wintr-20 project formulation hydrology computer program basic input and output presented by:...

WinTR-20Project Formulation Hydrology

Computer Program

BasicInput and Output

Presented by: WinTR-20 Development Team

WinTR-20 Basic Input & Output June 2015

● 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

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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 NOAA_A Rainfall Distribution area.

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Schematic 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

4


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

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Sub-Area Parameters

Sub-Area Parameters Sub-Area 1

Sub-Area 2

Sub-Area 3

Drainage Area (sq.mi.) 1.88 0.51 1.54

Runoff Curve Number 70 74 70

Time of Concentration (hr) 1.23 0.72 1.59

Receiving Reach Number Reach 1 Reach 2 Outlet

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Reach Parameters

Reach Parameter Reach 1 Reach 2

Receiving Reach Reach 2 Outlet

Reach Type Structure Channel

(Struct 1) (Xsec 2)

Reach Length NA 5400 feet

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Reach 1 Structure Data Example problem assumes pool is empty (EL 423) when

storm begins.

Elevation Discharge (cfs)

Storage (acre-feet)

423 0 0

438 50 52.3

458 155 631

459 370 700

461 1350 915

463 2100 1070

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Xsect 2 Rating Table Data derived from HECRAS, Manning’s, etc. Reach Length = 5400 feet, Bankfull Elevation = 422.5

Elevation Discharge(cfs)

End Area(ft^2)

Top Width(ft)

E.G. Slope(ft/ft)

410.0 0 0 0 0.005

413.0 100 81 42 0.005

419.0 1000 502 100 0.007

422.0 2000 843 193 0.001

423.0 3000 1751 1440 0.001

425.0 4000 3844 1994 0.007

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Storm Data

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

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

● Use Type NOAA_A (Type NO_A) 24-hour Rainfall Distribution (built into WinTR-20)

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Getting Started - The Initial WinTR-20 Editor Screen

● From Start Menu, go to All Programs, Engineering Applications, and WinTR-20.

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

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WinTR-20 System Controller / Editor Window

● Click on the “File” menu, select “New WinTR-20 File”

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WinTR-20 Identifier Record

● WinTR-20 Identifier will appear.

● Select “Input Units Code:” and “Output Units Code:” (English or Metric)

● Enter “Minimum Hydrograph Value:” (optional)

● Enter “Watershed Description:”

● “Accept Changes (Close)” button to complete this record.

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Suggested Input Entry Order

1. Enter storm event data2. Enter all sub-area(s) information3. Enter all reach(es) information4. Enter cross section rating data (elev,

discharge, end area, top width, energy grade slope) and storage rating data (elev, discharge, storage) if model has reach or storage routing

5. Global output preferences

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Entering Storm Data

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

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Storm Data

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

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

● Use Type NOAA_A (Type NO_A) 24-hour Rainfall Distribution (built-in to WinTR-20)

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WinTR-20 Basic Input & Output June 2015 17

Entering Storm Data

● Enter the 5- and 100-year rainfall amounts, distribution type, and Gage 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 NO_A Rainfall Distribution from the pull-down menu.


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.

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Entering Storm DataStorm 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 Velocity Method is used to compute Time of Concentration for any Sub-Area.

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Enter Sub-Area Data

● Enter Sub-Area data by clicking on “Sub-Area:”

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Entering Sub-Area Data

● Enter data as shown for all three Sub-Areas.

● “Sub-Area Identifier:” 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.

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Entering Sub-Area Data

● If a single rainfall depth and 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

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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.

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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.

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Sub-Area Parameters

Sub-Area Parameters Sub-Area 1

Sub-Area 2

Sub-Area 3

Drainage Area (sq.mi.) 1.88 0.51 1.54

Runoff Curve Number 70 74 70

Time of Concentration (hr) 1.23 0.72 1.59

Receiving Reach Number Reach 1 Reach 2 Outlet

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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.

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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:”).

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Reach Parameters

Reach Parameter Reach 1 Reach 2

Receiving Reach Reach 2 Outlet

Reach Type Structure (Struct 1)

Channel (Xsec 2)

Reach Length NA 5400 feet

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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.

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Entering Stream Reach 2 Data● “Outlet” is the

receiving reach for “Reach 2”.

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

● Since this is a channel routing, channel or valley lengths are used.

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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.

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Reach 1 Structure Data Example problem assumes pool is empty (EL 423.0)

when storm begins.

Elevation Discharge (cfs)

Storage (acre-feet)

423.0 0 0.0

438.0 50.0 52.3

458.0 155.0 631.0

459.0 370.0 700.0

461.0 1350.0 915.0

463.0 2100.0 1070.0

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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.

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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:”

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

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Reach 2 Rating Table Data derived from HECRAS, Manning’s, etc. Reach Length = 5400 feet, Bankfull Elevation = 422.5

Elevation Discharge(cfs)

End Area(ft^2)

Top Width(ft)

E.G. Slope(ft/ft)

410.0 0 0 0 0.005

413.0 100 81 42 0.005

419.0 1000 502 100 0.007

422.0 2000 843 193 0.001

423.0 3000 1751 1440 0.001

425.0 4000 3844 1994 0.007

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● On the pull down menu, “Xsec 2” 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.

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

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

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Entering Stream Cross Section DataNotes 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.

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Global Output

After all the other data have been entered and accepted, the user is ready to enter the Global Output. The user selects “Global Output:”

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Global Output

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

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

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Saving Input File

● From the “File” menu, select “Save As” to give a file name and directory to save to.

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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”.

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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.

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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 “Run”.

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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.

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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.

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WinTR-20 Output - Plots

● WinTR-20 also has graphical output capabilities.

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

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● In this example, the Hydrograph for Sub-Area 2 for 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.

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● To view the Hydrograph, click on “Display” button.

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

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WinTR-20 Output - Plots ● To plot two items on

the same graph, select an option (Multiple Storms or Location) under Multiple Hydrographs

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

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To view the multiple Hydrograph plot, click on “Display” button.

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Some Important Considerations:

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

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

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

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The End

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wintr-20 project formulation hydrology computer program basic input and output presented by:...

Documents

basic input output

new wintr

following wintr

initial wintr

input file run wintr

subarea parameters subarea

identifier record wintr

subareas subarea