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Gridded Surface Subsurface Hydrologic Analysis GSSHA

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More information. Environmental Modeling Research Laboratory, ... Hydrologic process modeling vs. total ... Environmental Modeling Research Laboratory, BYU ... – PowerPoint PPT presentation

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Title: Gridded Surface Subsurface Hydrologic Analysis GSSHA


1
Gridded Surface Subsurface Hydrologic Analysis
(GSSHA)
2
Overview
  • Description
  • Processes
  • Building a GSSHA model
  • Demo
  • More information

3
Description
  • Physically based, distributed model
  • 2-D finite difference grid
  • 1-D hydraulic channels
  • Hydrologic process modeling vs. total system
    response

4
Processes
  • Precipitation
  • 2-D overland flow
  • Evapotranspiration
  • Infiltration
  • 1-D channel routing, including hydraulic
    structures
  • Wetlands
  • Lakes/reservoirs
  • Embankments/levees
  • Soil moisture
  • Groundwater
  • Erosion/transport
  • Continuous simulations
  • Storm/tile drains

5
Building a GSSHA model
  • Select grid size
  • Job control
  • Roughness
  • Precipitation
  • Save GSSHA project file
  • Smooth grid
  • Run GSSHA
  • Post processing
  • Demos

6
More information
  • http//chl.erdc.usace.army.mil/gssha
  • www.ems-i.com
  • Questions?
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