak hydrographs and peak discharge information will discharge information will be output for all points in be output for all points in the watershed.the watershed.


Some Important Considerations:Some Important Considerations:

● Each time a change is made to the input data, Each time a change is made to the input data, the file must be saved before the “Run” option is the file must be saved before the “Run” option is presented. presented.

● When bringing in an existing file, select “ When bringing in an existing file, select “ No No Changes (Close)Changes (Close) ” to get the “ ” to get the “RunRun” option to ” option to appear.appear.

● All data input require a positive entry (i.e. All data input require a positive entry (i.e. carriage return, tab, or mouse click) to be carriage return, tab, or mouse click) to be recognized.recognized.


WinTR20 Support TeamWinTR20 Support Team

Kenneth AycockKenneth Aycock Auburn, ALAuburn, AL 334-887-4525334-887-4525

Geoffrey CerrelliGeoffrey Cerrelli Philadelphia, PAPhiladelphia, PA 717-237-2214717-237-2214

John ChuaJohn Chua Phoenix, AZPhoenix, AZ 602-280-8838602-280-8838

Pete CooperPete Cooper St. Paul, MNSt. Paul, MN 651-602-7884651-602-7884

William MerkelWilliam Merkel Beltsville, MDBeltsville, MD 301-504-3956301-504-3956

Helen Fox MoodyHelen Fox Moody Beltsville, MDBeltsville, MD 301-504-3948301-504-3948

Dan MooreDan Moore Portland, ORPortland, OR 503-414-3054503-414-3054

Tom PerkinsTom Perkins Portland, ORPortland, OR 503-414-3059503-414-3059

Quan D. QuanQuan D. Quan Beltsville, MDBeltsville, MD 301-504-3952301-504-3952

Jon WernerJon Werner Washington, DCWashington, DC 202-702-0772202-702-0772


WinTR20 Web SiteWinTR20 Web Site

For downloading the latest version of WinTR-For downloading the latest version of WinTR-20, click on “hydrology/hydraulics” at the 20, click on “hydrology/hydraulics” at the following website:following website:

http://www.wcc.nrcs.usda.gov/http://www.wcc.nrcs.usda.gov/

This web page also has information on:This web page also has information on: Update notesUpdate notes WinTR-20 Manual DownloadWinTR-20 Manual Download email address for the WinTR20 Support Teamemail address for the WinTR20 Support Team



Converting Old TR-20 Converting Old TR-20 Input Files Input Files

to New WinTR-20 to New WinTR-20 FormatFormat


WinTR-20 Data ConverterWinTR-20 Data Converter

● The data convert subprogram within the The data convert subprogram within the

new WinTR-20 edits and converts most new WinTR-20 edits and converts most

items in the old TR-20 input data setsitems in the old TR-20 input data sets

(Version dated 1983 and later) so that(Version dated 1983 and later) so that

they can be run in the present WinTR-20they can be run in the present WinTR-20

SystemSystem



● The data converter subprogram is within The data converter subprogram is within the new WinTR-20 editor.the new WinTR-20 editor.

● Convert most items in the old TR-20 input Convert most items in the old TR-20 input data set (Version dated 1983 and later).data set (Version dated 1983 and later).

● The data can be run in the present WinTR-The data can be run in the present WinTR-20 format.20 format.



● Some features in the old TR-20 program are not Some features in the old TR-20 program are not used in the New WinTR-20 and will not translate.used in the New WinTR-20 and will not translate.

● These features will be ignored during the These features will be ignored during the conversion:conversion:

- Runoff Option in Rainfall Distribution Table- Runoff Option in Rainfall Distribution Table

- IPEAKS (intermediate peak output)- IPEAKS (intermediate peak output)

- Multiple time increments (new WinTR-20 will- Multiple time increments (new WinTR-20 will

take care of this automatically).take care of this automatically).


Output Option ConsiderationsOutput Option Considerations

● The output options used in the Old TR-20 The output options used in the Old TR-20 input files do not translate over the new input files do not translate over the new version.version.

● The user will have to re-establish the output The user will have to re-establish the output parameters in the new data file:parameters in the new data file:- Global Output- Global Output- Sub-Area or Reach record- Sub-Area or Reach record


Reach Routing ConsiderationsReach Routing Considerations

Reach routing has been revised in the new program, the Reach routing has been revised in the new program, the user will have to input additional data.user will have to input additional data.

The routine in the new WinTR-20 (Muskingum-Cunge) The routine in the new WinTR-20 (Muskingum-Cunge) requires:requires:

- Elevation- Elevation

- Discharge- Discharge

- End Area- End Area

- Top Width- Top Width

- Friction Slope- Friction Slope

tables for tables for ALLALL reach routing reach routing


WinTR-20 Converter WinTR-20 Converter Reach Routing ConsiderationsReach Routing Considerations

■ There is no provision for parametric routing There is no provision for parametric routing (i.e. the “X” and “m” option with the old TR-(i.e. the “X” and “m” option with the old TR-20 ATT-KIN method) in the new version.20 ATT-KIN method) in the new version.

