WinTR20 Project Formulation Hydrology Computer Program

1
WinTR-20Project Formulation HydrologyComputer
Program

• Overview

Presented by WinTR-20 Development Team
2
Objectives

• Background of the development WinTR-20 computer
  program
• Provide a brief description of the program
• Give an overview of the model, including its
  capabilities and limitations

3
Background

• Technical Release 20 Computer Program for Project
  Formulation Hydrology (TR-20) was first
  released in 1965
• Revised in 1982, 1983, and 1986
• Revision in February 1992
• Major revision late 1998

4
Background (continued)

• Major revision in late 1998
• - WinTR-20 team was formed.
• - WinTR-20 team charge was to
• 1. Modernize and revise the TR-20 computer
  software.
• 2. Upgrade the source code to Visual
  Basic.
• 3. Change the philosophy of data input.
• 4. Provide plots.
• 5. Windows interface and output
  post-processor.
• - First version of Windows based WinTR-20 was
• released in late September 2004.

5
WinTR-20 New Features

• Muskingum-Cunge Channel Routing replaces ATT-KIN
• Sub-Area / Reach Routing Concept replaces old
  Standard Control
• Runoff Curve Number (RCN) Calculation Option
• Time of Concentration (Tc) Calculation Option

6
WinTR-20 New Features (continued)

• Graphics

7
Model Overview

• WinTR-20 System Controller / Editor
• Capabilities / Limitations
• Minimum Data Requirements

8
WinTR-20 System Controller / Editor - File

• File
• - New WinTR-20 File
• - Open Existing WinTR-20 File
• - ReOpen Last Session
• - Convert Old Data
• - Import HEC-RAS
• - Import NOAA Atlas Data
• - Local Land Use
• - Local Soil / HSG
• - Save
• - Save As
• - Exit

New!
9
WinTR-20 System Controller / Editor - View

• View
• - Schematic
• - Input File
• - Printed Page File
• - Error File
• - Debug File
• - Hydrograph File
• - FloodEcon File
• - Smoothed NOAA File

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WinTR-20 System Controller / Editor - Run

• Run

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WinTR-20 System Controller / Editor - Plots

• Plots
• - Hydrograph
• - Storm
• - Peak Flow
• - Time Analysis
• - Alternate
• - Location

12
WinTR-20 System Controller / Editor - Help

• Help
• - WinTR-20 System
• Diagram
• - Overview
• - Help Facilities
• - Getting Started
• - About Controller / Editor
• - Smoothing NOAA 14 Data

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WinTR-20 System Controller / Editor Data Section

• Alternate Analysis
• Dimensionless Unit
• Hydrograph
• Duration Increment
• Global Output
• Input Hydrograph
• Rainfall Distribution
• Stream Cross Section
• Stream Reach
• Storm Analysis
• Structure Rating
• Sub-Area
• Time Analysis
• WinTR-20 Version 1.11
• Verification

14
WinTR-20 Identifier Window

• WinTR-20 Version 1.11
• - Input Units Code
• - Output Units Code
• - Minimum Hydrograph Value
• - Watershed Description

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Close Window Buttons

• Two choices are given on most screens
• Accept Changes (Close) All data shown will
  written to the input file. Selecting this
  accepts the data youve entered and returns you
  to the previous screen.
• No Changes (Close) None of the changes made to
  items in that window will be written to the input
  file. Select this to keep the original data and
  return to the previous screen.

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Sub-area/Reach Concepts

• Watershed - system of sub-areas and reaches
• Sub-areas - watersheds that generate runoff -
  feed into the upstream end of reaches
• Reaches or Routing Elements- represent watershed
  stream flow paths or structures
• Channel Routing elements - Stream Reaches
• Structure Routing elements - Reservoir/Structure
  Reaches
• Watershed Outlet -final reach (required for all
  watersheds)

17
Sub-area/Reach Concepts

• Watershed - system of sub-areas and reaches

• Sub-areas - watersheds that generate runoff

• Reaches - represent watershed flow paths (stream
  channels) or structures

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Sub-area Connectivity
Sub-area Receiving Reach A1 R1
(storage) A2 R2 (stream) A3 Outlet
19
Reach Connectivity
Upper Reach Receiving Reach R1 (res.) R2
(stream) R2 (stream) Outlet
R1
R2
20
Schematics
21
WinTR-20 Schematics
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Sub-Area Window

• Sub-Area
• - Sub-Area Identifier
• - Sub-Area Reach Identifier
• - Sub-Area Rain Gage Identifier
• - Sub-Area Peak Output Code
• - Sub-Area Hydrograph Output Code
• - Sub-Area Time Analysis Code
• - Sub-Area Hydrograph File Code
• Land Use Details
• Tc Details

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Help Window

• Click on text variable name. Click on it again
  to remove the help.

24
Stream Reach Window

25
Stream Cross Section Window

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Structure Rating Window

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Storm Analysis Window

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Global Output Window

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Rainfall Distribution Window

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Input Hydrograph Window

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Dimensionless Unit Hydrograph Window

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Time Analysis Window

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Alternate Analysis Window

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Verification Window

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Output

• Graphical
• Tabular

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File Management within WinTR-20

• Input file example.inp
• Output file example.out
• Hydrograph file example.hyd
• Error file example.err
• Debug file example.dbg

37
Capabilities Limitations

• Types of reaches Channel or Structure
• Channel Manning n 0.005-1.00
• Reach Routing Muskingum-Cunge
• Sheet Flow Max. Length 100 feet
• Runoff Curve Number 30-100
• Weighted Curve Number 30-100
• Drainage Area 1 acre to 300 square
  miles
• Single sub-area min 1 acre - max 20 sq.
  miles

38
Minimum Data Requirements

• Data required for a single sub-area run can be
  entered on the WinTR-20 System Controller/Editor
  Main Window.
• These data include
• WinTR-20 Identifier Input and Output Units
  Code, Minimum Hydrograph Value, and Watershed
  Description
• Storm Analysis Identifier Gage Rain Table (Type
  I, etc.), Gage Antecedent Runoff Condition, and
  Rainfall Data
• Sub-Area Identifier Reach, Drainage Area,
  Weighted Curve Number, Time of Concentration
  (Tc), and Output Code (Peak, Hydrograph, Time
  Analysis, and Hydrograph File)
• Global Output (at least one item selected).

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User Responsibility

• Results from the model can be sensitive to the
  input data.
• It is the users responsibility to ensure that
  all the input data (whether it is actually
  entered or implied through default values for
  blank data fields) is appropriate.

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WinTR-20 web sites

• NRCS users may find WinTR-20 by
• Contact your state ITS for download
• Non-NRCS users may find WinTR-20 at
• http//www.wsi.nrcs.usda.gov/products/W2Q/HH/T
  ools_Models/WinTR20.html
• E-mail questions to
• LO-OR-NRCS-TR20_at_one.usda.gov

41
WinTR-20 Development Team

• William H. Merkel Maryland 301-504-3956
• Helen Fox Moody Maryland 301-504-3948
• Quan D. Quan Maryland 301-504-3952
• Dan Moore Oregon 503-414-3054
• John McClung Arkansas 501-210-8902
• Pete Cooper Minnesota 651-602-7884
• Geoff Cerrelli Pennsylvania 717-237-2214
• Thom Garday Arkansas 501-210-8905
• Don Woodward NRCS-Retired
• Roger Cronshey NRCS-Retired

42
Summary

• Reviewed the background of the development for
  WinTR-20
• Provided a brief description of the Program
• Gave an overview of the model including its
  capabilities and limitations

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The End
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