WMS: An Environmental Application for MnDOT

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WMS An Environmental Application for Mn/DOT

• 2006 MN GIS/LIS Conference
• October 5, 2006
• Valerie K. R. Svensson

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What is WMS?

• WMS Watershed Modeling System
• It is a comprehensive and integrated hydrologic
  modeling program
• Extracts hydrologic model input
• Automated modeling tools
• Apply graphical user interface
• Model output in various forms

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What is WMS?

• Developed by the Environmental Modeling Research
  Laboratory of Brigham Young University
• U.S. Army Corps of Engineers Waterways Experiment
  Station

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How WMS Is Used?

• Delineate Watersheds / Sub watersheds
• Quad Maps
• Watershed Maps
• LIDAR
• Land Surveys
• Develop hydrologic models
• Cut Cross Sections
• Examine Hydraulic Properties

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How WMS Is Used?

• Compute hydrologic parameters
• Composite Curve Numbers
• Infiltration Parameters
• Runoff Coefficients
• Produce hydrographs
• Detention Basin Analysis
• Detention Basin Design
• Storage Curves
• Routing

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How WMS Is Used?

• Generate reports
• Summaries of Analysis
• River modeling
• Floodwater predictions
• Routing
• Scenario Planning
• Urban planning

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Watershed Delineation

• Create, merge and manipulate terrain data
• Automatically subdivide watershed
• Automatically compute hydrologic parameters
• Manipulate stream networks
• Overrides based on watershed knowledge

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Watershed Delineation
Digital Elevation Model (DEM) loaded into WMS
with Drainage Basin and Water Bodies Delineated
Terms A - Drainage Area BS - Basin Slope MSL-
Maximum Stream Length MSS- Maximum Stream Slope
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Watershed Delineation
Quad maps can be brought in as a background
image. Drainage area can be made transparent
so map details can still be seen.
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Using WMS Tools
Examine Hydraulic Properties and Export to Other
Applications
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WMS Computations
WMS can compute SCS composite curve numbers,
infiltration parameters and runoff coefficients
from available data sets.
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Detention Basin Analysis/Design
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Evaluating Peak Flow
Uncertainty in parameters can be used to generate
probabilistic hydrograph results.
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Using WMS Information
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River Modeling
Create stream geometry and cross sections
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Floodplain Delineation
Delineating a floodplain in WMS is a quick way
to get an estimate of inundation limits. Users
can create maps depicting flood extent and flood
depth.
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Floodwater Prediction
In addition, users can compare two sets of river
stages to create an Impact Map, which highlights
increases/ decreases in flood depths.
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Floodwater Prediction
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Using WMS Information

• Developing Reports
• Comparing Results
• SCS
• HEC-RAS, HEC -1
• TR-20, TR-55
• Evaluating Methods
• Identifying Limitations

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WMS Benefits

• Comprehensive
• Modular
• Integrated
• Flexible
• Compatible
• Automated
• Visual

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WMS

• For more Information
• www.ems-i.com/WMS
• Questions / Comments?