■ Any reach section using “X” and “m” in the Any reach section using “X” and “m” in the Old data will have to have a complete reach Old data will have to have a complete reach routing table developed (routing table developed (Elevation, Elevation, Discharge, End Area, Top Width, and Discharge, End Area, Top Width, and Friction SlopeFriction Slope).).


Reach Routing ConsiderationsReach Routing Considerations

● If Old TR-20 data set had “XSECTN” tables: If Old TR-20 data set had “XSECTN” tables:

- Converter program will calculate a top- Converter program will calculate a top

top width from the old TR-20 “XSECTN” top width from the old TR-20 “XSECTN”

table data.table data.

- User only have to add the friction slope to - User only have to add the friction slope to

the rating table.the rating table.


ExampleExample

Converting Old TR-20 Data File Converting Old TR-20 Data File to New WinTR-20 Format to New WinTR-20 Format


WinTR-20 ConverterWinTR-20 ConverterExampleExample

● Double click on Double click on WinTR-20 icon.WinTR-20 icon.

● WinTR-20 System WinTR-20 System Controller / Editor Controller / Editor Window will pop up.Window will pop up.

● Click on “Click on “Convert old Convert old DataData” from the “” from the “FileFile” ” pull down menu.pull down menu.



• • Select Old TR-20Select Old TR-20

data file to convertdata file to convert

(Example: A1.dat)(Example: A1.dat)



● After Old TR-20 data file After Old TR-20 data file selected and converted – selected and converted – WinTR-20 Identifier window WinTR-20 Identifier window will appears.will appears.

● You may make the change You may make the change to:to:

- Min. Hydrograph Values:- Min. Hydrograph Values:

- Watershed Description:- Watershed Description:

● Click button to Click button to close this window.close this window.



● WinTR-20 System WinTR-20 System Controller / Editor Controller / Editor Window will Window will appears.appears.

● Select “Select “Stream Stream Cross SectionCross Section:” to :” to add the missing add the missing “Friction Slope”. “Friction Slope”.



● Select “Stream Select “Stream Cross Section” from Cross Section” from pull down menu.pull down menu.

● Cross Section data Cross Section data will appears.will appears.

● ““Top Width” values Top Width” values – calculated – calculated automatically from automatically from old TR-20 data.old TR-20 data.


WinTR-20 ConverterWinTR-20 ConverterExample (continued)Example (continued)

● To enter the missing To enter the missing “Friction Slope”:“Friction Slope”:- Click on the line from - Click on the line from the table;the table;

- Data will be appears;- Data will be appears;

- Enter “Friction Slope”- Enter “Friction Slope” ● Click on “Click on “Display Display

DataData” button to view ” button to view Cross Section plot. Cross Section plot.

● Click on Click on button to close this button to close this window.window.


WinTR-20 ConverterWinTR-20 ConverterProgramProgram

● Prompt you back to Prompt you back to the Main Window.the Main Window.

● Peak Output and Peak Output and Hydrograph Output Hydrograph Output for “for “Sub-AreaSub-Area” and ” and ““ReachReach” – click on ” – click on ““Global OutputGlobal Output:”.:”.

● ““Global Output” Global Output” Window will Window will appears.appears.


WinTR-20 ConverterWinTR-20 Converter

● Enter Hydrograph Print Enter Hydrograph Print Precision:Precision:

● Enter Minimum Enter Minimum Hydrograph Display Flow:Hydrograph Display Flow:

● Enter Print Time Enter Print Time Increment:Increment:

● For Peak Output and For Peak Output and Hydrograph Output for Hydrograph Output for ““Sub-AreaSub-Area” and “” and “ReachReach” – ” – check “Yes”check “Yes”

● Click on button Click on button to close this window.to close this window.



● Save new WinTR-Save new WinTR-20 data – select 20 data – select ““SaveAsSaveAs” from ” from the “the “FileFile” drop ” drop down menu.down menu.

● Give a new file Give a new file name with “.inp” name with “.inp” extension.extension.

● Click “Click “SaveSave” to ” to continue.continue.



● To view the To view the schematic - select schematic - select ““SchematicSchematic” from ” from the “the “ViewView” drop ” drop down menu.down menu.

● If the schematic If the schematic looks looks OKAY!OKAY! – – exist the schematic exist the schematic window.window.



● To view the Input To view the Input File - select “File - select “Input Input FileFile” from the ” from the ““ViewView” drop down ” drop down menu.menu.

● Click “Click “CloseClose” ” button to exist this button to exist this window.window.



● To perform the To perform the calculation – select calculation – select ““RunRun” from the main ” from the main menu.menu.

● After a successful After a successful run – the WinTR-20 run – the WinTR-20 Printed Page File will Printed Page File will appears.appears.

● You are Done!You are Done!


