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Home Overview Watershed Modeling System 11 Watershed Modeling System Tool Software
Watershed Modeling System 11 Watershed Modeling System Tool Software
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Watershed Modeling System 11 Watershed Modeling System Tool Software
WMS is a complete watershed solution for automatic delineation, hydrological and hydraulic modeling, floodplain mapping, and storm drainage modeling.
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WMS - Multi in One Watershed Solution, Complete Multi in One Watershed Solution

  • Geographic Information System Tools
  • Network based data collection tool
  • Terrain data import and editing tools
  • Automatic watershed delineation and hydrological modeling
  • Supporting the most industry standard hydrological models
  • Step by Step Hydrological Modeling Wizard
  • Hydraulic modeling and floodplain mapping
  • Rainwater channel modeling
  • Two dimensional (distributed) hydrology
  • Integration with FHWA hydraulic calculation software
  • Export WMS animation to Google TM Earth


Automatic watershed delineation and hydrological modeling


  • Automatic delineation of watersheds and sub watersheds using digital terrain data
  • Automatic computational geometry of geometric watershed data, such as area, slope, average elevation, maximum flow distance, etc
  • Calculate hydrological basin data such as concentrated time, number of curves, and infiltration parameters with a small amount of input
  • WMS contains industry standard equations for calculating sub basin lag time and concentration time
  • Add any number of internal exit points to allow WMS to automatically subdivide the watershed
  • Manipulate the river network to represent human characteristics or propose changes to the watershed
  • Overlay derived watershed boundaries to match your understanding of the watershed


Supports most industry standard hydrological models


  • The license for WMS Floodplain or higher includes interfaces to the following industry standard hydrological models:
  • HEC-1
  • HEC-HMS
  • TR-20
  • TR-55
  • Rational methods
  • Modlat
  • OC (Orange County, California) Rationality
  • OC Hydrology
  • High-density lipoprotein
  • National traffic statistics
  • Convert and compare the watershed results developed for a model with any other models supported by WMS
  • Read and compare the observed hydrograph with the calculated hydrograph


Hydraulic modeling and floodplain mapping


  • Define river centerline and embankment stations
  • Define cross-sectional position
  • Automatically cut cross sections and derive Manning's roughness values from elevation and ground material data
  • Export the cross-section to HEC-RAS or a simplified hydraulic model for dam rupture
  • Run hydraulic model and read water level elevation back to WMS
  • Reading water surface elevation data from hydraulic models or manually entering known water surface elevations
  • Creating flood range and depth maps using digital terrain data and water surface elevation data points
  • Link peak flow or complete hydrological hydrographs from any WMS supported hydrological model to the HEC-RAS hydrological model


Rainwater channel modeling


  • Draw a rainwater channel network or import the network from GIS
  • Calculate the elevation, length, and slope of pipelines based on basic elevation data
  • Link the rainwater drainage network to your hydrological model data
  • Export hydrological model data and rainwater discharge network to EPA-SWMM or XP-SWMM
  • Import existing EPA-SWMM or XP-SWMM files into WMS


Two dimensional (distributed) hydrology


  • WMS supports 2D models:
  • US Army Corps of Engineers (USACE) GSSHA Model
  • HMS version of quasi distributed MODClark method
  • Flood prediction (depth and velocity of the entire two-dimensional domain)
  • Thunderstorm (Local Rainfall) Flood Analysis
  • Analysis of surface water accumulation and infiltration
  • Wetland modeling
  • Modeling the Impact of Land Use Change
  • Modeling the interaction between groundwater and surface water
  • Sediment and pollutant modeling


Import what you need


  • USGS DEM - Download and use any format of DEM from USGS
  • USGS NED data - seamless elevation data can be downloaded and read into WMS
  • ArcGIS Raster (ASCII format) - Reading elevation or attribute data in grid format from ArcGIS
  • ESRI Shape File - Read all shapes and attributes into WMS
  • DXF and DWG CAD files - WMS now supports the latest versions of DXF and DWG
  • WMS can read TIFF, JPEG image files -/images, and geographic reference information
  • Any data supported by ArcGIS can be read into WMS (requires ArcGIS license, compatible with ArcGIS 10.0)


WMS 11.1 System Requirements


  • Operating system: Windows 10
  • RAM: 16GB or more recommended
  • CPU: WMS software is CPU intensive. Some models and utilities integrated with WMS can utilize multiple processor kernels simultaneously. We recommend the fastest CPU allowed in your budget.
  • Storage: The recommended storage amount will vary depending on personal data requirements. The latest version of WMS is disk I/O intensive.

-Mechanical hard drives: basic performance

-SATA solid-state drives: better performance

-NVMe solid-state drives: optimal performance


  • Graphics card: Independent graphics card is superior to integrated graphics card. Basic or mid range nVidia cards designed specifically for gaming work best.
  • Display resolution: 1920 x 1080 or higher

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