Program toConvert HEC-RAS Output to

WinTR-20 Cross Section


Program to convert HEC-RAS output into Program to convert HEC-RAS output into WinTR-20 Cross SectionWinTR-20 Cross Section

Program is incorporated into Windows Program is incorporated into Windows interface; interface;

Reads HEC-RAS text file created by the user Reads HEC-RAS text file created by the user thru HEC-RAS program;thru HEC-RAS program;

After creating HEC-RAS output text file, open After creating HEC-RAS output text file, open WinTR-20 Windows interface and click “WinTR-20 Windows interface and click “FileFile” ” then “then “Import HEC-RASImport HEC-RAS”;”;

Rating table program comes as a part of the Rating table program comes as a part of the Window WinTR-20 system.Window WinTR-20 system.


Modify Profile Output TableModify Profile Output Table

Bring up a project from HEC-RASBring up a project from HEC-RAS Select “Select “Profile Summary TableProfile Summary Table” from “” from “ViewView” ”

menu .menu .



Profile Output Table-Standard Table 1 will appears.Profile Output Table-Standard Table 1 will appears. Select Select “Define Table…”“Define Table…” from “ from “OptionsOptions” pull down ” pull down

menu.menu.



Create a Table Heading window will appears.Create a Table Heading window will appears. Click on “Clear All Table Headings”Click on “Clear All Table Headings” Double click to select – Double click to select – Min. Ch El, LOB Elev, ROB Elev,Min. Ch El, LOB Elev, ROB Elev,

W.S.Elev, Q Total, Flow Area, Top Width, and Frcnt Slope.W.S.Elev, Q Total, Flow Area, Top Width, and Frcnt Slope.



After all seven columns have been selected.After all seven columns have been selected. Click on “Click on “Additional OptionsAdditional Options” tab.” tab. Since only “Valley Cross Sections” are desired – the only Since only “Valley Cross Sections” are desired – the only

box that should be checked is “box that should be checked is “Cross SectionsCross Sections”” Click “Click “OKOK” to exist.” to exist.



Note the order of the columns – Min Ch El, LOB Elev, Note the order of the columns – Min Ch El, LOB Elev, ROB Elev, W.S.Elev, Q Total, Top Width, and Frctn ROB Elev, W.S.Elev, Q Total, Top Width, and Frctn Slope.Slope.

Save Profile Output Table by select “Save Profile Output Table by select “Save Table…Save Table…” from ” from the “the “OptionsOptions” pull down menu.” pull down menu.



Enter name of new Table (Modify). Click “OK”.Enter name of new Table (Modify). Click “OK”. The Profile Output Table-Modify is availableThe Profile Output Table-Modify is available

under “User Tables” menu as well as other.under “User Tables” menu as well as other.



Profile Output Table-Modify must be saved as Profile Output Table-Modify must be saved as text file (Modify.txt).text file (Modify.txt).

Select Select “Write to Text File…”“Write to Text File…” from “ from “FileFile” menu.” menu.



Select an appropriate name for the text file Select an appropriate name for the text file (Modify.txt)(Modify.txt)

Select a directorySelect a directory Click “Click “SaveSave””


Import HEC-RAS into New Import HEC-RAS into New WinTR-20WinTR-20

Using Windows Explorer, Using Windows Explorer, go to the “WinTR20 go to the “WinTR20 Executables” directory and Executables” directory and click onclick on

The following WinTR20 The following WinTR20 System Controller/ Editor System Controller/ Editor Screen comes up: Screen comes up:


Import HEC-RAS into New WinTR-20Import HEC-RAS into New WinTR-20

Select “Select “ImportImport

HEC-RASHEC-RAS” from ” from

“ “FileFile” pull down ” pull down menumenu

Locate the Locate the directory, directory,

select text file nameselect text file name

(Modify.txt)(Modify.txt)



WinTR-20 Identifier WinTR-20 Identifier window will pop upwindow will pop up

Edit / EnterEdit / Enter

- Min. Hydrograph Value- Min. Hydrograph Value

- Watershed Description- Watershed Description

Click “Click “Accept Changes Accept Changes

(Close)(Close)” to close ” to close

this windowthis window



Bring you back to Bring you back to the WinTR-20 the WinTR-20 System Controller System Controller / Editor window/ Editor window

Click on Click on “Stream“Stream

Cross Section:”Cross Section:”

Note: (X indicates some data entered for Note: (X indicates some data entered for section)section)



““Stream Cross Stream Cross SectionSection” window ” window will appears. will appears.

Select “Cross Select “Cross Section” from pull Section” from pull down menu.down menu.



Click on “Click on “Display Display Data “ Data “ button for button for graphical view of the graphical view of the Stream Cross Section Stream Cross Section Display Data. Display Data.

Click on Click on “No “No Changes (Close)’ Changes (Close)’ button to close this button to close this window.window.



From “From “FileFile” menu, ” menu, select “select “Save AsSave As” – ” – give a file name give a file name and location. and location.

““RunRun” button is now ” button is now available.available.



Try to “Try to “RunRun” WinTR-20” WinTR-20

Generated WinTR-20 Generated WinTR-20

Error FileError File

- No Stream Reach data- No Stream Reach data

- No Sub-Area data.- No Sub-Area data.

- No Storm Analysis data.- No Storm Analysis data.


The End.

Documents

WinTR-20 Hydrology Model Basic Tutorial USDA-NRCS WinTR-20 Hydrology Model Basic Tutorial